Pipes Pumps and Valves Jul/Aug 2017

Jul / Aug 2017

ENDORSED BY SAPMA , SAPSDA SAVAMA, AND VAMCOSA

KINDLY REGISTER YOUR ATTENDANCE BY VISITING Pipes, Pumps and Valves Africa - Jul/Aug 2017

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MOTOR

inside the motor

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

CONTENT V:\!BMG\#Jobs\Adverts\2017\062017\BMG-EXPO23062017 - Expo Cover.cdr 27 June 2017 02:00:19 PM Color profile: Disabled Composite Default screen

FRONT COVER STORY

ENDORSED BY SAPMA , SAPSDA SAVAMA, AND VAMCOSA

The BMG World Reveal

Jul / Aug 2017

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ASSOCIATION NEWS

Pipes Pumps & Valves Africa Exhibited At KITE 2017

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WOMAN IN THE INDUSTRY

Pam du Plessis - Invincible Valves

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Caroline Gillian Houghton - Rapid Allweiler

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INDUSTRY NEWS

Tender Process For The Tough-Minded

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SAPMA - A Sector Specific Association

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PUMPS

Why Use A Liquid Ring Vacuum Pump

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Thermaspray Protect Power Generation Components Against Corrosion And Wear

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Vaughan Chopper Pumps

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KBI Announces Of Exciting Partnership With Aquflo USA

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Slurry Pump Selection Based On Particle Size

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No Recirculation With Krebs Slurrymax

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Becker Mining SA Has Recently Supplied Five HS Pumps To A Platinum Mine in Limpopo

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EUPSIM Is The Future In Submersible Pumping Technology

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New Close-Coupled Pump From KSB

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ROOTS Rotary Lobe Blowers

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Pump Manufacturer Installs Bushings With Ease

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SMC Sees Early Success With Its Pneumatic Panel Offering

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VALVES

Red Roc Hi-Lift Pinch Valves Offer Unique Inline Rubber Sleeve Afrivalve Expands C-Tech Knife Gate Valve Range

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PIPES

Wide Range Of Components For Advanced Subsoil Drainage Systems

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FOUNDRIES

New Techniques In Casting Operations

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From A Humble Beginning, A Business Of Pride, Quality And Customer Commitment Has Been Established

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MARKET PLACE

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BUYERS GUIDE PUMPS

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BUYERS GUIDE VALVES

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KINDLY REGISTER YOUR ATTENDANCE BY VISITING

On the cover BMG

Tel: +27 (0) 11 620-1500 Email: riaanl@bmgworld.net Web: www.bmgworld.net

Pumps & Valves Africa

Sales Manager: Surita Marx Tel: +27 (0) 11 475-0010 Cell: +27 (0) 83 281-5761 Email: info@pumpsandvalves.co.za Web: www.pumpsandvalves.co.za Sales: Lusana Mrkusic Email: sales@pumpsandvalves.co.za Sales: Naomi Erasmus Email: info@pumpsandvalves.co.za Production: Jeanette Jordaan Sub-Editor: Debbie van Rensburg

Index to Advertisers

Air & Vacuum Technologies 15, 33 APE OBC BMG OFC Chick Henderson 29 CRI Pumps 19 Electra Mining 27 Ernest Electro Engineering IFC, 31 Industrial Valve & Engineering 37 Invincible Valves 9, 35 KSB 21 Monitor Pumps & Systems 13 Quantum Foundry Group 11 Rapid Allweiler 10 Sam Engineering 25 Tectra Automation 23 Thermaspray 17 Viking Foundry 41

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 - Jul/Aug 2017

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The BMG World Reveal COVER STORY

BMG is set to officially open its recently upgraded BMG World distribution and engineering facility at a two-day event in September 2017.

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The reveal of the BMG World facility in Johannesburg, is the culmination of a consolidation and supply chain reengineering strategy which began nearly 10 years ago.

The BMG World facility reflects the company’s ability to supply world class integrated engineering solutions to Southern African industries,” says Gavin Pelser, managing director, BMG, part of Invicta Holdings Limited. “The R350-million investment to transform the existing Droste Park facilities into a leading edge distribution centre was made in order to centralise functional and support operations onto one site.

Through this rationalisation initiative, BMG strives to achieve cost optimisation, improve regionalised branch office systems thereby enhancing customer service capability.

programme includes site tours, product exhibits and working demonstrations.”

“The improved facilities contain over 50 000 m² of warehousing and more than 300 000 line items of product. This enables BMG to continue to provide high levels of operating efficiencies and delivery service, in line with the substantial continued growth of the business.

Functional operations at BMG World include a product warehouse and distribution centre for the entire product range, a manufacturing centre and general engineering workshop.

There are also specialist assembly and repair workshops for drives, conveyors, hydraulics and pneumatics, as well as electric motors, electronics, gaskets, lubrication systems and filtration.

