Latest Pipes, Pumps & Valves Africa Jan-Feb 2022 by Lifting Africa

ENDORSED BY SAPMA, SAPSDA, SAVAMA AND VAMCOSA

7 Questions for effective dewatering

JAN/FEB 2022

Listen to your pump

We offer valves for precision processes - and demandingapplications Our valves fulfill the highest of standards and are designed for many years of safe and reliable operation. Our service specialists regularly check, monitor and maintain all relevant system components - depending on what has been agreed. Our modular framework agreements offer you individual service and spare parts concepts. And we even go one step further. We additionally check systems for efficiency in order to reduce operating costs and increase productivity. For example, with the SES System Efficiency Service.

ZTS GATE VALVE

GATE VALVE AKG-A/AKGS-A

STAALWEDGE GATE VALVE AKDS/AKD

NORI 500

Contact our dedicated Valves Sales Engineers for all your Valve requirements Tel: 011-876-5600 • Email: info-za@ksb.com KSB Pumps and Valves (Pty) Ltd www.ksb.com/ksb-za Your B-BBEE Partner

BOA - H

CONTENT COVER STORY Invincible Valves – a force to be reckoned with

ADVERTORIAL LVSA Group achieves API-600 certification - a first in Africa 6 Aeration of Wastewater by means of a blower & air diffusors 8

PUMPS Reducing the hidden cost of electrical submersible pumps

“AQUATHERM, redefining piping, heating & cooling as well as environmental protection”

Tsurumi’s GSZ pump lowers quarry costs and eliminates pollution concerns

Listen to your pump

Locally built diesel pumps for every application

Tough conditions call for Grindex drainage pumps

Efficient motors vital for desalination plants

AMD

Afromix – unique, dynamic and innovative leaders in the mixing and pumping industries

Consider it pumped with the WEDA from Atlas Copco

VEGA’s simple radar formula for better processes

VALVES Merits of mechanical and digital options in dosing pumps

How quality butterfly valves can save your company a lot of money

How ARI designs air-valves for the lowest possible total cost of ownership

Plug valve speed repair

BEARINGS Vesconite’s lead-free solutions to reduce lead exposures

WATER Building on Xylem’s green finance evolution

7 Questions for creating an effective dewatering system

Let’s stop the perennial flooding by effectively utilising the budget

BUYERS GUIDE

On the cover

Invincible Valves, +27 (0) 11 822 1777, enquiries@invalve.co.za, www.invalve.co.za

Pipes, Pumps & Valves Africa Managing Editor: Surita Marx Tel: +27 (0) 87 153-1217 Cell: +27 (0) 83 281-5761 Email: info@pumpsandvalves.co.za Web: www.pumpsandvalves.co.za Sales: Mark Bennett Email: sales@pumpsandvalves.co.za Production Manager: Xane Roestroff Email: adverts@pumpsandvalves.co.za Sub-Editor: Dwayne Marx

Advertisers Air & Vacuum Technologies Bilfinger Bray Industrial Valve Summit Invincible Valves KSB LVSA Macsteel Mine Track & Tools Mining Insaba Sam Engineering Steloy Foundries Stewarts & Lloyds Valves Hospital Vega Controls Xylem

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Disclaimer:

Opinions in this Publication are those of the authors and do not necessarily reflect those of this publication, its editorial board, its editor or its Publishers SAPMA or VAMCOSA The mention of specific products in articles and advertisements does not imply that they are endorsed or recommended by this Publication or its publishers in preference to others of a similar nature, which are not mentioned or advertised. Reliance on any information contained in this journal is at your own risk. While every effort is made to ensure the accuracy of editorial board makes no representations or warranties, express or implied, as to the correctness or suitability contained and/or the products advertised in this publication. The Publisher shall not be liable for any damages or loss, howsoever arising, incurred by readers of this publication or any other person/s. The Publisher disclaims all responsibility and liability for any damages, includes pure economic loss and any consequential damages, resulting from the use of services or products advertised in this publication. Readers of this publication indemnify and hold harmless the publisher, its officers, employees, and servants for any demand action, application or other proceedings made by any third party and arising out or in connection with the use of any services and/or products or the reliance on any information contained in this publication.

Pipes, Pumps and Valves Africa - Jan/Feb 2022

COVER STORY

Invincible Valves – a force to be reckoned with Invincible Valves is more than just a name in the valve industry. As the company celebrates 40 years in business this year, they continue to pride themselves on their high-quality products and outstanding service. Pipes, Pumps, and Valves Africa sat down with Managing Director Pam du Plessis to find out what 2022 has in store for Invincible Valves. Much in the world might have changed since Invincible Valves was founded in 1982, but what has stayed the same is the company’s commitment to its clients, along with its resilience, tenacity, and ability to find solutions in the most difficult conditions. “Invincible Valves has been built on the back of customer service,” says Du Plessis. “We have never been in the business of just selling a valve to a customer. We have always been solutions-based and we make sure that we find solutions for our customers that work.” It is an approach that has stood the test of time as the company continues to go from strength to strength. As a well-established valve company that offers a onestop-shop experience for its customers locally, its offering has always been known on local shores, but it has also caught the attention of major international players and has become a distributor and exporter of products around the world. Particularly in the growing African market, the Invincible Valves team has made major inroads. “Our ability to offer a viable alternative to large industrial customers has boded us well. Not only do we have the advantage of local knowledge but we can also compete competitively from a price point of view.” Du Plessis has been at the helm of the company for the past eight years. Her fierce loyalty to her staff and her unwavering commitment to bringing superior quality products to the market has seen her turn more than one challenge into an opportunity. “I firmly believe that every challenge is an opportunity,” she says. “It is important to not be afraid and to make decisions quickly grabbing that opportunity with both hands. At Invincible Valves, we have learned to not be dictated by the challenges, but rather what we can make from the situation.”

Pipes, Pumps and Valves Africa - Jan/Feb 2022

Dealing with adversity Times of late have not been easy. Falling commodity prices and the outbreak of a global pandemic caught many a business off-guard. “It has been interesting,” says Du Plessis, indicating that the company has opted to branch out despite these tough times. “During Covid, we had to bring about some changes to our operations. Some people started to work from home, while our factory operations had to ensure the correct social distancing measures were in place. Being an essential service, however, our entire team was very quickly on board with these changes. We are proud to say that as a company, we are 100% vaccinated.” According to Du Plessis, now more than ever diversity is important. Hence the decision to expand, not only their physical presence but also to launch a strategy to grow the business internationally. “We continue to expand our footprint into other areas and markets, but at the same time, we remain true to our core philosophy of finding solid customer solutions. We will always be customercentric.” As an approved Level 1 broad-based black economicempowerment supplier, servicing all major industries in South Africa, the company has expertise and experience across a spectrum of industries and applications, offering a comprehensive range of local and imported valves and accessories for the mining, petrochemicals, power generation, water, sewerage, and general industries. “We also have an extensive international footprint built off the back of our solid reputation and our competitive costs.” Growth strategy As part of its growth plans, the board recently approved the purchase of a new building just down the road from the current premises in Germiston. This new building, says Du Plessis, is currently being converted into a reconditioning and rubber lining factory. The 2500 square meter under roof space will

COVER STORY

become the main production hub for the company. Here they will be able to rubber line to unique specifications while reconditioning any valve. The company, as explained by Pam, are experts in reconditioning valves whether the products are supplied to them or manufactured by them. “Our approach has always been only to change what is necessary to replace and to recondition all parts that can be salvaged. Furthermore, we also do pressure testing on all our valves be it new, reconditioned, or rubber lined.” For Du Plessis it is all about standing out, gaining the advantage by going the extra mile. “Another one of the advantages we hold in stock. At any given point we have millions of Rands worth of stock on our floor meaning our customers can access equipment quickly. Turnaround times are fast and downtime is kept to a minimum.” Growing this stockholding is part of the strategy going forward, she says, indicating that the current 6500 square meter premises will in the future be the company’s warehouse once the new production facility is up and running. “We have been running out of space for a while and with the purchase of the new building we can extend and grow our business the way we want to.”

Turning 40 Several functions will be held during the year to celebrate 40 years of business. “It is a big milestone for us and we want to share it with our staff, our service providers, and our customers,” says Du Plessis. A major staff function is being planned for May where the company will celebrate with every one of its employees. Several events will also be held with customers and service providers, while the company will also be exhibiting at some of the country’s biggest shows.

Another important development, critical to the growth strategy, has been the implementation of a new management layer. “In the past, our management was quite flat but the new approach is wholly in-tune with our expansion plans and allows for more of a team approach. We have employed several team leaders and brought in junior leaders as well. This management style is very people-focused and we believe will allow us to increase our productivity and performance overall.”

Pam Du Plessis

Invincible Valves, +27 (0) 11 822 1777, enquiries@invalve.co.za, www.invalve.co.za

Pipes, Pumps and Valves Africa - Jan/Feb 2022

ADVERTORIAL

LVSA Group achieves API-600 certification - a first in Africa A100% black-owned, Level 1 broad-based black economic empowerment company has achieved its vision of manufacturing its own range of valves, becoming the first company in Africa to be granted an API-600 licence and certification. Starting out as an importer and distributor of industrial valves, pipes and fittings, LVSA Group has long been recognised as the largest stockists in Africa and has now added local manufacture to its portfolio.

oil and gas and allows the industry to operate in an environmentally safe manner.”

“Each day, the oil and natural gas industry depends on equipment to produce, refine and distribute its products.”

“Designed for manufacturers of production, drilling, and refinery equipment, the API, or American Petroleum Institute 2022, Monogram Program verifies that manufacturers are operating in compliance with industry standards,” says LVSA CEO Sagren Pillay.

“The equipment used is some of the most technologically advanced available in the search for

In addition to API-600, LVSA is also SABS, or South African Bureau of Standards; MSS, or Manufacturers

Pipes, Pumps and Valves Africa - Jan/Feb 2022

ADVERTORIAL

Standardization Society; ASR, or American Systems Registrar; and ISO 9001:2015, or International Organization for Standardization, certified. The company asserts that it strives to design, manufacture and market quality products at competitive prices. With its manufacturing facility based in Durban, KwaZulu-Natal, LVSA has distribution and repair centres in Durban, Johannesburg, Cape Town and Mozambique. It currently services the local and African market in accordance with national and international standards and specifications. The company notes that it provides complete solutions with a fully traceable in-house quality control system and it has been acknowledged by engineering, procurement and construction (EPC)/ EPC mangement contractors and end-users as a 100% local manufacturer of high-quality industrial valves. The LVSA product range is used in a number of industries such as water and waste, sugar, and power, petrochemical, oil and gas, and includes categories such as gate, globe, check, ball, butterfly, resilient seated gate, metal seated gate, knife gate, diaphragm, air release and sleeve valves.

LVSA, +27 (0) 11 680 2005, sales@lvsa.co.za, www.lvsagroup.co.za

Pipes, Pumps and Valves Africa - Jan/Feb 2022

ADVERTORIAL

Aeration of Wastewater by means of a blower & air diffusors What Wastewater Aeration Does By adding air to wastewater in a treatment plant it assists the aerobic microorganisms in the consumption of pollutants. Wastewater aeration is a vital part of most every biological treatment system. A well designed and operated wastewater aeration system will accomplish two main jobs: • Adds air to the wastewater thus increasing the dissolved oxygen (DO) levels • Mixes the wastewater Adding Air to Wastewater The first job of wastewater aeration is adding air to the wastewater. In a secondary biological treatment process, aerobic microorganisms consume the organic pollutants in the wastewater. These microorganisms require adequate dissolved oxygen or “DO” to thrive. Without sufficient oxygen, microorganisms are not able to consume the incoming organic pollutants in a reasonable time. In order to maintain DO levels, an aeration system is a must. Mixing the Wastewater The second job of wastewater aeration is mixing the wastewater. Proper mixing keeps solids in suspension thus avoiding a build-up of sludge. Mixing also ensures that there are no anaerobic (without air) zones in the wastewater. A common problem, especially with lagoons, is that there is less oxygen present on the bottom. Mixing makes sure all the water and microorganisms come into contact with oxygen. How does Wastewater Aeration Work? Sub-Surface Aeration A sub-surface aeration system provides oxygen to microorganisms by injecting air into the wastewater. Blowers (side channel blowers or Roots / rotary lobe type blowers) or low-pressure screw compressors or turbo blowers for the larger installations) the air which is delivered through airlines to diffusers installed on the

bottom of the tank or lagoon. The diffusers are installed in a pattern on the bottom of the tank or lagoon for uniform coverage. The diffusers have tiny holes that create bubbles that come into contact with the water. Diffusers come in two basic types: fine bubble and course bubble. Fine Bubble Diffusers Fine bubble diffusers typically have thousands of tiny holes and produce the smallest bubbles. The smaller bubbles provide the maximum surface area for contact with the wastewater. They also rise to the surface at a slower rate which provides for a longer contact time. These two factors make fine bubble diffusers the best choice for what is called “Oxygen Transfer Efficiency”. Oxygen transfer efficiency is the amount of air absorbed by the wastewater as a percentage of the amount of air produced by the aeration system. Course Bubble Diffusers Course bubble diffusers typically have a few larger holes that produce larger bubbles. These larger bubbles travel faster to the surface than the fine bubbles. This aspect creates more turbulence and mixing in the wastewater. Course bubble diffusers are an excellent choice in situations where mixing is most important. It should be noted that course bubble diffusers can require twice as much air to operate as fine bubble diffusers. Wastewater Aeration as Part of a Treatment Process Wastewater aeration is typically used during the secondary treatment process. This process is most often an activated sludge process. Aeration in an activated sludge process is accomplished by pumping air into the tank or lagoon. Proper aeration promotes the growth of microorganisms or microbes in the wastewater. The microbes feed on the organic pollutants and form flocs which can easily settle out. The flocs are allowed to settle out in a separate settling tank or lagoon. The flocs of bacteria that settle and accumulate on the bottom of the tank or lagoon form activated sludge. The activated sludge can then be recirculated back to the aeration basin or lagoon to increase the rate of consumption of pollutants. Wastewater aeration is also used in tanks and lagoons used for storage. Examples of these storage tanks and lagoons would be ones used as sludge holding and flow equalization. In these portions of a wastewater treatment system (tank or lagoon) it is important to maintain the living microorganisms. If the microorganisms begin to die, the wastewater will become septic, and odour will start to be an issue. Air & Vacuum Technologies (Pty) Ltd can assist you with all your needs when it comes to most of the equipment required on a wastewater treatment plant. We are the direct importer of the full Robuschi range of Rotary lobe, screw compressors, turbo blowers & centrifugal pumps, all commonly found on said plants. We offer peristaltic pumps, doing pumps & side channel blowers. We are the SOLE distributor for the WTE range of air diffusers.

Pipes, Pumps and Valves Africa - Jan/Feb 2022

Instruvac (a division of Air & Vacuum The ROBUSCHI RBS range of low-pulse, tri-lobe blowers & exhausters with pressures up to 1bar & vacuum levels to -500mbar. Flow rates from 240m3/hr up to 10,400m3/hr.

distributor for Robuschi liquid ring vacuum pumps as well as roots blowers & blower packages – all made in Italy.

PeriBest Peristaltic pumps offer extremely heavy duty design for the most demanding applications up to 10 bar. and the latest technology peristaltic hose with XXL roller technology. PeriBest’s ease of assembly, operation and maintenance saves on costs and downtime.

A&VT = ADDING VALUE TOGETHER

info@vactech.co.za

011 318 3241/2/3/4

www.vactech.co.za

Reducing the hidden cost of electrical submersible pumps

PUMPS

Electrical Submersible pumps, after being installed and in operation, are in most cases completely submerged and out of sight with little attention being paid to the actual operating costs involved. When purchasing a submersible pump or any Capital Equipment the main consideration should be the total cost of ownership and not only the purchase price of the pump, the total cost of power usage, maintenance, as well as the cost involved in the loss of usage must all be taken into account. There are many factors that will have a drastic influence on the life expectancy of the submersible pump and if not properly addressed will result in unnecessary costs which could quite easily have been avoided. The submersible pump is part of a pumping system and it is essential that the system is evaluated to ensure that that the system has the ability to achieve the desired result at the minimum total costs. When designing the pumping system certain information is required to ensure the optimal performance, starting with evaluating the liquid that needs to be pumped and the

following information would be required before selecting the submersible pump. Evaluation of Pump System: 1) The composition of the liquid needs to be known and it is important to establish if there are any solids present in the liquid, and should there be what are the size of these solids as well as the specific gravity of the liquid. If the pH of the liquid is not neutral the chemical composition will also be required. The above information is required to determine the material of construction of the pump. 2) What volume of liquid that needs to be pumped and this must be determined accurately in order to select a pump with the correct capacity? The pumping capacity will be directly proportionate to the cost of the pump. The volume required to be pumped is calculated to be slightly greater than the maximum inflow of the liquid into the sump or tank. 3) The Vertical height which the liquid must be pumped to relative to the pump. 4) The pipe length as well as all the pipe fittings to be used also needs to be known in order to determine the friction loss which is determined by the flow rate and the diameter of the discharge pipe. For borehole submersible pumps the maximum volume that can be pumped cannot be more than the inflow of water entering the borehole from the aquifer. If the borehole pump is also to be used to supply water to an irrigation sprayer then the pressure that the sprayer would require also needs to be included when determining the total discharge pressure of the borehole pump. The evaluation of the pipe system will also be a factor to be reckoned with when the total discharge pressure is calculated. Incorrect pipe diameter will contribute to both unnecessary wear and high energy costs when pumping a specific volume and it is essential that the pipes are sized to achieve the minimum energy usage while achieving the optimum flow. Once the pipe diameter has been determined other fittings such as valves, bends, and etcetera must also be taken into account to determine what is commonly known as friction losses. The total discharge pressure is made up of three components being the sum of the vertical pressure plus the pressure to overcome the friction loss and the required discharge pressure. Once the required flow rate and total pump discharge pressure of the pump have been determined the pump can be selected. All pumps are tested and a pump curve is generated with the pressure – referred to as the HEAD (H) measured in “kPa” or “Meter” on the Y axis and the flow rate in “m3/h” or “l/s” on the X axis. The Power Absorbed, and the efficiency is indicated on the right-hand side of the curve’s Y axis. When

Pipes, Pumps and Valves Africa - Jan/Feb 2022

PUMPS

evaluating the pump curve a point will be identified as the “Best Efficiency Point” (BEP) and it is at this point that will give the optimum delivery using the least power and it is at this point that the pump selected must be operated at. To confirm that the Submersible Pump is operating at the BEP a pressure gauge can be installed as close as possible to the Submersible Pump discharge and using the pump curve with the discharge pressure known it can be confirmed at what point on the curve the Submersible Pump is operating at. This is also applicable to all centrifugal pumps. Material of Construction The product being pumped can also influence the total cost. In most cases, submersible pumps are used to pump water and all pump curves are generated for this condition and should the product contains solids or a chemical substance, as previously mentioned, a detailed analysis of the product should be done. With solids present in the liquid the Specific Gravity (SG) and particle size is important as this will have to be taken into account when determining the installed power of the submerged pump, while with chemical substances the Ph and a chemical composition will be important, and must be established to ensure that the submersible pump is constructed from materials that will be capable of pumping the specific liquid with the minimum wear. When liquid that has both solids and is acidic needs to be pumped, certain Duplex Stainless Steels such as Cd4CMu can be used but is advisable to consult an expert with regards to the selection of the materials of construction. It is of utmost importance that when pumping liquids containing solids that the pump operates at BEP. The wear rate at BEP will be minimal and will contribute to both a cost saving on power consumption and an extended operating life of the pump. Failures The major cause of failures of submersible pumps is the overheating of the electrical windings and it essential that

the heat is dissipated away from the electrical windings. Most submersible pumps rely upon the product being pumped to dissipate the heat from the windings and mechanical seals and when the pumps run dry in most cases the pump will build up the heat and the electrical winding as well as the seals would fail. To improve the heat dissipation the motor housing is filled with oil and the oil will effectively dissipate the heat away from the electrical windings and seals even if the pump runs dry which will ensure that the electrical winding does not overheat and burn out. Damage to the electrical cables also frequently occurs and it is essential that the pump is fitted with a good quality trailing cable with screened conductive conductors. Electrical Installation All electrical submersible pumps will require an electrical control panel that has been specifically designed to protect the pump should the pump be overloaded. With the pump operating in liquid the panel must be fitted with an Earth Leakage. The installation must be done by a qualified electrician with a wireman’s license and a certificate of compliance must be issued. Conclusion If the above facts are taken into consideration the use of Electrical Submersible Pumps can be economically viable and can be used in any application where the Submersible Pump will fit into, being either a tank or a sump. The Electrical Submersible Pump is a portable pump and can in most cases be used in place of Horizontal or Vertical Spindle pumps. Hazleton Pumps, +27 (0) 12 666 8203, info@hazletonpumps.com, www.hazletonpumps.co.za Pipes, Pumps and Valves Africa - Jan/Feb 2022

ADVERTORIAL

“AQUATHERM, redefining piping, heating & cooling as well as environmental protection” Architects, engineers, designers and building owners are often restricted to selecting pipes that are available on the market and not what will serve their purposes. These limitations come with future maintenance costs, pipe bursts and frequent pipe replacement. Piping System Planning In addition to ecological and economic factors, the following criteria must be considered when planning pipe systems:

• Insulation against energy loss or exposure to cold weather • Flow and flow noise • Longevity and reuse of the material

• Weight • Stability • Pipe roughness • Impact strength • Thermal conductivity • Corrosion resistance • Processing spans • Temperature ranges

Aquatherm Green Pipe The special composition of the Aquatherm-owned plastic fusiolen® PP-R makes the green pipe a specialist for use in potable water applications and is suitable for many other applications. Applications: • Potable water application (cold and hot water pipes) • Connection to heating and cooling • Heat pumps • Compressed air system • Swimming pool technology • Chemical transport (considering to chemical resistance) • Applications in shipbuilding • Underground supply networks • Pipelines in agriculture and horticulture Characteristics: • Suitable for potable water installations • Completely free of heavy metals • Has high environmental compatibility • High stability • Low weight • High impact rate • Less pipe roughness • Easy to process • Virtually leak free, homogeneous fusion welding • Heat and sound insulating characteristics and corrosionresistant Ecology and Sustainability The environmentally friendly and hygienically enhanced potable water system from Aquatherm is physiologically and microbiologically harmless.

Pipes, Pumps and Valves Africa - Jan/Feb 2022

ADVERTORIAL

This has been verified in the numerous certifications and approvals from all over the world. Our pipes are NSF (National Sanitation Foundation), BREEAM (Building Research Establishment's Environmental Assessment Method) and LEED (Leadership in Energy and Environmental) certified for hygienic, environmental sustainability and energy efficiency applications. Aquatherm is the most widely certified and greenest PP-R piping system on the market today. Aquatherm Blue Pipe The specialist for the transport of cooling and heating media in closed systems as well as for many industrial applications has been specially developed for applications outside the potable water installations. Applications • Connection to heating and cooling • Chilled water applications • Compressed air systems • Vacuum systems • Swimming pool technology • Chemical transport (considering chemical resistance) • Applications in shipbuilding • Underground supply networks • Pipelines in agriculture • Geothermal energy

surface roughness. Pump capacities and dimensions can be selected smaller than for steel pipe systems with expected incrustation. Even with lower energy costs the savings potential is clear.

The Aquatherm blue pipe includes a complete solution system in combination with Aquatherm green pipe fittings in the field of chilled water and various industrial applications.

No additional chemicals necessary to protect the pipe No treatment plants required for complete Aquatherm blue pipe installations, save costs and maintenance intervals.

No corrosion problems Air conditioning systems (problems with dew-point) installed with steel pipes especially are affected by corrosion at the outer surface of the pipes.