“We are looking forward to hosting over 3 000 customers, as well as international and local suppliers at this event, which marks the official opening of BMG World. The

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

The BMG World reveal will not only highlight the company’s extensive range of engineering components and technical expertise, but there will be a focus on how BMG integrates its vast product range and extensive technical services into tangible operational efficiencies.

This event takes place at BMG World in Droste Park, Johannesburg, on 14 and 15 September 2017 and registrations are via the website www.bmgworld.net.

What’s New at BMG World?

BMG has invested in the latest materials handling equipment, including high bay reach trucks, to optimise volumetric

COVER STORY

efficiency. Special machinery at the new facility includes eight dock levellers that will handle approximately 120 containers a month and a regenerative load test rig.

This new load test rig plays a critical role in bringing the tangible benefits of the company’s ‘world class production efficiency’ to South African industry.

This 200 kW load test rig has been developed in response to demand from local industry for absolute reliability from new gearboxes. This system uses the latest technology to transmit and apply loads of up to 30 000 Nm, with the lowest energy consumption. This is sufficient torque to test the majority of Paramax gearboxes in BMG’s range, within at least a third of each unit’s rated capacity.

A cornerstone of this initiative is reliability engineering – a philosophy aimed at keeping plant in full productive output for as long as possible, without unnecessary maintenance or unplanned stoppages. As a result, output capacities are increased without investment in additional production lines and machinery.

BMG World is also home to field services. A team of at least 140 specialised mobile technicians, conduct breakdown and routine maintenance on plant. This team carries out troubleshooting and advises on possible productivity improvements, to ensure the highest level of plant availability and reliability.

Specialist services include installation, adjustment, replacement and maintenance of components, shaft and pulley alignment, balancing, condition monitoring, oil sampling and analysis and critical equipment inspections and lubrication schedules.

Maintenance training and fault diagnosis are an important part of BMG’s field services.

The upgraded premises also include significantly expanded facilities in the customer service centre for the BMG Academy of Excellence’s practical and theoretical training, to take advantage of MerSETA accreditation for skills development and training for company employees and customers. BMG recognises the need to grow engineering skills, not only for its own succession requirements, but also for the development and sustainability of African economies.

BMG’s technical resources centre offers services, which positively influence a company’s operating efficiencies, by ensuring maximised mechanical reliability of plant and machinery. The technical resources team partners each customer to ensure dependable solutions – from the initial design concept, specification, manufacturing quality control, commissioning and support of equipment in use.

BMG is committed to providing a 24 hour customer process support for production efficiency and reliability centred maintenance. This is enhanced by advanced technical and design support across all functional disciplines.

Services include technical applications consulting, product and system design, on-site process analysis, lab and on-site oil analysis, product quality control and assurance, as well as condition monitoring services.

Contact Riaan le Roux, Marketing Manager, BMG,

To register to attend the event, go to www.bmgworld.net/ sitereveal

Tel: +27 (0) 11 620-1500, riaanl@bmgworld.net, www.bmgworld.net Pipes, Pumps and Valves Africa - Jul/Aug 2017

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Pipes Pumps & Valves Afr

The KwaZulu-Natal Industrial Technology Exhibition (KITE) 2017 is undoubtedly the largest gathering in KZN for pro the hottest trends in industrial technology and services. With over 140 exhibitors showcasing the widest variety o

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Tapflo

Ultra Control Valves

Madacan Africa Industrial Supply

Parker

Valve Specialists

National Rotating Equipment

Aqua - Liquid Movers

CMO Valves

KSB

Hutchings Hydraulics

LVSA-TVM-Petrel-Romotas

ABB

Pipes, Pumps and Valves Africa - Jul/Aug 2017

rica Exhibited At KITE 2017

oviders and users of industrial technology and services. Held at The Durban Exhibition Centre, KITE 2017 featured of top brands from local and international manufacturers and suppliers, visitors was spoilt for choice.

Atlas Copco

Pepperl + Fuchs

Stainless Connection

AZ-Armaturen SA

Vesconite Bearings

DSA

Samco Pumps

Watson Marlow Fluid Technology Group

Aumanat

Mega Measurements Pulsar

Samco Pumps

Pipes, Pumps & Valves Africa

Pipes, Pumps and Valves Africa - Jul/Aug 2017

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Woman in the Industry Pam du Plessis, Invincible Valves Under the invaluable leadership of the award-winning Pam du Plessis, Managing Director, the company has dedicated itself to skills training and empowering women within the industry.

Invincible Valves has completed the work on its new training facility at its factory in Knights and it is now planning a grand opening with the Mayor of Ekurhuleni. In the interim, however, Du Plessis says they are utilising the facility, which is a fully-equipped centre that can seat up to 20 candidates behind desks.