Value Added Services • 10-year warranty • 20M Euro product liability • Design assistance (CAD, BIM files, Fluid flow, Pipe stress, Manifold design) • Training -ECSA CPD -Installation

Aquatherm blue pipe is manufactured from 100% corrosion resistant materials which increases the lifecycle of airconditioning pipe systems considerably. Less Insulation Due to its excellent thermal insulation properties Aquatherm blue pipes compared to metal pipes require a considerably thinner insulation. Energy Saving Lower pressure drops and smaller pump power required when compared to normal metal pipes, due to lower

Umulig Engineering, +27 (0) 31 942 0489, admin@umulig.co.za, www.umulig.co.za Pipes, Pumps and Valves Africa - Jan/Feb 2022

Tsurumi’s GSZ pump lowers quarry costs and eliminates pollution concerns

PUMPS

Energy savings of around $1,000 per month were just one of several benefits for the new owners of a southern Wisconsin aggregate plant that made the decision to replace existing on-site diesel-powered dewatering equipment with a high-volume electric submersible Tsurumi GSZ pump. Following the blasting of rock for use in the construction of asphalt and gravel roads, a pit at a quarry inevitably begins to fill with rain and groundwater, which must be steadily removed to ensure adequate harvesting of rock. The recently acquired Wisconsin plant came with dieselpowered pumps, which release harmful emissions as well as cost about $1,600 in fuel per unit per month to operate. Assessing the situation, the quarry’s new owners decided improvements had to be considered. Next, a quarry representative called on their “pump guy,” Brian Radovich, vice president at Tsurumi distributor Wisconsin Shoring & Supply, for advice. Having become familiar with groundwater pumps while shoring up trenches and excavations after its founding in 1999, the equipment company quickly recognized an opportunity and began selling Tsurumi pumps in 2002, amassing a vast amount of knowledge ever since. “We had already switched the quarry over to Tsurumi in their other plant where they mine gravel — mainly KTV and

KRS pumps,” Radovich said. “Of course, they’ve had better results with them, and are very pleased.” But being deeper and at risk of quickly filling up with water, the quarry remains a typical application for diesel pumps because electric submersibles are common — and mistakenly — assumed to be useful only in small pits. “GSZ pumps are the most formidable high-volume dewatering pumps offered today,” Radovich continued. “So, with the help of [Tsurumi Midwest Regional Manager] Joe Ranieri, I recommended the GSZ5-37-4H unit for the quarry.” Electric switch Despite standing at just over 61 inches tall, and approximately 35 inches of diameter, the newly installed submersible pump is actually one of the smallest and lowest horsepower in the GSZ range, and it has proven more than capable of emptying the Wisconsin quarry pit. With its output of 50 hp (the range tops out at 200 hp) and six inch-diameter discharge, it efficiently pumps the water 100 feet up into a retention pond, for subsequent use as process water in the wash plants. “After the blasters have finished, they rely on KTV pumps while they’re hauling away the stone,” Radovich explained. “Then they remove the pumps and set the GSZ to the bottom of the quarry with an automatic float that activates the pump as soon as the pit begins to fill up again. The trucks run up and down there every weekday, so keeping the pit dewatered is crucial to successful operation of the quarry.” “Now that they have switched to our electric pump, the running costs are only $600 a month, a saving of around $12,000 a year,” Tsurumi’s Joe Ranieri said. “But in addition to those cost savings, there is a huge increase in the level of equipment availability, given the amount of downtime that typically comes with diesel pumps due to their more intensive servicing.” The GSZ pump can typically double or even triple parts wear life in aggressive dewatering applications due to an impeller speed that is 50% lower than alternatives. It also boasts excellent durability due to its high chrome impeller, cast iron suction cover and stainless-steel fasteners. And, in contrast to the high-level of maintenance required by the oil-filled seals of diesel pumps, Tsurumi's 4-pole, 1800 RPM models feature exclusive Seal Pressure-Relief Ports that protect their mechanical seals by providing

Pipes, Pumps and Valves Africa - Jan/Feb 2022

a flow path above the pump casing to allow a release of water from the pump and away from the shaft. The mechanical seals remain isolated in the oil chamber above this flow path, protected from any excessive pumping pressure or water hammer that may cause premature wear or failure of the mechanical seals in high-pressure applications.

8 pump in the pit without a hose on the discharge, so it basically works as a fountain that keeps the water in motion,” Ranieri said. “So even during Wisconsin’s coldest winter nights, it still leaves a decent-sized area of water in liquid state to prevent any problems arising.”

In addition to no longer needing to carry out oil changes, further savings have been made by eliminating the need for staff to jump in a pickup truck and transport fuel to refill the pump every two or three days.

Fortunately, despite being designed for light- to mediumduty applications, the wear-resistant KTV pump has easily handled the demands placed on it, ensuring the GSZ pump continues to function as expected.

Keep it moving Aside from their temporary use following blasting, small, lightweight KTV series pumps also play a vital, innovative role in ensuring the GSZ operates flawlessly throughout the bitter Midwest winter, when freezing water could lead to damage of the pump, its hose, or lead to other issues. The KTV creates constant turbulence that prevents the water around the GSZ from freezing.

“The installation has been in place for over a year now, and it’s working out great, even over what was an extremely cold winter in 2021,” Radovich concluded. “It might be the quarry’s first GSZ pump, but I doubt it will be the last one we install in applications like this.”

“Brian came up with the idea of running a 1 hp KTV2-

PUMPS

“Any pump with vacuum prime can suffer volume loss on the suction,” Ranieri said. “The diesel pumps that were previously at the site would burn through oil quite quickly, so the guys had to keep filling that up. Then, over the course of six to 12 months, you have to replace the oil seal — pull the whole pump apart, pull the impeller off, etc., so there’s downtime there. And there’s always the possibility of contaminating groundwater in the event of a diesel or oil leak, so the customer is obviously very happy to avoid that.”

Tsurumi Pumps Africa, +27 (0) 82 404 4743, enquiries@tsurumipumpsafrica.com, www.tsurumipumpsafrica.com

Most advanced foundry group in South Africa Steloy Foundries is specialist in the supply of as-cast and machined components for pumps and valve castings manufactured in stainless steels, nickel-based corrosion resistant alloys, carbon steels and low alloy steels for applications where severe corrosion, high pressure and high or cryogenic temperatures are prevalent. Castings are produced at Steloy Foundries, all of which have access to centralised solidification analyses and modelling (Solidworks) and CNC patternmaking capabilities. All components are produced in accordance with the relevant ASTM, DIN EN and SEW specifications and conform to applicable NACE specifications. +27 (0) 13 110 2681 support@steloyfoundries.com www.steloyfoundries.com Pipes, Pumps and Valves Africa - Jan/Feb 2022

Listen to your pump

PUMPS

Few people would just drive a car off the lot without taking it for a test drive first. Yet most end users of pumps are quite happy to do just that when purchasing a pump. Pump testing is an essential step in “test driving” your pump before leaving the lot. Evaluating the hydraulic and mechanical performance of a pump before installation is a critical step not only for refurbished, upgraded and re-engineered pumps but also for new pumps. According to Thomas Papadakos, a manager at Hydro, testing applies to all pumps and should be a requirement before installation at any given operation as it delivers insights into equipment reliability and performance not to mention saving on any possible downtime. “Understanding the power and benefit of aftermarket testing can be confusing. Especially without the knowledge of the various testing capabilities available,” he says. “Using the services of an accredited third-party testing facility might initially feel like an added cost but in the long run it saves time, headaches and money.” Papadakos says performance testing can apply for many reasons. “When it comes to new pumps, designs and hydraulic upgrades there is benefit in knowing the equipment that you are installing will meet your performance targets, while all pumps that have been repaired or rebuilt should be tested to ensure they are performing at a premium when going back into operations. Testing should also be done when impellers have been modified or trimmed.” According to Papadakos, there are several benefits to running a certified performance test before the installation of a pump. “Firstly, it verifies the overall pump performance. During the test key characteristics such as the total differential head, the pump input power and the pump efficiency is measured. It also

Pipes, Pumps and Valves Africa - Jan/Feb 2022

includes a cavitation test, where we determine at which point the pump begins to cavitate, something that is critical to know for the operation of a healthy pump,” he explains. Papadakos says checking the performance allows one to ensure that the conditions required out in the field are met. “Pump input power, for example, is an important measure. There are many services out there that require a pump to operate 24/7 365 days a year. The power that is drawn over a full year can make a huge impact if the pump is not operating at its prime efficiency.” Another important benefit of testing is that it validates the mechanical performance of the pump. “A vibration test, as well as a look at the bearing and casing temperatures, can hold significant benefit by picking up problems sooner rather than later. Ultimately, testing ensures that bad actors are identified quickly. Problems are diagnosed, isolated and fixed through the test in a controlled environment before field installation and before the next failure. It makes for an all-around healthier pump.” He advises pump owners to choose testing facilities that are impartial and accredited. “Choose your test lab based on their design and capabilities. Make sure the facility can meet international standards and have the necessary accreditations in place. “When testing it is important that the facility measure as many variables as possible,” says Papadakos. “Everything is measured with the respective flow. The basic parameters that must be looked at include

flow capacity, differential head via pressure, pump input power and shaft speed. Also, the bearings, fluid and surface or skin of the pump must be tested along with the accelerometers and proximity probes.” Standing the test of time Sharing a case study during a recent online presentation Papadakis said thanks to expedited testing excessive clearance was uncovered in a critical unit used in an oil refinery.

– so any fluid leakage was dangerous it did have benzene and hydrogen sulfide in the fluid and so a dual cartridge seal in the pump to ensure liquid does not make it out of the pump. He said during the performance test the pump ran for 12 minutes operating on a mix of half speed and full speed, but the concern was raised when the temperatures increased very quickly to 197 °F (89,4 °C). “At around 200 °F (93,3 °C) we would shut the pump down and so the fast spike in temperature when the pump was running at full speed was worrying. We realised there was an issue because the temperature was rising in just too short a period.” He said whilst the total dynamic head was found to be the same as stipulated by the OEM, the test found the power curve to be much higher than that of the OEM’s curve. “This led to a thrust bearing inspection and it was

He said once the problem was identified it was just a matter of fixing the problem – in this case sending the unit for machining to skim cut the end-cover and reduce the gap. A second performance test was conducted and the pump was given the go-ahead to return to the field. “What would have happened without having this test is that the unit would have gone from repair straight back into operation where temperatures would have continued to climb ultimately leading to the thrust bearing wiping out and catastrophic damage to the mechanical seals and impellers. This would have resulted in serious cost, the pump having to be sent back for more warranty work, more downtime and costly replacement of parts.” Katapodus said thanks to the performance test this was all prevented. “The moral of the story is don’t wait until it is too late. Listen to your pump. Too often the lack of testing results in failures happening in the field and that automatically doubles the costs. The time and cost of testing are still far less than that of unanticipated downtime and operations coming to a halt because of a faulty pump.”

PUMPS

“The bearing barrel pump operated with gasoline type fluid which is very hazardous and therefore it was critical to making sure the pump was efficient and operating at top functionality before it was returned to the field after being sent for repairs with the Original Equipment Manufacturer (OEM).”

established that the clearance between the thrust bearing and bearing housing was larger than the OEM specifications. This excessive clearance or gap was allowing for oil to build up in the cavity which caused the excessive heat.”

Hydro Pumps, +27 (0) 12 807 3256, sales@hydropumps.co.za, www.hydro-solutions.co.za

HIGH PERFORMANCE

FLOW CONTROL Bray provides high performance flow control solutions to handle your most challenging applications. To learn more about our complete portfolio of valves, actuators, and controls, visit us online at BRAY.COM

Bray Controls Africa (Pty) Ltd Unit 11, ABC Business Park Mastiff Rd, Linbro Business Park Sandton 2090, South Africa Telephone: +27 10 007 3222

Pipes, Pumps and Valves Africa - Jan/Feb 2022

Locally built diesel pumps for every application

PUMPS

With its expertise and experience in custom-building diesel driven pumps locally, Integrated Pump Rental ensures their customers get exactly what they need with a short lead time. “Our in-house capability allows us to design and build pumps to any required specification,” says Steve du Toit, rental development manager at Integrated Pump Rental. “Part of our process is to assess the application and discuss options with the customer, advising on a solution that suits both the operational requirement as well as their budget.” As the local distributor of the high quality Sykes diesel driven pump range, Integrated Pump Rental generally uses the appropriate Sykes wet end for each pump design, usually coupled to a Kirloskar diesel engine – a wellrespected and popular brand. However, the brands of key components can be chosen by the customer according to their preference, says Du Toit. “We then design and construct the fuel tank and base or trailer unit, the scale of which depends on the pump’s intended working conditions, mobility and fuel consumption,” he says. “The material of construction must also be carefully selected, based on factors like water acidity and abrasiveness.” In the case of high acidity, for instance, stainless steel is the preferred material, while more abrasive applications can be served with a coated S.G. iron material. The solution is put together by a team that includes qualified draughtsmen and experienced boilermakers, electricians and diesel mechanics. “Our performance driven approach ensures that all

Pipes, Pumps and Valves Africa - Jan/Feb 2022

the necessary specialists collaborate closely in turning the customer’s requirement into reality,” he says. “This includes hands-on involvement by top management, making for quick decisions, innovative solutions and a fast process all round.” The result is a top quality locally assembled pump which draws on readily available components and can be delivered within tight timeframes. Customers can also rely on Integrated Pump Rental’s well-known service levels to ensure ongoing maintenance and optimal uptime. “Our versatile team, combined with the wide range of Sykes pump capacities, allows us to locally build pumps for every application – from small-scale contract dewatering to large open pits on mines,” he says. Du Toit notes that many of their custom-built pumps are for customers who have previously rented pumps from the company, and are impressed by the performance and reliability of those Sykes units. While diesel driven pumps are most in demand, Integrated Pump Rentals can also design pumps with electric motors, for those applications where electrical power is available on site. Integrated Pump Rental, +27 (0) 11 894 2906, admin@pumprental.co.za, www.pumprental.co.za

Tough conditions call for Grindex drainage pumps

PUMPS

Tough pumping applications such as on mine and construction sites need a proven range of drainage pumps that are heavy-duty but offer low total cost of ownership – these characteristics have been well proven in Grindex units. The Grindex range of drainage pumps handle water with abrasive solids up to 12 mm in size, and with high pH values from five to eight. Distributed locally by authorised southern African agent Integrated Pump Technology, Grindex submersible pumps have a heritage going back over 60 years – with more than 400,000 pumps delivered. Drainage pumps are most suitable when users need to pump large quantities of dirty water, but still need to achieve heads of up to 200 metres, or flow rates of up to 350 litres a second. These Grindex pumps deliver all that, and convenience besides. This is according to Integrated Pump Technology sales manager, Jordan Marsh who say the unique valve on Grindex drainage pumps enables air cooling of the motor so they can run dry without a problem – and therefore don’t need babysitting. On the small end of the range – comprising the Micro, Milli and Mini models – these pumps are compact, lightweight and ultraportable. The Micro model’s low power consumption makes it ideal when running on a generator. The Milli looks similar to the Micro, but enables low suction down to only a few millimetres, thanks to the unique non-return valve.

Pipes, Pumps and Valves Africa - Jan/Feb 2022

In the medium section of the Grindex range are the Minex, Minette, Minor, Major, Master and Matador. The revolutionary hydraulic design ensures high wear resistance and dramatically reduces any performance drop that may result from long-time wear. “With their internal starter, SMART motor protector and optional level regulator, these pumps provide fully automatic protection and control without the need for external starter,” Marsh says. “The soft starter means smoother motor acceleration, thereby protecting the pump while reducing equipment wear and mechanical stress.” There are two large Grindex drainage pumps – the Magnum and the Mega. The Magnum is relied on for the toughest jobs, with high quality, reliable design combined with the ease of maintenance. Made of cast iron, the Mega is ideal for operating in deep excavations where very highhead pumping is needed. Designed to handle pH levels from six to 13, it can also be fitted with zinc anodes for extra protection. Integrated Pump Technology, +27 (0) 11 894 2906, info@pumptechnology.co.za, www.pump-technology.co.za

Regulate it, don’t let the pressure regulate you Start it, stop it, or regulate it with our range of approved gate, globe and check valves. At Macsteel, we source the highest quality products (including L&T Valves) suitable for the Oil and Gas industry. We also carry more stock of approved GGC products than anyone else, ensuring you’re always on top of your infrastructure needs.

SCAN ME

Scan the QR Code to see more of our Fluid Control product range

Efficient motors vital for desalination plants

PUMPS

With concern growing that climate change will exacerbate South Africa’s vulnerability to drought, the country is likely to see more desalination plants being installed along our coastline. Coastal provinces such as the Western Cape and Eastern Cape have been experiencing intense droughts in recent years, and about 10 desalination plants have already been built. According to Dillon Govender, Zest WEG’s public sector specialist, a key cost factor in these plants is the electrical energy required for the high volumes of water being pumped, as well as the volume and high pressure required for the reverse osmosis process, which is the most commonly used technology these days. “Desalination plants employ numerous pumps for various functions in the process – all of which need to be driven by electric motors,” says Govender. “The reverse osmosis system also requires relatively high pressures to be maintained, to enable salts to be removed through the use of semi-permeable membranes.” Reducing the specific energy consumption (kwh/m3) is therefore a strategic requirement underpinning these plants’ viability and performance. WEG’s range of high efficiency motors are being employed across the complete range of desalination plant pump applications, he says. These include the intake of raw water (seawater) into the pre-treatment section for the first filtering, high pressure pumping through the reverse osmosis phase itself, post-treatment and storage, and the final pumping to distribution networks and facilities.

“Our motors are also used for the pumping of concentrated sseawateror brine back into the ocean,” he says. “Only about half or around 45% of the volume of the seawater entering the plant through the intake system actually leaves as potable water.” To further enhance the efficiency of the pumping circuit, Zest WEG supplies gearboxes and variable speed drives (VSDs) with integrated PLCs. This optimises energy consumption while ensuring the required pressure and flow through the desalination membranes, as well as reliable performance in auxiliary systems such as backwashing, dosing, chemical cleaning and brine pumping systems. WEG’s Pump Genius software enables a standard VSD to be dedicated to specific pumping systems with various motor and pump combinations, thereby providing improved control and monitoring capability as well as maximising energy savings and reducing downtime. “We are able to design and supply the necessary electrical enclosures and motor control centres (MCCs) in low and medium voltages, as well as container-type electrical rooms,” says Govender. “Zest WEG also provides solutions for emergency power generation, power distribution and alternative energy generation. Using the Motion Fleet Management (MFM) tool, will also reduce operational costs for maintenance tasks.” Due to the corrosive coastal environment typically associated with the location of desalination plants, the WEG high efficiency motors have integral IP66 protection, facilitating protection against sasaltwaterngress caused by heavy seas and higher tides. Installation of heaters as well as the epoxy coatings of the motors, helps achieve greater longevity under these arduous conditions. WEG’s Variable Speed Drives (VSD) and soft starters are also available with IP55 ingress protection improving longevity, while all critical components within the VSDs and soft starters are covered with an additional anti-corrosive coating. He notes that WEG motors and other electrical equipment have been installed in desalination plants in African countries like Namibia, Algeria and Tunisia, and more widely in countries globally including Saudi Arabia, Bahrain, United Arab Emirates, Chile, Peru, Australia and Spain. Zest WEG, +27 (0) 11 723 6000, info@zestweg.com, www.zestweg.com

Pipes, Pumps and Valves Africa - Jan/Feb 2022

9-12 May 2022 | Cape Town, South Africa

Reconnect with the mining industry in-person Mining Indaba will be back in Cape Town in 2022 Get ready to return to Cape Town as the industry unites to fuel transformations and collaborations. The must attend inperson event will bring together visionaries and innovators and connect you with your next business opportunity.

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ADVERTORIAL

The rotary imperative AMD-Rotolok’s managing director, Theo Sherman, outlines the company’s exceptional annual performance and says the company is in the enviable position of products selling themselves. It’s extremely difficult to recognize an economic downswing when your business is experiencing it’s best year in its 51 – year history. AMD Rotolok, manufacturer and distributor of rotary valves, screw-conveyors, knife-gates, bucket elevators and other products, has weathered endless cycles of high and low commodity prices during this period from it’s base in South Africa., which has been plagued by low growth and political uncertainty, compounded by mining sector that is challenged by hesitant investors. Theo Sherman, AMD-Rotolok’s Managing Director says that the same isn’t necessarily true for the rest of the continent. “What remains a constant, is that Africa’s substantial mineral resource endowment will always have a need for good products that enable seamless production.” It is this very need that is fueling the surge of new competitors in AMD-Rotolok’s market, particularly from Asia, but Sherman isn’t overly concerned. “Mine buyers realise very quickly that cheaper products don’t last, and the suppliers of those can’t provide the supporting service they should. The result is a need to replace a part regularly, which strains budgets and compromises overall operations.” This is AMD-Rotolok’s advantage, and has been since inception, giving credence to Sherman’s statement that AMD-Rotolok products sells themselves. “Our reputation precedes us,” he says. “Beyond the trust in our products, we have experience in understanding the entire mining process because we are hands-on. We visit sites, we communicate with other contractors, we innovate, we are adaptable, and our products endure.” Africa more than any other continent, requires robust

machinery so some 60 percent of our manufacture is motivated by customer needs. These are strategies that provide a degree of comfort in tough market conditions but strategies are only valid if proven effective. Proof for AMD-Rotolok comes from a variety of sources. Pulling the file on a customer that required a replacement but still operational rotary valve, one of AMD’s flagship products, Sherman indicates that the valve had been bought in 1976. In yet another instance a mine in Kimberley, which had purchased rotary valves some years ago but never installed, had rushed in outdoor storage. We cleaned and serviced those, replaced bearings, and the units were restored to a new condition. “These instances shows that ironically we are kind of shooting ourselves in the foot, but it validates our success and proves quality.” It is exceptionally rare for an AMD-Rotolok’s product to fail or be returned, Sherman can’t recall this happening in his five years with the organization, whose mother company in the UK drives the approach the local company takes towards providing total solutions for bulk materials handling. Innovation is the essence of AMD-Rotolok’s spirit, and plays out in the development of new, and enhancement of, it’s products, and in being able to design to customer specification. “Africa more than any other continent, requires robust machinery so some 60 percent of pour manufacture is motivated by customer needs. Another aspect of ensuring durability for this market is maintenance. We recently introduced easy lock-and-clear systems instead of the cumbersome disassembly that was required when cleaning the internals of rotary’s. “It’s also all about tolerance, which is dependent on the output of the products, and AMD-Rotolok works to the finest tolerance levels to ensure functionality.” A coal mine in Belfast, Mpumalanga that supplies coal to Exxaro is experiencing just how crucial tolerance levels are. X10VRN500 Clamshell Gates Rotolok units, each weighing 1.7 tons, were installed 8m above ground, supporting some 30 000-ton bins, which the AMD Rotolok units are required to open and close during the coal diversion process. Tolerance also means being able to withstand the conditions specific to each region, and the moisture levels the products are exposed to.

AMD-Rotolok’s managing director, Theo Sherman 24

Pipes, Pumps and Valves Africa - Jan/Feb 2022

What the Belfast mine and other mineral developers across the continent among them Botswana, Tanzania, the Congo, Zambia, and Zimbabwe, have come to value is AMD Rotolok accurate assembly and site inspection, which is generally above and beyond the usual standards in the industry. “For example, we try to be present with

ADVERTORIAL

all installations, especially those in rural areas. This is important because during installation we interact with other contractors such as cylinder and pneumatic providers, and can therefore make immediate adjustments if required. This demonstrates the extent to which we take responsibility for our products.” Says Sherman. That responsibility also falls to one person in the AMDRotolok organization. “We endorse a one-on-one relationship so that clients are not exposed to multiple contacts within our setup. In this way there is a personal touch that really is a differentiator in the market.” Sherman takes a similar approach with the AMD-Rotolok staff. “We actually try to create jobs where we see an individual has a need. We account for the increases and expenses that our staff are under pressure to meet in their daily lives. This promotes loyalty and improves business because they work in positions that tap into, and hone, their skills.” There’s also a social development element, given that AMD-Rotolok believes in using and training locals to understand how to undertake basic maintenance such as hook up or bolt on work. On-the-job training, says Sherman, was part of the company securing its milestone BEE-certification, which has opened a few new doors, adding to the already illustratious client list. There are some big names on the AMD-Rotolok’s dance card: DRA, Exxaro, Sasol, Eskom, Glencore, for example, and that’s just the mining sector. The organization has recently diversified into the food industry with the advances it has made in stainless steel. There are also divisions catering for the chemical, feed processing, pharmaceutrical, plastics and power energy markets. The AMD-product range is comprehensive, ranging from rotary and other valves, airlock, seal, diverters, slide gates dampers, lump breakers, bulk loaders, backfill units, couplers, and rotospeed switches, all of which are either standard or made-to-spec using advanced machinery and batch production techniques that speak to efficiency savings. “Our volume production methods mean that our products are, contrary to popular belief, very affordable, especially over time .We also prefer not to have distributorship, nor partnerships because of the strict quality control standards we present and the responsibility we take for a complete beginning-to-end solution.”

This sometimes means fixing what a client has fixed “If a customer decides to do a repair themselves, it’s invariably mess. It’s far better to have us undertake the repair, either on site or at our manufacturing facility so that we can guarantee efficacy, quality and durability. We don’t make mistakes with our products” Sherman relates how Eskom, South Africa’s national energy suppliers, has its knife-gates maintained by AMD-Rotolok to the extent that it receives the same guarantee as if it was a new unit. “You can’t see the difference between the used and the new units, “he says“ This is also important in the current economy when service providers are under pressure to ensure downtime is minimised.” This is the same climate that is manifesting in job losse and projects put on hold. Which Sherman expresses sympathy for, yet remains positives “Our incoming orders have not been seriously affected, and I know there’s a lot of money out there but budget are just not being spent ‘We are still doing R1-million plus deals and our brand has just expanded into a production facility in India to cater for the Asian market, particularly Singapore. All the effort we have put in over the past five decades has paid off: our products sell themselves”

Tel: +27 (0) 11 674-1166/7, Cell: +27 (0) 82 411-8658, Fax: +27 (0) 11 674-4372 theo.sherman@amd-rotolok.co.za, www.amdrotolok.co.za

Pipes, Pumps and Valves Africa - Jan/Feb 2022

Afromix – unique, dynamic and innovative leaders in the mixing and pumping industries

PUMPS

AFROMIX, a division of AFX Holdings, is a leading manufacturer of agitators and peristaltic pumps headquartered in Southern Africa. With more than 30 years’ experience and over 5 000 major installations to its credit, AFROMIX has supplied some of the largest agitators and peristaltic pumps in the world. This in part is due to the assistance from the South African Capital Equipment Export Council (SACEEC), which awarded Afromix with Exporter of the Year Africa award, held in December 2021. Being a member of SACEEC has cemented lasting business relationships with quite a few foreign companies we are supplying to. Their facilitation of National Pavilions and Exhibitions greatly assists members to access global markets. SACEEC’s relationship with the South African Department of Trade, Industry and Competition has afforded Afromix many opportunities to participate in Outward Selling and Inward Buying Missions. These have proved invaluable to secure foreign business. We are always looking at new markets and have found that there is a lot of demand in the Middle Eastern countries as well as in Asia. These markets tend to be saturated with off shelf products, which in most cases cannot meet the client’s application requirements. Therefore, a bespoke product with our vast experience and knowledge is sought after. Fortunately, we are famous for our range of superior products, which has been utilised in most industries, and all thanks to this experience and familiarity, we can offer sustainable solutions to any plant problems. AFROMIX prides itself in offering the highest quality products on the market at fair and competitive pricing to our clients. This is only possible through continuous improvement of our employees skill-set and processes. Our product speaks for itself, but where it differs is that we always put the client and project first. Unparalleled service, we always take a hands-on approach. We do not just supply a product we are in the trenches with our clients!