“The centre is equipped with a Bluetooth overhead projector, boards, laptops and valve cut away samples. The training we provide is a wide variety of modules that cover the following: Basic Business Skills, Introduction to Valves, Working with Valves, Control Valves, Product Training, Sales Training, Emotional Intelligence, Health & Wellness Training, which covers HIV/ Aids, Tuberculosis and general wellness issues,” explains Du Plessis.

This year, Pam du Plessis won an award in the “Over $5 million and up to $10 million in annual revenues” category at the prestigious 2017 Enterprising Women of the Year Award held in Florida. The Enterprising Woman of the Year Awards is an annual tribute to the world’s top women entrepreneurs. It is widely considered one of the most prestigious recognition programmes for woman business owners.

In order to win, nominees must demonstrate that they have fastgrowth businesses, mentor or actively support other women and girls involved in entrepreneurship and stand out as leaders in their communities. Award winners are recognised in seven categories and recipients of awards represent an amazing group of woman entrepreneurs from across the USA, Europe, UK, Canada and Africa.

This incredible accomplishment has meant a tremendous amount to Pam, both personally, as a woman in the engineering industry, and for the reputation of the company. “For me personally, with it being a lifetime achievement award, I was honoured and proud to receive it. For the business, it has shown the market that we, Invincible Valves, are honourable and committed to our staff, industry and community,” she says.

August may be women’s month, but Du Plessis and Invincible Valves are committed to women’s empowerment on a continuous basis.

“We don’t only focus on the month of August, instead we run our empowerment programme all year round,” she says, adding that they hold numerous mini-events throughout the year.

This is absolutely crucial, as the industry still has much room for improvement in terms of its views on women in positions of leadership. “From my perspective, the industry is still not quite accepting of women in senior positions. With that said, I have noticed a slight positive change in the perception of the industry and would welcome even more,” adds Du Plessis.

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As a woman, it can be quite a challenge to succeed in a primarily male-dominated industry, as Du Plessis has experienced. “The challenges are quite real as in you are not taken seriously, you can be isolated, as the assumption is that you won’t or don’t understand. Some find it rather amusing that you “think” you can survive, so they will put you through your paces to attempt to break you.

“The easiest way to overcome any of these issues is to apply emotional intelligence to all situations, educate yourself and deliver the facts. For me personally, the journey has been an absolute adventure and I have thoroughly enjoyed being challenged as it has encouraged me to learn more, to listen more, speak less and push my own boundaries,” she explains.

Pam du Plessis is an inspiration to young women, particularly those who aspire to positions of leadership and her advice is emphatic, yet powerful. “Simply be yourself. Understand that knowledge is power and there is absolutely no need to change who you are or the way you operate. Change triggers fear, consistency creates stability and attitude is your perspective,” she says.

In terms of leadership, Invincible Valves has a well-balanced structure that allows them to work smarter and with more input.

Du Plessis explains that they have corporate governance within their business with a Board of Directors made up of Executive, Non-Executive and Independent Directors. “Leadership is all about guidance and direction. Most definitely not about domination, ruling or being the boss. We have a rather different way of leading in our company as we don’t have the traditional hierarchy. Instead, we have the leader with a number of team leaders.

These team leaders have teams of five or less giving us a greater opportunity to identify the individual needs of all team members as well as complete tasks more efficiently. “This works for us because of our traditional family value system. Leadership allows for an open door policy, it allows the business to discuss and debate issues, it enables us to respect one another’s opinions and, most of all, it creates the Invincible Valves Family,” she concludes.

Contact Pamela du Plessis, Invincible Valves, Tel: +27 (0) 11 822-1777, enquiries@invalve.co.za www.invalve.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

INVINCIBLE VALVES (PTY) LTD Invincible Valves (Pty) Ltd was established in 1982 and since has grown to a medium sized enterprise located in Knights, Germiston. Invincible Valves prides itself on service excellence and flexibility by striving to enhance our customer’s bottom line.

Our 6,500m² facility in Knights is made up of 4,500m² under roof being our stores and workshop. The facility is fully equipped to offer a one-stop resource for valves and ancillary equipment which we transport globally.

Valve Sales, Reconditioning & Rubber Lining

As an approved BBBEE Level 4 supplier to all major industries within South Africa, we maintain expertise and experience across a broad spectrum of industries and applications with a wide range of products. We offer a comprehensive range of local and imported valves and accessories for the mining, petro-chemical, power generation, water, sewerage and general industries. We have agents in all major centres around the country and service all four corners of the globe.

We offer an in-house rubber lining service for valves, pipes, fittings and vessels which is utilized by many of the country’s major valve manufacturers. In addition we offer complete service, repair and valve reconditioning services for all types of valves.

Our Core Values:

If it's not INVAL® it's not INVINCIBLE

We believe in treating our customers with respect. We grow through creativity, invention and innovation. We integrate honesty, integrity and business ethics into all aspects of our business functioning.