Pipes, Pumps and Valves Africa - Jan/Feb 2022

We offer quick solutions because we are the only agitator supplier with its own inhouse manufacturing facility in South Africa. We are in the process of finalising our SABS local content verification and we are committed to increase our local content to 100% on projects where possible. Our company has grown from strength to strength, even amidst the Covid pandemic, due to key role players, such as SACEEC, in South Africa’s manufacturing industry. AFROMIX, +27 (0) 11 397 6911, sales@afromix.co.za, www.afromix.co.za

LET’S TREAT

DRINKING

WATER WITH THE POWER

OF OXELIA.

Oxelia™ Oxidation-Enhanced Biologically Active Filtration. Drinking water has a new ally. The Oxelia system breaks down and removes the most difficult contaminants, including taste- and odor-causing geosmin, 2-MIB, and contaminants of emerging concern (CECs). With a multi-barrier defense of oxidation plus filtration, the Oxelia system destroys recalcitrant organic micropollutants, disinfects, removes pathogens, eliminates oxidation and disinfection byproducts, and produces water with high biostability. And since different contaminants require different solutions, the Oxelia system has several options for a design based on your specific needs.

Consider it pumped with the WEDA from Atlas Copco

PUMPS

Featuring unrivalled performance, efficiency, reliability and flexibility, Atlas Copco’s WEDA electric submersible pump series offers perfect dewatering solutions for the construction, industrial, agricultural, emergency and maintenance sectors. “The popularity of these rugged and compact pumps amongst our customers urged Atlas Copco to extend the WEDA portfolio and to introduce a number of feature enhancements,” says David Stanford, Business Line Manager of Portable Products at Atlas Copco Power Technique. “In addition to the introduction of slurry pumps, the WEDA L series, the engineering group also expanded the WEDA D drainage pump and WEDA S sludge pump ranges. The WEDA series boast flow rates of up to 16,500l/min with power ratings up to 54kW and can manage water with specific gravity up to 1700kg/m3.” WEDA D drainage pumps are designed to pump water containing abrasive solids of 4 to 12mm dia. Featuring a topdischarge function, these drainage pumps are capable of handling water with specific gravity to 1100kg/m3. For optimum flexibility, discharges can be mounted vertically or sideways as required. WEDA D pumps are ideal for an extensive range of applications such as ground and raw water removal, excavation and open pit dewatering as well as storm water and flood control. Highly suited to tough conditions, the WEDA S range is

Pipes, Pumps and Valves Africa - Jan/Feb 2022

capable of pumping sludge, light slurry and muddy water containing abrasive and larger solids of 25 to 50mm dia. These pumps can handle the dewatering of liquid sludge, thick, soft, wet mud or other similar viscous mixtures of liquids and solids typically resulting from an industrial or refining process. With a bottom side discharging capability for the handling of water with specific gravity to 1400kg/m3 , WEDA S pumps are ideal for tank clean-out, agricultural product wash-down pits and trench and pond cleaning. The WEDA L slurry pumps are designed for the dewatering of abrasive media with a high solid content typically found in quarrying, mining or dredging applications. These pumps efficiently manage semi-liquid slurry mixtures usually made of fine particles of manure, cement or coal, and water. The large apertures of the rugged WEDA L series facilitate the handling of slurry containing solids of 20 to 60mm dia. while the high-efficiency highchrome agitator facilitates the lifting of settled solids. Also using a bottom side discharge, WEDA L pumps manage water of specific gravity up to 1700kg/m3. All pumps in the drainage (WEDA D) and slurry (WEDA S)

“Atlas Copco has focused on not only optimising the performance of the WEDA series but also on making the pumps lighter, increasing their electrical safety, improving the seal design and simplifying installation and maintenance,” notes Stanford. The more compact design, coupled with a 20% lower weight compared to similar products, simplify handling and transportation, making these pumps particularly suited for the rental market. The pumps’ light weight is due to the use of unique aluminium alloy which also offers strength and corrosion resistance for seamless and reliable operation in harsh environments across all applications. These robust pumps feature rugged components, class F motors and class H electric motor insulation. The starter and motor protection system are built in, and a double silicon carbide mechanical seal prevents the ingress of contaminants. The pumps include adjustable wearresistant rubber diffusors, hardened high-chrome (55HRC) impellers and heavy-duty bearings (that can withstand shocks and overloads) which further enhance pump durability. Maintenance on these pumps is quick and hassle-free, keeping uptime to the max. External oil inspection and grease- filling plugs are easy to access, and all pumps

Bilfinger Intervalve Africa (Pty) Ltd. is one of the enterprises in Bilfinger Power Africa (Pty) Ltd., the South African subsidiary of German based Bilfinger SE. For years, we have been adding value to the power, mining, paper pulping and broader industry through comprehensive valve supply, valve maintenance and heat treatment solutions. www.intervalve.bilfinger.com

PUMPS

lve

ranges are available with WEDA+ features which include phase failure protection, rotation control, thermal switches and a 20m cable with phase shifter plug for all 3 phase pumps. The WEDA+ features are also available as an option on the L range.

conveniently contain seal types appropriate to their size. Atlas Copco supports WEDA pump customers across the southern African region through readily available products, parts and spares backed by exceptional service delivery from its team of skilled service technicians and strategic dealer network. Atlas Copco Group, +27 (0) 11 821 9800, david.stanford@atlascopco.com, www.atlascopco.com/en-za

WE MAKE VALVE SUPPLY WORK

7823 Bilfinger Intervalve - Pipes, Pumps & Valves Africa advert 130(h) x 180mm(w) Valves - Pr1.indd 1

2021/02/17 4:10 PM

Pipes, Pumps and Valves Africa - Jan/Feb 2022

VEGA’s simple radar formula for better processes

PUMPS

With VEGAPULS 6X, VEGA radar “thinks” in a new way. The result: A new radar sensor that can measure in every conceivable level application. The times when users had to choose the right level measuring instrument from a multitude of different ones are now history. Traditionally, the search for a suitable radar level sensor begins by asking which frequency would be best for the specific application, or by determining the properties of the medium, the temperature ranges involved and the process fittings required. Until now, choosing an instrument was a laborious task, but VEGA is now transforming the process completely with its new VEGAPULS 6X. “Ultimately, it’s not the sensor that counts, but what the users can achieve with it in their individual processes,” says Florian Burgert, who, as a product manager, has been closely involved in product development from the very beginning. “Just knowing that they’ve chosen the best possible measurement solution and that they’ll reach their goal faster with it makes a big difference in their everyday operations.” Over 1 million instruments in use worldwide The success story of today’s world market leader in radar level measurement began 30 years ago, and in the meantime, VEGA’s sensors have optimized millions of industrial processes. The story includes milestones such as the world’s first two-wire radar instrument and the first 80-GHz radar sensor for liquids on the market. Behind

this success are the many people who share a common passion: “At VEGA we don’t do a hundred different things, we concentrate on what we do best: radar,” says product manager Jürgen Skowaisa, speaking for all of them. All-round protection The new VEGAPULS 6X offers the best that is technically feasible today: a self-diagnosis sys-tem that immediately detects damage or interference that ensures significantly higher availabil-ity and safety, it has new radar-chip technology, with expanded application possibilities and simpler operation. In addition to SIL certification, the matter of cybersecurity has also been fully taken into account: Compliance with security standard IEC 624434-2, which specifies the strictest requirements for secure communication and access control. The value lies in the best application Level sensors should make it easier for users to monitor their industrial processes. The ultimate purpose of VEGAPULS 6X is: maximum simplification. It is the one sensor that can handle any application. In the future, the customer will no longer have to worry about the technology, fre-quency or instrument version. Even setup and commissioning has been reduced to a minimum, requiring now just a few clicks and basic application parameters. In many cases, all application-specific settings can be made in VEGAPULS 6X before it leaves the factory. Mount, connect, done: It couldn’t get any simpler. VEGA Controls SA (Pty) Ltd, +27 (0) 11 795 3249, info.za@vega.com, www.vega.com

Pipes, Pumps and Valves Africa - Jan/Feb 2022

RADAR IS THE BETTER

ULTRASONIC

Compact 80 GHz level sensor with in-head display

All advantages of the radar technology:

www.vega.com/vegapuls

Merits of mechanical and digital options in dosing pumps

VALVES

Dosing pumps play an important role in many industries from mining and wastewater treatment to pharmaceuticals and food production – and are available in a growing range of mechanical and digital options. “Choosing the right pump starts with understanding the respective areas where mechanical and digital dosing pumps excel,” says Tshephang Sithole, sales engineer – water treatment at global pump specialist Grundfos. “While high flows and high pressures might be prioritised in some applications, for instance, other users need to focus on accuracy or remote-control functionality.” Sithole points out that many industrial applications such as water treatment plants or mining will tend to need a robust solution that delivers large volumes of water at pressures of up to 150 bar. There are still certain automatic functions, though, depending on the configuration. “While Grundfos’s basic range of mechanical dosing pumps requires an operator for most functions, our analogue relay (AR) range has additional features such as an automatic stop when the chemicals are depleted,” he says. “Furthermore, the D-range has servomotors to automatically set the stroke length, thereby adjusting the dosing flow.” This is done with a 4-20 mA signal that can be remotely transmitted from a SCADA system or other digital input. Variable speed drives (VSDs) can also be fitted to these pumps, and the frequency can be adjusted up or down to vary the dose. Digital dosing pumps, by contrast, come with a range of features that make them most suitable for automated

Pipes, Pumps and Valves Africa - Jan/Feb 2022

plants or where higher levels of monitoring and control are required, including remote functions. Grundfos has been a pioneer of digital dosing for over 20 years. “Automation functions are particularly valuable for companies who have plants in different parts of the country,” he says. “If load shedding leads a pump to trip, for instance, an alarm will notify the user, and they can remotely reset and restart the operation.” They are also preferred where the accuracy of dosing quantities is prioritised, or where dosing volumes are very small. Some digital dosing pumps boast high turn-down ratios as low as 1:3,000, and can deliver pressures of down to 0,002 bar. “They can even pick up leaks in the line, and will help prevent liquid losses by automatically alerting the operator,” he says. The automatic de-aeration function is another valuable element in advanced digital dosing pumps, allowing them to detect and remove bubbles from a line. This is important as bubbles will impair the accuracy of dosing. Grundfos South Africa (PTY) Ltd, +27 (0) 10 248 6000, info_za@grundfos.com, www.grundfos.com

How quality butterfly valves can save your company a lot of money Regardless of the industry, saving money and maximizing investments are imperative. Our current economic climate stresses this even more. However, too often decision makers cut costs by opting for cheap products and are then surprised by the extensive maintenance/replacement costs that come later. Remember, cheap is not always frugal.

“Buy a cheap butterfly valve and replace it often”. “We import our valves to save you money.” “Don’t bother maintaining your valves, just let us sell you more” Have you been told this before? These are just some of the ways distributors can trap you into buying a valve of inferior quality. A valve that will cost you more in the long run. On a superficial level, butterfly valves perform the same function no matter where you get it from. So do watches. You could buy a cheap watch and replace it often when wear and tear occur. You might actually do this in your regular life. However, the savvy consumer would realize that that product is of a low quality AND would cost you more in the long run. Sticking with the watches analogy, consider a high-quality timepiece that lasted much longer, offered skilled repair services for regular

maintenance and was locally made. These watches would initially cost more but save you a lot of money in the long run. Intrinsic components of a quality butterfly valve • Not rubber lined. Butterfly valves with stainless steel lining last MUCH longer and are more durable than the cheaper rubber option. • In-house seal kit offered. A seal kit is used for when a seal wears out. • Self-energized. This means you do not have to replace the whole valve. Paltech’s Pal-TTM Butterfly Valve offers all of this and much more. The extrinsic value of our valves allows our clients to be a part of a company that cares for the environment and community.