Our Mission Statement: Build long term relationships with our customers and clients, to provide exceptional customer services by pursuing business through innovation and advanced technology.

Our Purpose: P.O. Box 2149, PRIMROSE 1416 Tel: 011 822 1777 / 011 027 1831 Fax: 011 822 3666 Sales: enquiries@invalve.co.za Management: pamdp@invalve.co.za

To be a leader in the Valve Industry by providing enhanced services, customer service and profitability.

Our Vision:

To provide a quality service that exceeds the expectations of our esteemed customers.

Invincible Valves is a proud supplier of quality valve products and ancillary equipment backed by service excellence around the globe. It is the combination of these values that allows us to form lasting business relationships.

© Creamer Media 061115CG

33 Shaft Rd, KNIGHTS Germiston

www.invalve.co.za

TEL: +27 (0) 11 822 1777 | FAX: +27 (0) 11 822 3666 | EMAIL: enquiries@invalve.co.za | WEB: www.invalve.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

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Woman in t

Caroline Gillian Houghto Current company CEO of Rapid Allweiler Pumps (PTY) Ltd CEO of Quantum Foundry Group (PTY) Ltd

Academic Qualifications : Higher diploma in Food & Nutrition

First Salary R2500.00 per month at Fedics food services

Challenges you have faced being a women in the industry

WE HAVE ALL THE TICKS WE MANUFACTURE

ANSI

HEAVY-DUTY PROCESS PUMPS

Advice to offer to other women in the industry?

WE REPAIR WE FIND SOLUTIONS MARKET LEADERS SHORT LEAD TIMES

NT

END SUCTION CENTRIFUGAL PUMPS TO DIN24255

CBS:QUALITY MANAGEMENT SYSTEM

All you have to do is believe in yourself and prove you can do the job and the respect comes. Most woman are hard on themselves and do not have the self-belief.

This industry is well paying and challenging everyday so just give it a go and prove yourself.

What motivated you to go into this industry?

I had no option I came back from living in London to find the family business in huge trouble with a 13 million rand law suit and no money in the bank.

OWN GREY IRON & STAINLESS STEEL FOUNDRY CLT

MEDIUM-DUTY CENTRIFUGAL CHEMICAL PUMPS

Go to our website to view our full range of products & services www.rapidallweiler.co.za 10

I took over the business as a 30 year old blond who had a degree in Food and nutrition and did not even know what a pump was or how it worked.

The pump industry was and still is a white male dominated industry.

Most of the people in the industry gave me 3 months, but it has now been 14 years and I am still continuing to grow the business ever day.

It was hard being a lady in the pump industry with all the jokes that come with it.

Pipes, Pumps and Valves Africa - Jul/Aug 2017

I had no plans to be in this industry, however saving the business started by my 92 year old grandfather (at the time) was motivations enough, I know love the industry and the pump business turns 85 years old this year As Harvard say “1st generation build, 2nd spends, 3rd destroys” and I consider myself the 1st as I had to rebuild it from scratch.

Contact Caroline Hought Tel: +27 (0) 11 573-7400, c.houghton@rapidallwei www.rapidallweiler.co.za

the Industry

on, Rapid Allweiler Pumps

HIGH QUALITY, COMPETITIVE & TIMEOUS SUPPLY FOR ALL YOUR CASTING NEEDS

STAINLESS STEEL CAST IRON DUCTILE IRON SPECIAL ALLOYS

If you could choose any other industry, what industry would it be?

I would never change the industry I am in I love every day.

They say if you love your job you will never work a day in your life.

I am that blessed.

Favourite other SA Company?

Bidvest – always innovating

Person who has had the biggest influence on your career and life: My grandfather who started the pump business in 1932, his passion, commitment and sacrifices for his company was amazing and truly inspiring.

Contact:

My husband that challenges me to be the best I can be every day.

+ 27 71 898 8986

hton, Rapid Allweiler Cell: +27 72 695-4530 iler.co.za a

DUANE PETERS VERY SHORT LEAD TIMES IN HOUSE METALLURGIST

VERY RESPONSIVE TO CLIENT DEMANDS Pipes, Pumps and Valves Africa - Jul/Aug 2017

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INDUSTRY NEWS

Tender Process For The Tough-Minded Speaking of transparency in the same sentence as tendering to government; surely not?

Chartered accountant [CA(SA)] Julius Mojapelo, Senior Executive for the Public Sector, at the South African Institute of Chartered Accountants (SAICA) sets the record straight.

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here are many Small, Medium and Micro Enterprises (SMMEs) doing honest deals with government, through a legal, transparent process of procurement and Tendering.

But the truth is that by far the majority of SMMEs steer well clear of government even though BBBEE and tendering rules favour them. As important as it is for tender processes to be above board for SMMEs who find these processes onerous enough, SMMEs generally don’t look for business from Government at any level for a much more critical (to them) reason. They do not on average get paid on time by public institutions.