VALVES

From a consumer’s perspective, a purchase decision can be considered a trade-off between perceived cost and perceived quality … both of which are subjective concepts. The valve industry knows this all too well. Some valve manufacturers market to the cost-conscious consumer, seeking to take advantage of their ignorance of quality.

Extrinsic components of a quality butterfly valve • Lower quality providers would require you to replace the entire valve. Not only does this add to the waste going into the environment, but it also increases your plant’s downtime and halts production. Our valves can last you many years and the only thing you would need to replace is the seal, only the seal. This reduces downtime and thus increases production. • The environmental implications of not replacing your shit anymore are the dream of any “green” company. • You will also have fewer headaches and worries, knowing that the valves we provide won’t breakdown on them out of nowhere. • We are also a Black Owned local South African manufacturer. Giving you the opportunity to support a community-involved business headed by African leaders in the valve industry. In conclusion Investing in quality butterfly valves can save your plant /company a lot of money. Purchasing decisions are influenced by perceived cost and quality. The quality of a valve goes far beyond what the price presents. Knowing both the intrinsic and extrinsic values of a valve help you make a better-informed purchasing decision, one that can be cost-effective and boost your company profile by associating with an excellent valve manufacturer/ distributor like Paltech. Paltech, +27 (0) 12 653 1156, sales@paltech.co.za, www.paltech.co.za Pipes, Pumps and Valves Africa - Jan/Feb 2022

How ARI designs air-valves for the lowest possible total cost of ownership VALVES

We have a professional responsibility to consider the total cost of ownership of equipment we specify. Sometimes the lowest up-front price ends up being the most expensive. This is especially true for air valves. Air valves make up a tiny part of the capital cost of a pipeline but they’re often the cause of significant ongoing repair and maintenance expenses. Most air valves are designed in a way that makes high maintenance costs inevitable: • The flexible seals are under high load – as much as 5 tons for a 200mm valve in a 16bar line. • The seals are not submerged. They’re exposed to high temperatures. And, if the water is treated, they’re exposed to the chlorine/air mix. This causes the seals to perish. • The float deforms after sitting in the closed position for long periods under this high force. As a result, many air valves start leaking soon after installation. And, they incur high repair and maintenance costs forever after. I’ve worked with pipeline operators who have had to replace every seal every year or risk flooded valve chambers, corrosion and even catastrophic pipeline failure. Some years ago ARI, the largest air valve manufacturer in the world, set out to design an air valve that wouldn’t leak. It would keep working even in dirty water and any maintenance would be quick and cheap. The resulting air valve is the only one on the market that offers a 10-year warranty against seal leakages. The key to its success is the design of the main seal. It has a bronze ring to resist the load from water pressure. This ensures that the rubber part of the seal doesn’t distort over time. And, the rubber part of the seal is always submerged. It isn’t exposed to high temperatures or corrosive chlorine 34

Pipes, Pumps and Valves Africa - Jan/Feb 2022

gas so it lasts for many years. Air valves have two orifices (holes) that let the air out: • During filling or a sudden stop in pumping causing fast reverse flow, the air valve switches to allow less air to escape through the large orifice. This slows down reverser flow and prevents water hammer. • During normal operation the small orifice lets out tiny air bubbles trapped in the liquid. This prevents air pockets from forming which reduce pumping efficiency. Most air valves have a tiny small orifice (0.5mm – 2mm diameter). It gets clogged. Once it’s clogged the air valve doesn’t allow air out during normal operation. You can test this by opening the bleed valve at the bottom of the air valve. If air comes out, the air valve isn’t working. The rolling seal design allows ARI air valves to have much bigger small orifices (about 12 times the size of competing air valves). There is much less chance of it getting clogged and it’s big enough to be self-cleaning. And, if something as large as say, a twig, got caught between the orifice and the seal it can be cleared in 2 minutes without shutting the pipeline down. If you’re currently planning a pipeline project or thinking of replacing air valves please contact me. I’ll help you calculate the total cost of ownership of various makes of air valves. Total Valve Solutions, +27 (0) 11 452 6514, peter@ultravalves.co.za, www.ultravalves.co.za

Plug valve speed repair For one of the largest manufacturers of nutritional supplements for animal feed worldwide, who is using AZ plug valves, we conducted a speed repair.

VALVES

Like every 5 years, the ammonia line had to be serviced, as did the first half of the valves involved: a total of 23 valves and 21 actuators. The catch: the repair had to be completed in under 10 days, including pickup and delivery. Thanks to the active commitment of our international team, led by Benjamin Selosse, the repaired valves were back in the factory three days before the deadline. The customer is impressed with our work and was able to complete the maintenance on time. AZ Armaturen South Africa Pty Ltd, +27 (0) 11 397 3665, sales@az-armaturen.co.za, www.az-armaturen.co.za

Pipes, Pumps and Valves Africa - Jan/Feb 2022

Vesconite’s lead-free solutions to reduce lead exposures

BEARINGS

Vesconite Bearings hopes to be part of the global programme to reduce lead exposure from drinking water. It produces products resistant to corrosion-combatting chemicals (which are necessary to reduce lead leaching into the water system). It also provides lead-free bearing materials for pumps and water systems. Fuel and paint were the most important sources of lead exposure in many countries. But, with lead removed or likely to be removed from these sources, drinking water has become an integral source of controllable lead exposure. Global governments are increasingly drawing attention to lead in water systems and setting guidelines and regulations for control. A staggered, multifaceted approach towards getting rid of lead in water systems is required due to the legacy use of lead in water systems. For governments, utilities and households, preventing exposure to lead can mean: • Using chemical corrosion measures to reduce the level of lead in drinking water; • Flushing pipework where water has been standing for long periods in a lead pipe; • Replacing old lead service lines; and • Ensuring that all new pipes and fittings are lead-free and that the solder is of a lead-free variety. Chemical-corrosion dosing For many countries, lead-service-line replacement is prohibitive because of the cost. Such is the case with the UK, for instance, where the cost of replacing lead piping has been estimated at between £8-10 billion.1 Lead service lines and components need to be replaced in the long term, but the short- and medium-term strategy is to reduce the likelihood of lead dissolving in the system by introducing a corrosion inhibitor, most commonly orthophosphate.

Vesconite can play a role in a corrosion-reduction strategy to combat lead exposure. Its bearing products are resistant to most chemicals and will not degrade in water systems. At the same time, Vesconite has the benefit of being leadfree and will not introduce additional lead into the system. Orthophosphates and Vesconite products work particularly well where organic material is removed from water systems, since orthophosphates may increase bacterial growth on some plastics. Installation and repair of water systems Some countries have introduced legislation affecting the installation and repair of water utilities. This ensures that no additional lead is introduced into the water system and that there is a reduction in the quantity of lead in the system. Such is the case with the US’s Safe Drinking Water Act which prohibits the “use of any pipe, any pipe or plumbing fitting or fixture, any solder, or any flux, after June 1986, in the installation or repair of (i) any public water system; or (ii) any plumbing in a residential or non-residential facility providing water for human consumption, that is not leadfree”.2 For utilities implementing this policy, Vesconite’s Hilube bearing material has NSF61 approval for use in potable water applications. This certification should provide comfort and assurance to utilities that need to abide by the US’s Environmental Protection Agency’s (EPA’s) final regulation on the “Use of Lead-Free Pipes, Fittings, Fixtures, Solder, and Flux for Drinking Water”. The September 2020 regulation requires that manufacturers and importers of components used in drinking water systems certify their products have met the requirements of the regulation within three years of the final rule publication date.3 Replacement of lead service lines and components Strategies on whether lead service lines and lead components must be replaced entirely or partially differ between and within countries. For instance, Southern Germany prohibited lead pipes more than 100 years ago, while Northern Germany, which continued to use lead piping into the 1970s, is currently focusing on getting rid of lead service lines.4 There seems to be a worldwide groundswell of interest in replacing lead piping since piping is the main cause of lead contamination in water systems. Other parts of the water system, while they may not be the priority source of lead exposure, are also not being ignored. Solder, fittings (including alloy fittings with high lead content) and service

Pipes, Pumps and Valves Africa - Jan/Feb 2022

connections, contribute to lead in tap water and remain a concern for the World Health Organization, as indicated in its Guidelines for Drinking-water Quality. Lead-containing bronze, for instance, has been seen as problematic for the bearings and impellers contained in pumps and water systems. Alloys such as zinc, tin or aluminium have sometimes replaced lead - this replacement will benefit the health of countries that introduce such products but these alloys tend to be adversely affected by chlorine dosing over an extended time.5 However, should lead-free, chlorine resistant, long-lasting Vesconite bearing materials replace these materials, they would lower maintenance time and costs while at the same time reducing lead exposure.

Vesconite, +27 (0) 11 616 1111, vesconite@vesconite.com, www.vesconite.com

www.sam eng.co.za

6. United States Environmental Protection Agency, Basic Information about Lead in Drinking Water, https://www.epa.gov/ground-water-and-drinkingwater/basic-information-about-lead-drinking-water

CS X

MP PU

5. Dashner, B, 2011, Zero Lead Zone in Water Quality Products,https://www.wqpmag.com/zero-lead-zone

CP S MP PU

4. “Germany aims to rid drinking water of lead”. Where I come from - Kampaqne (DW) The people who make DW unique Where I come from - DW journalists share their personal stories. Deutsche Welle. 12 March 2013. Retrieved 13 October 2019.

CP 7

MP PU

3. United States Environmental Protection Agency, Use of Lead Free Pipes, Fittings, Fixtures, Solder, and Flux for Drinking Water, Final “Lead Free” Rule, https:// www.epa.gov/sdwa/use-lead-free-pipes-fittingsfixtures-solder-and-flux-drinking-water

• Horizontal Split Water Pumps • CPX/HMX Type • SP Type • Vertical Turbine • CPW Type • CSR Type

MP PU

2. United States Environmental Protection Agency, Use of Lead Free Pipes, Fittings, Fixtures, Solder, and Flux for Drinking Water, Final “Lead Free” Rule, https:// www.epa.gov/sdwa/use-lead-free-pipes-fittingsfixtures-solder-and-flux-drinking-water

E DL N

Notes: 1. Chartered Institution of Water and Environmental Management, Policy Position Paper, Lead in Drinking Water, https://www.ciwem.org/assets/pdf/Policy/ Policy%20Position%20Statement/Lead-in-drinkingwater.pdf

VERTICAL SP I

Our range of pump products include: • CP/CPO Series • CP7 Type • Vertical Spindle/ Cantilever Pump • HM Process Pumps • CSW Type • CSY Type • Process Pumps

P -C

There are no safe levels of lead, say experts. This statement is notably true for children who can experience behaviour and learning problems, lower IQ and hyperactivity, slowed growth, hearing problems, anaemia and, in rare cases, seizures, comas or death with even low levels of lead in the blood.6

Lead in drinking water Different countries have set the allowable quantities of lead in drinking water. However, the lower the levels the better.

Over 25 years of experience in designing and manufacturing a complete range of centrifugal pumps for a broad spectrum CSO/CP of industrial, process and general applications.

Providing customised pump solutions to various industries

Pump design techniques that ensure our pumps are manufactured to last

High performance - high quality products, excellent service

Alloys to suit all applications Proud Manufacturers of SAMCO® Pumps

Pipes, Pumps and Valves Africa - Jan/Feb 2022

Building on Xylem’s green finance evolution

WATER

As part of Xylem’s commitment to advancing sustainability, we are adopting innovative green finance practices, which place sustainability further at the core of how our company creates economic and social value. In our most recent green finance development, Goldman Sachs Transaction Banking Services has launched a new ESG (Environmental, Social and Governance) linked demand deposit account, with Xylem as its anchor client. Here, Sandy Rowland, Xylem’s Chief Financial Officer, shares her perspective on this initiative and Xylem’s broader green finance agenda. What exactly is an ESG-linked demand deposit account? This new Goldman Sachs Transaction Banking (TxB) is a first-of-its-kind product that links the yield or amount of interest that Xylem earns on our deposits to performance against our company’s ESG targets. This means that as we make progress against our sustainability strategies, we stand to earn higher returns on our deposits with Goldman. This strongly aligns with our view at Xylem that sustainability should be at the heart of both our business strategy and our financing approach. Our business is innovating in technologies that deliver more sustainable outcomes for our customers and other stakeholders. Banking products that recognize and reward ESG achievement are a welcome step forward in managing financing and sustainability interdependently. This account does that while delivering the flexibility we need to manage liquidity and payments. How did the Goldman product come about? This was a cross-functional effort led jointly by our Treasury and Sustainability teams including our Treasurer and our VP of Sustainability. The process began with open idea generation sessions, about what something like this might

Pipes, Pumps and Valves Africa - Jan/Feb 2022

look like, and how it would work. Ultimately, working across the ESG groups in both Xylem and Goldman, we agreed on company-specific metrics aligned to our 2025 Sustainability Goals, and on the mechanism that will deliver a pricing benefit when we achieve our annual metrics. The ESG-linked deposit account builds on Xylem’s suite of green financing tools. Talk to us about the other tools in the toolbox. As a company dedicated to solving water, we see a unique opportunity – and responsibility – to show leadership on sustainability. This latest tool builds on several green finance initiatives by Xylem to more closely align our business and sustainability strategies. We started a few years ago, with a first-of-its-kind credit revolver – a category of financing where the price of borrowing was linked to our sustainability performance. Then, in 2020, we were the first US industrial company to issue a $1 billion portfolio green bond, the proceeds of which were allocated to projects that improve water security and advance sustainability. The bond both expanded liquidity at attractive rates and provided funding capacity for green projects that are important to our customers, employees, shareholders and communities. Now, the deposit account is another way of linking our sustainability and finance strategies. We’re really pleased that, like our previous green financing initiatives, this work with Goldman on the deposit account is a first of its kind. And once again, we’ve got great partners willing to

innovate with us at the nexus of finance and sustainability. We’ll continue to explore new and innovative ways to further entwine our sustainability and business strategy. You mentioned these green finance tools are linked to Xylem’s 2025 Sustainability Goals. Tell us more about the goals and progress to date. We launched a comprehensive set of 2025 Sustainability Goals in 2019, with eight goals particularly critical to advancing progress on the world’s most urgent water challenges.

And despite the challenges of the global COVID-19 pandemic, 2020 was a year of progress. Among our broader sustainability impacts were: enabling water operators to reduce their carbon footprint by 0.7 million metric tons of CO2, preventing 1.4B m3 of polluted water from flooding communities or entering local waterways, and enabling the reuse of 4.3B m3 of water, or more than 1 trillion gallons. What is next for Xylem? We’ll continue to solve the world’s biggest water challenges. That’s our mission and our business and that’s why sustainability is at the core of who we are and what we do. Working with customers to advance water stewardship

WATER

These goals focus our efforts to help our customers solve water scarcity; enhance water systems resilience to climate change and water affordability issues; enable the continued sustainability of our company; and empower communities. The pricing of our Goldman demand deposit account is linked to achievement of our goal to recycle 100% of process water at our 22 major facilities.

from utilities to industrial and commercial operators of water systems – puts us in a unique position to create economic and social value in tandem. We’ll continue to explore routes to bring stakeholders together to collaborate towards a more sustainable future for all, with our green finance framework as a core pillar of this effort. Xylem, makingwaves@xyleminc.com, www.xylem.com

Engineered Solutions for Valve Refurbishment.

UNIT NO 1, 33 APEX ROAD WEST, APEX, BENONI TEL: +27 11 421 8170 FAX: +27 11 421 8166 / +27 86 573 5862 EMAIL: INFO@VALVEHOSPITAL.CO.ZA WEB: WWW.VALVEHOSPITAL.CO.ZA

Pipes, Pumps and Valves Africa - Jan/Feb 2022

7 Questions for creating an effective dewatering system

WATER

As land becomes more expensive, leveraging the real estate below the earth’s surface for parking garages, new utilities and even meeting rooms has become a reality. And, as any experienced contractor knows, excavating in these spaces often turns up something other than soil—namely, groundwater. All construction foundations and structures below the water table will require some type of dewatering. Contractors or engineering firms often assume the dewatering system used on previous projects (usually a simple wellpoint system) will work on all projects. But looks can be deceiving. Companies may underestimate the amount of water they will encounter or fail to realize where it might come from. The risks of inadequate dewatering When dewatering is not considered or the wrong dewatering method is chosen, the results can be costly in terms of time, money, reputation, and safety. If the dewatering system proves inadequate, work may halt while additional pumps are installed, and every day work does not get done, users lose money and fall behind schedule. The costs can mount quickly. To meet the project deadline and avoid penalties, companies may need to rent additional excavators, loaders, and dump trucks. There may be extra fuel costs at a time when fuel prices are skyrocketing, and companies may need to hire additional crews, which on large projects can run $25,000 (R380 597.50) a day or more. Water from the ground and surface due to rain events can damage construction equipment and reduce productivity. In the worst-case scenario, water could end up destroying work that has been performed. Wet or muddy jobsites also pose safety issues for crews, especially when water

Pipes, Pumps and Valves Africa - Jan/Feb 2022

compromises the stability of slopes. Planning for all possibilities Choosing the right dewatering method requires considering the current conditions as well as potential future conditions. The soil types, excavation depth and buildings and infrastructure surrounding the site can influence a project. Taking a detailed soil boring to understand the soil components and the strata (including where the permeable layers are and the depth and formation of each layer) and performing a pump test are critical to determining the best method. It is also important to anticipate weather events. For example, a contractor was putting in a sewer line and an engineer specified a single wellpoint system for dewatering, but it was not robust enough to control flooding when it rained. So, an equipment rental company created a backup dewatering system by installing wellpoints on both sides of the excavation and additional sump pumps to handle the surface water. That dried out the area enough for the contractor to work but subcontractors had to work around several additional 6-inch pumps. Had the weather contingencies been anticipated upfront, the problem might have been avoided. For waterfront projects, factoring in the tidal system and water fluctuation is essential. When a contractor in Mississippi was working on a drop-in structure, its engineers also recommended a wellpoint system. Then the

Questions to ask Other considerations factor into creating an effective dewatering plan: • Does the site show any signs of soil erosion or instability? • How far below the surface is the water table? • Should the water level be lowered in advance of excavation? (This may be necessary if the subgrade is a uniform, fine sand stratum.) • Is the subgrade under artesian pressure that could cause uplift or soften the subgrade soil under a nearby structure or pipeline? • Are there nearby buildings or structures that could be impacted and how will they be protected? • Will standby equipment be available? •In case continuous dewatering pumping is needed. • What impact will rewatering have on the site and the surroundings when the project is over? The plan should also include details about closing and removing the dewatering systems and following state and local procedures to avoid contaminating groundwater. Beyond Wellpoint Systems Wellpoint dewatering systems are often suited for dewatering when digging shallow foundations and performing utility work and trench work. They are not the solution for every dewatering project, however. Contractors should ask the engineer whether other options may be more appropriate for the site. For example, if the excavation will go below 26 feet or

if there is a need to pump out enormous quantities of groundwater, a deep well system might be best. A sock dewatering system is good for shallow excavations (1.5 M to 4.5 M), especially when needing to limit ground obstructions. Open pumping systems can remove enormous quantities of water quickly. For all dewatering approaches, users will need an installed header system with a flow meter to measure the flow rate. In most cases, a filtration system will be necessary to clear the discharge of any siltation before returning it to the environment. The engineer must choose necessary groundwater filtration systems to avoid penalties for environmental noncompliance.

WATER

Mississippi River rose, and there was so much water the structure broke. The contractor had to tear up the bottom of the structure, remove the concrete they had poured and redo all the work, resulting in additional labour and cost and a three-month delay.

Avoiding Risks An effective dewatering plan and the right dewatering equipment decrease the risk of unnecessary delays while increasing jobsite safety. Choosing and designing a dewatering method is part art and part science. It is based on investigation of the area, including the soil and hydrology. It is also based on experience. A company that has experience with various dewatering methods and has encountered a variety of challenges that can arise is best positioned to recommend and design the right system for the project. The initial investment in a company with dewatering expertise pays off when the site stays dry enough for work to continue despite groundwater situations or ordinary weather conditions. Majid Tavakoli is the director of dewatering technology for United Rentals. Tavakoli earned a Bachelor of Science in mechanical engineering from West Virginia Tech and has 39 years of construction dewatering experience. Tavakoli previously served as vice president of application for Thompson Pump & Manufacturing for 36 years. www.unitedrentals.com

Pipes, Pumps and Valves Africa - Jan/Feb 2022

Let’s stop the perennial flooding by effectively utilising the budget

WATER

The heavy rainfall experienced in the last few weeks that has caused the tragic loss of lives, livelihoods, and property has exposed how climate change is severely affecting Kenya’s weather patterns and why we should catalyse action in 2022 to begin managing the floods menace. First, it is important to try and understand our rainfall pattern. Kenya’s annual rainfall is distributed three-fold. These include the long rainfall season between March and April, the intermediate season (July and August) and the short rainfall season (October up to December). Treasury cabinet secretary Ukur Yatani while reading the national budget in June highlighted that flood mitigation is a key focus in the 2021/2022 fiscal year and that is why the Ministry allocated Ksh38 billion for water and sewerage infrastructure development, Ksh 16.4 billion for water resources management and Ksh 10.8 billion for water storage and flood control. The private sector and development agencies are equally committing to playing their part in flood mitigation as seen by recent investments such as the Ksh7.5 billion Kajulu Water Treatment Plant in Kisumu County. The project, which also involves the French Development Agency, European Investment Bank, and the European Union-Africa Infrastructure Trust Fund as partners, will see the construction of 120km of water supply in the city and its environs. In addition to clean water supply and sanitation, flood mitigation is another benefit of the project. These public and private funds if utilised well will enable controlling the perennial flooding by implementing flood mitigation measures including installing infrastructure to manage storm runoff.

Megapipes Solutions Ltd, a Ruiru-based company, is set to play a pivotal role in managing floods through its offering by manufacturing Weholite HDPE. Weholite pipes use patented technology that has been instrumental in the delivery of quality, affordable and durable piping. Weholite pipes are light and are therefore easily transported to the jobsite and they can be installed quickly, even in poor ground conditions. Apart from direct jobs to the community, staff will be trained to operate cutting edge technology using international best practices, thus ensuring the business becomes a World class manufacturing facility. In fact, the most sophisticated Weholite plant anywhere on the globe. It is also important that we consider using Weholite to construct buried drainage channels with pedestrian walkways on top. This would be a major policy change from the traditional open concrete channels that are prevalent around the country. During heavy rains, these channels cause havoc in urban areas, forcing pedestrians onto the roads, slowing traffic, and causing major accidents with potentially fatal consequences. Beyond piping Weholite can also be used for manufacturing a plethora of water management and storage products, all of which are greatly needed which are greatly needed in urban and rural areas. Megapipes Solutions, sales@megapipes.com, www.megapipes.com

Pipes, Pumps and Valves Africa - Jan/Feb 2022

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Ernest Electro Engineering

Mather & Platt

T: +27 (0) 11 824-4810 F: +27 (0) 11 824-2770 E: info@matherandplatt.com W: www.matherandplatt.com

PRICE PUMPS, for Air Operated Double Diaphragm Pumps for harsh mining applications. A&VT are the SOLE Agents for Southern Africa.

Air & Vacuum Technologies

T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com

AESPUMP SA

T: +27 (0) 17 631-1003 F: +27 (0) 17 631-1002 E: craigg@aespump.co.za W: www.aespump.co.za

APE Pumps

T: +27 (0) 11 824-4810 F: +27 (0) 11 824-2770 E: info@apepumps.co.za W: www.apepumps.co.za

SAM Engineering

T: +27 (0) 11 823-4250 F: +27 (0) 11 823-4943 E: sales@sameng.co.za W: www.sameng.co.za

AESPUMP SA

T: +27 (0) 17 631-1003 F: +27 (0) 17 631-1002 E: craigg@aespump.co.za W: www.aespump.co.za

C.R.I Pumps S.A. (Pty) Ltd

T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri-za@crifluidsystems.com W: www.cripumps.co.za

T: +27 (0) 17 631-1003 F: +27 (0) 17 631-1002 E: craigg@aespump.co.za W: www.aespump.co.za MULTISTAGE PUMPS

Aquaplex Pumps

T: +27 (0) 76 476 4084 E: gavin@aquaplexpumps.co.za

AESPUMP SA

C.R.I Pumps S.A. (Pty) Ltd

T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri-za@crifluidsystems.com W: www.cripumps.co.za

APE Pumps

T: +27 (0) 11 824-4810 F: +27 (0) 11 824-2770 E: info@apepumps.co.za W: www.apepumps.co.za Pipes, Pumps and Valves Africa - Jan/Feb 2022

PUMPS SELF PRIMING PUMPS

Sulzer Pumps (South Africa) (Pty) Ltd T: +27 (0) 11 820 6000 F: +27 (0) 11 820 6206 E: CSSEnquiries@sulzer.com W: www.sulzer.com PINCH PUMPS

VERTICAL SPINDLE PUMPS

KSB (Pty) Ltd C.R.I Pumps S.A. (Pty) Ltd

T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri-za@crifluidsystems.com W: www.cripumps.co.za

T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com VACUUM PUMPS

Walter Meano Engineering VersaFlo VSE Pumps T: +27 (0) 11 873-8620 F: +27 (0) 11 825-1401 E: wme@mweb.co.za W: www.versaflo.co.za

VERTICAL TURBINE PUMPS

LVSA Group (PTY) LTD

T: +27 (0) 11 680 2005 E: sales@lvsa.co.za W: www.lvsagroup.co.za PISTON PUMPS

Integrated Pump Rental

T: +27 (0) 11 894-2906 E: admin@pumprental.co.za W: www.pumprental.co.za SLURRY PUMPS

PRICE PUMPS, for Air Operated Double Diaphragm Pumps for harsh mining applications. A&VT are the SOLE Agents for Southern Africa.