And as a result, over 80% of SMMEs don’t do business with government at any level.

This was among the findings of the 2016 SMME Insights Survey conducted by SAICA, which is the most recent research on the topic by the institution.

The SMME Insights Survey is a substantive study, which has been conducted annually since 2014. The average turnover of these enterprises is R10.9 million, with a third employing between six and 49 people. These companies are, according to the National Development Plan, the country’s only hope of reducing unemployment and poverty and of boosting our failing levels of gross domestic product.

Among the survey’s critical conclusions is that SMMEs (and by extension our country) could flourish if the tender process was simplified and made more transparent, and if government and big business paid their accounts on or before 30 days.

Public finance management capacity building In the light of the low uptake by SMMEs in tendering for government contracts and the often bemoaned slow payment by government it is heartening to learn that SAICA is working with government to improve public finance management capacity.

But what, exactly, is being done?

“Providing 12

public

finance

Pipes, Pumps and Valves Africa - Jul/Aug 2017

management capacity building support is a priority at SAICA,” says Mojapelo. “This involves collaboration with public sector institutions to help them improve financial management systems and processes to ensure sustainable service delivery.” Paying SMMEs on time would be one of the outcomes.

“SAICA is also educating SMMEs and SAICA members who interact with SMMEs on the process of doing business with government. This makes it easier for SMMEs to tender for contracts.”

But with slow payment by government a concern for many SMMEs is Mojapelo optimistic about a turnaround? “I see signs of government’s commitment to turning the situation around, through recent legislation and measures,” he confides.

“Among them,” explains Mojapelo, “Treasury Regulations 8.2.3 states that, unless determined otherwise in a contract or other agreement, all payments due to creditors must be settled within 30 days from receipt of an invoice or, in the case of civil claims, from the date of settlement or court judgement.”

“Specifically; these measures include establishing a dedicated call centre within National Treasury to assist institutions and affected suppliers in resolving non-payment of suppliers/creditors appointed through the supply chain management process.”

But, as the Minister observed, “The contribution of SMMEs to the South African economy is far below its potential.”

While this is a step in the right direction, SMMEs remain unconvinced about doing business with government. The proof of the pudding it seems will only emerge in the eating.

“According to the Quarterly Financial Statistics Report, the private sector earned a total of R2.3 trillion in the last quarter of 2016. Large businesses…contributed 60% to this total, followed by small and medium businesses at 40%.”

Facilitating payment of long standing government debtors Mojapelo sympathises with the plight of SMMEs, struggling to get payment from government.

“The Small Enterprise Development Agency payment assistance hotline is a very important platform that SMMEs can use to facilitate payment of long outstanding payments from public sector institutions (www.seda-smme.co.za),” says Mojapelo.

And current legislation protects SMMEs in instances of slow payment.

“Should entities fail to comply with the 30 days payment terms, this will result in non-compliance with the Public Finance Management Act and Treasury Regulations,” explains Mojapelo.

In the words of Lindiwe Zulu, Minister of Small Business Development in a budget speech earlier this year, “National Treasury has gazetted the revised Preferential Procurement Regulations in January 2017, which encourages Government and its entities to procure at least 30% of goods and services from SMMEs and Cooperatives.”

“We need to do better and match the global average which shows that small businesses share higher levels of participation in various economies. This is possible if we heed the President’s directive to set aside 30% of government procurement budget of around R600 billion towards SMMEs and Cooperatives.”

SMMEs might be tempted to reply to Minister Zulu that “the contribution of government to encourage SMME involvement by paying its bills on time is also far below its potential.” The ball, it seems, is firmly in government’s court. There is no chicken and egg situation here. If government pays on time SMMEs will engage in droves.

INDUSTRY NEWS

Tellingly, National Treasury will provide quarterly reports to parliament regarding the non-payment of creditors within 30 days, and make the reports public.

The continued growth of SMMEs rests on government’s commitment to delivering on tender and payment policy. Everyone’s a winner when we create jobs through transparent tenders, fairly awarded, and where work is paid on time.

SMMEs wanting to report slow payment by government may call 0860 766 3729.

Pipes, Pumps and Valves Africa - Jul/Aug 2017

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INDUSTRY NEWS

SAPMA – A Sector Specific Association The South African Pump Manufacturers Association (SAPMA) was established 54 years ago and was registered as an employers’ organisation in 1981, and is federated to the Steel and Engineering Industries Federation of Southern Africa (SEIFSA). One of the primary objectives is to look after the interests of the pump manufacturing companies in South Africa.

The primary membership of the SAPMA includes members who are actively engaged in the manufacture, fabrication and/or assembly of pumps. Provision is also made for Second, Associate/Individual and Affiliate Membership.