Air & Vacuum Technologies SALES, SPARES AND REPAIRS

T: +27 (0) 861 822-832 +27 (0)11 318 3241/2/3/4 C: +27 (0)82 576 9373 E: burnm@vactech.co.za W: www.vactech.co.za info@vactech.co.za

0861 VACTEC (822 832)

www.vactech.co.za

PRICE PUMPS, for Air Operated Double Diaphragm Pumps for harsh mining applications. A&VT are the SOLE Agents for Southern Africa.

Air & Vacuum Technologies SALES, SPARES AND REPAIRS

Hawk High Pressure Pumps T: +27 (0) 031 274-8555 +27 (0) 10 010-0144 F: +27 (0) 31 205-4332 +27 (0) 11 822-2868 E: sales@hawkpumps.co.za W: www.hawkpumps.co.za

PLUNGER PUMPS

T: +27 (0) 861 822-832 +27 (0)11 318 3241/2/3/4 C: +27 (0)82 576 9373 E: burnm@vactech.co.za W: www.vactech.co.za info@vactech.co.za

0861 VACTEC (822 832)

AESPUMP SA

T: +27 (0) 17 631-1003 F: +27 (0) 17 631-1002 E: craigg@aespump.co.za W: www.aespump.co.za

www.vactech.co.za

HORMA PUMPS (PTY) LTD T: +27 (0) 11 452 4300 F: +27 (0) 11 452 4400 C: +27 (0) 82 779 2464 E: sales@horma.co.za w: www.horma.co.za

C.R.I Pumps S.A. (Pty) Ltd

T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri-za@crifluidsystems.com W: www.cripumps.co.za

Integrated Pump Rental

T: +27 (0) 11 894-2906 E: admin@pumprental.co.za W: www.pumprental.co.za

Hawk High Pressure Pumps T: +27 (0) 031 274-8555 +27 (0) 10 010-0144 F: +27 (0) 31 205-4332 +27 (0) 11 822-2868 E: sales@hawkpumps.co.za W: www.hawkpumps.co.za

POSITIVE DISPLACEMENT PUMPS

SUBMERSIBLE PUMPS

T: +27 (0) 11 824-4810 E: info@pumptechnology.co.za W: www.pumptechnology.co.za

uality

Sulzer Pumps (South Africa) (Pty) Ltd T: +27 (0) 11 820 6000 F: +27 (0) 11 820 6206 E: CSSEnquiries@sulzer.com W: www.sulzer.com

WASTEWATER PUMPS

VAC-CENT SERVICES (PTY) LTD.

Aquaplex Pumps

T: +27 (0) 76 476 4084 E: gavin@aquaplexpumps.co.za

AESPUMP SA

T: +27 (0) 17 631-1003 F: +27 (0) 17 631-1002 E: craigg@aespump.co.za W: www.aespump.co.za

Integrated Pump Technology

Integrated Pump Rental

VAC-CENT SERVICES (PTY) LTD T: +27 (0) 11 827 1536 F: +27 (0) 11 824 3590 E: info@vaccent.co.za W: www.vaccent.co.za

VERTICAL SUMP PUMPS

T: +27 (0) 11 894-2906 E: admin@pumprental.co.za W: www.pumprental.co.za

KSB (Pty) Ltd

T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com WELL PUMPS

KSB (Pty) Ltd Unique Engineering

T: +27 (0) 11 826-6111 F: +27 (0) 11 826-6162 E: sales@uniqueeng.co.za W: www.uniqueeng.co.za 44

Integrated Pump Technology T: +27 (0) 11 824-4810 E: info@pumptechnology.co.za W: www.pumptechnology.co.za

Pipes, Pumps and Valves Africa - Jan/Feb 2022

T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com

KSB (Pty) Ltd

T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com

VALVES BALL VALVES

CONTROL VALVES

VESCONITE

MAKES VALVES

KV Controls (Pty) Ltd LVSA Group (PTY) LTD

T: +27 (0) 16 100-4592 E: fred@kvcontrols.co.za W: www.kvcontrols.co.za

T: +27 (0) 11 680 2005 E: sales@lvsa.co.za W: www.lvsagroup.co.za

Bray Controls Africa

T: +27 (0) 10 007-3222 E: sales@bray.com W: www.bray.com

Pleix-Quip

T: +27 (0) 11 736-4994 C: +27 (0) 83 461 0801 E: tiaans@pleixquip.co.za W: www.pleixquip.co.za

Valcon Valve & Controls

T: +27 (0) 11 453-7537 E: valconsa@iafrica.com W: www.valcon.co.za

CHECK VALVES

BUTTERFLY VALVES

Bray Controls Africa

T: +27 (0) 10 007-3222 E: sales@bray.com W: www.bray.com

C.R.I Pumps S.A. (Pty) Ltd

Enserve Engineering Services (Pty) Ltd

Invincible Valves (Pty) Ltd T: +27 (0) 11 822-1777 F: +27 (0) 11 822-3666 E: enquiries@invalve.co.za W: www.invalve.co.za

www.vesconite.com Call: +27 11 616 1111

Macsteel Fluid Control

T: +27 (0) 82 495 2772 C: +27 (0) 11 383 4000 E: Rowan.Blomquist@macfluid.co.za W: www.macsteel.co.za DIAPHRAGM VALVES

T: +27 (0) 11 822-1777 F: +27 (0) 11 822-3666 E: enquiries@invalve.co.za W: www.invalve.co.za

Kaytar Valves (Pty) Ltd Kaytar Valves (Pty) Ltd

T: +27 (0) 21 987-8292 C: +27 (0) 81 555-5288 E: clinton@kaytarvalves.co.za W: www.kaytarvalves.co.za

Macsteel Fluid Control

T: +27 (0) 82 495 2772 C: +27 (0) 11 383 4000 E: Rowan.Blomquist@macfluid.co.za W: www.macsteel.co.za

Pleix-Quip KSB (Pty) Ltd

T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com

T: +27 (0) 11 736-4994 C: +27 (0) 83 461 0801 E: tiaans@pleixquip.co.za W: www.pleixquip.co.za

T: +27(0) 16 971 3385 F: +27(0) 16 971 3935 E: mail@enserve.co.za W: www.enserveonline.com

Invincible Valves (Pty) Ltd T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri-za@crifluidsystems.com W: www.cripumps.co.za

CMY

T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri-za@crifluidsystems.com W: www.cripumps.co.za

C.R.I Pumps S.A. (Pty) Ltd

CALAFRICA Hydronic Solutions T: +27 (0) 11 795 1519 C: +27 (0) 83 303 1437 E: technical@calafrica.co.za W: www.calafrica.co.za

Pleix-Quip

T: +27 (0) 11 736-4994 C: +27 (0) 83 461 0801 E: tiaans@pleixquip.co.za W: www.pleixquip.co.za

LAST LONGER

T: +27 (0) 21 987-8292 C: +27 (0) 81 555-5288 E: clinton@kaytarvalves.co.za W: www.kaytarvalves.co.za

LVSA Group (PTY) LTD

T: +27 (0) 11 680 2005 E: sales@lvsa.co.za W: www.lvsagroup.co.za

Mine Track & Tools (Pty) Ltd T: +27 (0) 11 412 4536/1665 E: info@minetrack.co.za W: www.minetrack.co.za

FLOW CONTROL VALVES

VACSERVE (PTY) LTD

T: +27 (0) 11 827 1536 F: +27 (0) 11 827 3590 E: karishma@vaccent.co.za W: www.vacserve.co.za GATE VALVES

KSB (Pty) Ltd

T: +27 (0) 11 876-5600 F: +27 (0) 11 822-2013 E: info-za@ksb.com W: www.ksb.com

Invincible Valves (Pty) Ltd T: +27 (0) 11 822-1777 F: +27 (0) 11 822-3666 E: enquiries@invalve.co.za W: www.invalve.co.za

Pipes, Pumps and Valves Africa - Jan/Feb 2022

VALVES THERMOSTATIC CONTROL VALVES

KV Controls (Pty) Ltd

T: +27 (0) 16 100-4592 E: fred@kvcontrols.co.za W: www.kvcontrols.co.za

Macsteel Fluid Control

ADVERTISE WITH US TODAY !!

VACSERVE (PTY) LTD

T: +27 (0) 11 827 1536 F: +27 (0) 11 827 3590 E: karishma@vaccent.co.za W: www.vacserve.co.za VALVE RECONDITIONING

T: +27 (0) 82 495 2772 C: +27 (0) 11 383 4000 E: Rowan.Blomquist@macfluid.co.za W: www.macsteel.co.za

Enserve Engineering Services (Pty) Ltd Valcon Valve & Controls

T: +27 (0) 11 453-7537 E: valconsa@iafrica.com W: www.valcon.co.za KNIFE GATE VALVES

T: +27(0) 16 971 3385 F: +27(0) 16 971 3935 E: mail@enserve.co.za W: www.enserveonline.com

Mine Track & Tools (Pty) Ltd T: +27 (0) 11 412 4536/1665 E: info@minetrack.co.za W: www.minetrack.co.za

C.R.I Pumps S.A. (Pty) Ltd

VALVES FOUNDRY

T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri-za@crifluidsystems.com W: www.cripumps.co.za

Steloy Foundries

T: +27 (0) 13 110 2681 E: support@steloyfoundries.com W: www.steloyfoundries.com

Mine Track & Tools (Pty) Ltd T: +27 (0) 11 412 4536/1665 E: info@minetrack.co.za W: www.minetrack.co.za

PRESSURE REDUCING VALVES

KEW Foundries

T: +27 (0) 53 841 0474 F: +27 (0) 53 841 0473 E: info@kewfoundries.co.za W: www.kewfoundries.co.za

CALAFRICA Hydronic Solutions T: +27 (0) 11 795 1519 C: +27 (0) 83 303 1437 E: technical@calafrica.co.za W: www.calafrica.co.za

Ukuthela Foundry Projects T: +27 (0) 12 719 8860 E: ukuthela@live.co.za

Pipes, Pumps and Valves Africa - Jan/Feb 2022

+ 27 (0) 83 281 5761 info@pumpsandvalves.co.za www.pipespumpsandvalves.co.za

MAY 25

26 2022

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CONTACT

Vincent Mulder +27 79 517-4489 vincent@minetrack.co.za vincent@minetrack.co.za

info@minetrack.co.za info@minetrack.co.za +27 +27 11 11 412-4536 412-4536 www.minetrack.co.za www.minetrack.co.za

Latest Pipes, Pumps & Valves Africa Jan-Feb 2022

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Let’s stop the perennial flooding by effectively utilising the budget

7 Questions for creating an effective dewatering system

Valves Hospital

Building on Xylem’s green finance evolution

Vesconite’s lead-free solutions to reduce lead exposures

How ARI designs air-valves for the lowest possible total cost of ownership

How quality butterfly valves can save your company a lot of money

Plug valve speed repair

VEGA’s simple radar formula for better processes

Merits of mechanical and digital options in dosing pumps

Bilfinger

Consider it pumped with the WEDA from Atlas Copco

AMD

Afromix – unique, dynamic and innovative leaders in the mixing and pumping industries

Xylem

Efficient motors vital for desalination plants

Locally built diesel pumps for every application

Bray Industrial Valve Summit IBC Invincible Valves OFC KSB IFC

Tough conditions call for Grindex drainage pumps

Listen to your pump

environmental protection”

Reducing the hidden cost of electrical submersible pumps

Tsurumi’s GSZ pump lowers quarry costs and eliminates pollution concerns

LVSA Group achieves API-600 certification - a first in Africa

LVSA

Aeration of Wastewater by means of a blower & air diffusors

Steloy Foundries

Invincible Valves – a force to be reckoned with