It will consists of; •

A set of Comprehensive Advanced Pump Course notes

•

A memory stick with :

The Association promotes ethical business practices and offers an ideal platform for its members to network with relevant industry players, discuss issues such as government legislation, labour laws and general matters affecting the steel and engineering industries within South Africa, as well as the sector.

o Vibration standard: ISO 10816 parts 1-7

o Balancing standard: ISO 1940 parts 1-2

o Pump Testing standard: ISO 9906

•

API 610 Pump Standard

•

Electronic Steam Tables

SAPMA’s key Objectives

•

Electronic Conversion program – Imperial to SI Units or SI Units to Imperial

•

Friction Calculation – Excel spread sheet

•

A certificate with the candidates name with the activity - CPD number will be printed and presented to the candidate at the end of the two day pump course

•

Lunch, Refreshments and Material.

•

Regulate relations between members, employees and trade unions

•

Promote the interests of members

•

Plan and organise its administration and lawful activities

•

Promote, support or oppose any proposed legislation posing a threat to the interests of its members

•

Further the interests of the industry through public relations activities

•

Obtain, collate and distribute relevant information from the industry to its members

•

Create and maintain employment within the South African Pump Industry

SAPMA takes on projects that are designed to benefit the industry, specifically through a training course in pumps.

The next training course will be the ECSA Accredited Training Advanced Pumped Course that will be held on the 22nd23rd August 2017.

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

The training session will be facilitated by Willem van der Westhuizen who obtained a Masters Diploma in Technology T5 (Mechanical Engineering) in 1987 and Master of Science in Engineering (MSc - Mechanical Engineering) in 1997 at the University of the Witwatersrand - Johannesburg. After training periods at Sulzer Pumps – Winterthur, Switzerland and Sulzer Pumps South Africa he joined the Turbine Plant Engineering Design Department of Eskom. He has 26 years’ experience in Power Station critical pumps which includes selection, evaluation, manufacturing, testing, installation, commissioning and trouble shooting.

The Association strives to help industry players to be prolific and to ensure that the sector actively participates in the South African economy.

Why Use A Liquid Ring Vacuum Pump?

Manufacturing today is no longer simply about making physical products but about finding new ways to create and capture value for the end user.

F

Now we get to the original question which was, why use a L.R.V.P? •

• • • • • •

Simplicity: L.R.V.P’s are simple in design, have two moving parts with far less wear, less maintenance & a trouble free long life as they are capable of ingesting large quantities of soft solids and liquid without incurring any mechanical damage Ease of operation: Once started, the pump requires no constant attention from an operator. One can almost forget about it being there.

Economic operation: With a closed circuit one can circulate & cool the sealant water or fluid, saving running costs.

Pumping capacity: Large volumes of air or gas can be evacuated, including saturated air, within a short period of time, leading to efficient operation of the process involved.

Ease of installation: L.R.V.P’s are vibration free, nonpulsating & quiet during operation. No special foundations or silencers are required.

Ease of maintenance: Periodic attention to the bearings & seals is the only maintenance required.

Selection of sealant liquids: The correct selection of the appropriate sealant liquids, other than water, can be chosen to suit the specific application. This can reduce the cost of expensive filtration equipment for the process. Higher vacuum levels can be achieved when using sealants with low vapour pressures. One can also reduce corrosive wear

•

by evacuated process gasses by selecting the correct sealant to run the pump on.

Materials of construction: Standard MOC include cast iron, 304 & 316 stainless steel which would cover a large percentage of applications. In the more corrosive applications, special internal coatings can be applied to reduce internal corrosive wear. Packing’s, single or double mechanical seal options are available.

PUMPS

irstly let us start with the principles of operation: In a nut shell the basic components of a liquid ring vacuum pump (L.R.V.P) comprise of an impeller, with equi-spaced radial blades rotating between two end covers & eccentrically mounted within a cylinder casing. The cylinder casing is partially filled with sealing medium, usually water. As the impeller turns, the water is flung outwards & forms a rotating water ring which seals the spaces between the vanes of the impeller. Due to the fact that the impeller is positioned eccentrically inside the cylinder casing, the water advances & recedes from the centre boss of the impeller acting as a liquid piston which compresses the air or gases in the space between the vanes of the impeller.

The suction & discharge ports are located within the pumps end cover/s.

Typical applications: • Clay brick manufacturing.

• Plastic forming plants.

• Car assembly plants.

• Chemical manufacturing processes.

• Central vacuum systems.

• Hospitals.

• Tyre manufacturing.

• Mining applications – vacuum belt & drum filtration systems.

• Printing & packaging plants.

• Pharmaceutical & cosmetic production plants.

• Dental.

• Bottling plants.

• Food & boiled sweet production.

To name a few.

One should also keep in mind that these pumps can also be used for low pressure compressors but there are also some manufacturers who produce liquid ring compressors that can reach a final pressure of 10 bar.

Contact Air & Vacuum Technologies, Tel +27 (0) 11 318 3241/2/3/4, www.vactech.co.za, info@vactech.co.za

Pompetravaini, a market leader in the manufacture of Liquid Ring Vacuum Pumps – A&VT are the Sole Agents for Southern Africa.

SALES, SPARES AND REPAIRS

info@vactech.co.za

0861 VACTEC (822 832)

www.vactech.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

15

PUMPS

Thermaspray Protect Power Generation Components Against Corrosion And Wear South Africa’s Thermal Spray and Plasma Coating technology specialist, Thermaspray, delivers world-class refurbishing, manufacturing and repair services to numerous power stations around the country.

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quipment and components such as steam generators, pumps and turbines that handle steam and water in the steam cycle operate in extremely harsh environments, including high pressure steam, high temperatures and metal-to-metal wear at seating areas. “These are the main contributors of wear in steam and water valves,” says Thermaspray Spray Shop Manager, Paul Young. He adds, “These components require a variety of control, safety and shut off systems and this is where a lot of wear occurs.

Furthermore, the surface of valve seats and spindles need to inhibit oxidation, which can lead to adhesion damage at high temperatures.”

“Our thermal spray and Plasma Transferred Arc (PTA) (Fig. 1) capabilities enable us to refurbish and repair a wide range of components used by local power stations. These include fan blade and steam side spindles, servo motor and rack spindles, stator pump bearing and accumulator housings, fan blade shafts and liners, pump impellers, nose tip liners, deflector rings, control casings, sleeve and rotation plates, sleeves and bushes as well as a range of valves.”

16

Pipes, Pumps and Valves Africa - Jul/Aug 2017

Thermal spraying provides increased resistance to high temperatures, oxidation, traction, cavitation, chemicals and corrosion as well as wear resistance (resulting from erosion, abrasion and sliding). Thermal spraying is the method of applying materials onto a prepared base material by heating particles in the stream of a heat source to create a semi-molten state. Particles are then propelled at high velocity onto a prepared substrate where they adhere via a mechanical bond; particles continue to build until a specified thickness is attained. This spray method, which is considered the ‘cold method of welding’ where high temperatures can be achieved in the heated pocket while the temperature of the part itself usually remains under 100°C, restores worn components to precise original dimensions. “The result is an extension of component service life, and the subsequent increased uptime and improved production translate to significant cost savings for the end-user,” notes Young.

PTA weld / clad hardfacing offers the ideal solution for applications where severe impact and corrosion are

prevalent. Here coatings that can withstand such conditions by providing the necessary protection to the substrate, are required.

The scope of work for various repairs and refurbishments conducted by Thermaspray at eight power stations include: -

PUMPS

“This welding process is used to produce high-quality weld hardfacings (figure 2) of Ni, Co and Fe alloys, as well as tungsten carbide containing grades of the nickel alloy,” continues Young. ”The PTA hardfacings that are metallurgically bonded to the parent material, are able to handle impact, point and/or line loads that a thermal spray coating cannot tolerate.”

Fig 1

Complete refurbishment of Semple Valves, which involved stripping of the valve, pre-machining, stress relief, thermal spraying, PTA welding, NDT, final machining, final grinding, and assembly. Thermaspray also manufactured rings and bushes for the Semple valve from Mehanite material to the client’s specification.

Thermaspray also coated butterfly and ball valves to increase wear and corrosion resistance.

Thermaspray, in a joint venture with Cape Town-based Surcotec, offers an extensive portfolio of engineering and thermal spray coating solutions that extend component lifecycles to assist OEM and end-user clients across southern Africa in reducing costs and increasing production. The companies’ world-class quality wearand corrosion-resistant thermal spray coatings, Plasma Transferred Arc (PTA) cladding and Polymer coatings (in partnership with Plasma Coatings USA and Diamant Metallplastic Germany) are augmented by a host of specialised allied services.

-

The refurbishment of valve spindles, in partnership with a business partner, included pre-grinding, thermal spray coating, final grinding and NDT (DPI) on the coating. The repair and refurbishment conducted on gland boxes demanded pre-machining, thermal spray coating, final machining and final grinding.

-

Refurbishment of valve seats included pre-machining, PTA welding with a Co alloy, and machining to the required dimensions. The job included PTA welding on new seats.

Contact Dr Jan Lourens, Thermaspray,

Pump refurbishment, which was completed in conjunction with a business partner, included machining, grinding, thermal spray coating, and final grinding. Electrical run-outs have also been conducted on these shafts ensuring the quality required.

jlourens@thermaspray.co.za,

-

Tel: +27 (0) 11 316-6520/8/9, Fax: +27 (0) 11 316-7527, www.thermaspray.co.za, Blog: http://thermal-spray.co.za/blog/, YouTube: www.youtube.com/thermaspray

Protect Pumps and Valves, and Extend Service Life with World-Class Surface Coatings and Specialised Welding Solutions Thermaspray and Surcotec’s wide range of surfacing techniques protect components against severe environments (corrosion, erosion, abrasion, sliding, wear, chemicals, temperatures, oxidation, etc.) to extend equipment life cycles, maximise uptime and productivity for lowest total cost of ownership.

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

17

Vaughan Chopper Pumps The Vaughan Chopper Pump is a centrifugal pump with the unique ability of chopping all incoming solids prior to pumping.

PUMPS

T

his not only protects the pump from clogging, but also provides added benefit to downstream components, processes, and the environment.

All wear components are cast steel and heat treated for maximum impact and wear resistance. Combined together, these heavy duty patented components create the ultimate pump for handling severe solids.

This same basic concept has been used in Vaughan’s vertical wet well design for almost a half-century.

Chopping is accomplished by the scissor action of the leading edges of the impeller vanes cutting against the opposing edges of the cutter bar.

All solids are chopped as they enter between the cutter bar and the impeller vanes. The smaller solids are easily pumped by the centrifugal action of the impeller.

Vaughan chopper pumps are not to be confused with other types of brands of chopper pumps, cutter pumps, grinder pumps or comminutors.

Some of the unique patented features specific to Vaughan Chopper Pumps which make the product so dependable are: (Numbers in list below correspond to numbers on diagram) 1.

Vaughan’s unique cartridge style mechanical seal handles the toughest slurries, outperforming standard single-spring seals by reducing problems associated with wrapping or abrasion.

2.

Stray solids trapped in the mechanical seal area are shredded and removed by the impeller vanes turning against the upper cutter.

3.

Solids are chopped by the cupped and sharpened impeller blades turning across the cutter bar, creating a smoothe ‘slicing’ effect. The conditioned slurry is easily pumped through the pump amd piping system without plugging.

4.

The cutter nut cuts stringy materials that can tend to wrap at the pump inlet.

5.

An optional disintegrator tool agitates and breaks up large solids to prevent suction blockage. The tool is removable for stringy solids.

Design Advantages:

18

•

All Vaughan chopper pumps include a written Performance Guarantee – your assurance of clogfree operation.

•

Available in several configurations and sizes.

•

Adaptable to suit most needs for agricultural, municipal and industrial processing applications.

Contact Wim Verhagen

•

Vaughan flow rates range from 12m³/h to 2 725m³/h

Tel: +27 (0) 11 618-3860

•

Only the toughest materials are used for construction: ductile iron, hardened steel, high chrome iron, 316 stainless steel and CD4MCu hardened stainless steel to keep the system running right.

Fax: +27 (0) 11 614-0021

Pipes, Pumps and Valves Africa - Jul/Aug 2017

Monitor Pump & Systems

sales@monitorpumps.co.za www.monitorpumps.co.za

KBI Announces Of Exciting Partnership With Aquflow USA Kirloskar Brothers International (South Africa) (Pty) Ltd (KBI) is excited to announce its recent partnership with a US based Pump manufacturer AquFlow; who has appointed SPP Pumps SA (Pty) Ltd as the exclusive distributor of the AquFlow products in SA June 1, 2017.

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This partnership will enable SPP Pumps permission to promote, advertise, distribute and sell AquFlow metering pumps, accessories and spare parts in the industrial, commercial and municipal markets. “We are very excited about this opportunity to bring metering pumps and related products within the Sub Saharan borders.”- Patrick Hindry, General Manager, Sales & Marketing for SPP Pumps in South Africa. We’re in business to serve the needs and desires of our core customer base and this partnership is aligned with our great purpose of meeting our diverse customer needs.

PUMPS

quFlow was originally founded in 1972 as Hydroflo to manufacture premium chemical metering pumps, this company was acquired by Precision Flow in 2007 and relaunched as AquFlow. They specialises in Hydraulic Diaphragm and Solenoid Metering Pumps. They have an extensive range of metering pumps that comply with API 675 for the Oil and Gas market. Traceability of all parts up to poured metal for castings available upon request. With continued development and refinement, they have the most extensive range of flow capacities, pressure and corrosion resistant materials of construction under one brand. Over the last 40 years they have gained a well-deserved reputation for making high quality pumps that outlast and outperform most competitive models.

Contact Tralone Khoza, SPP Pumps, Tel: +27 (0) 11 393-7177/79, marketing@spppumps.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

19

Slurry Pump Selection Based On Particle Size PUMPS

Craig I Walker - Weir Minerals Australia Ltd.

Understanding the influence of slurry particle size on wear is essential to maximising the life of centrifugal pumps operating in mineral processing plants and for hydrotransport duties. Particle size influences not only the wear rate but also the wear pattern in pumps.

Complicating the situation is the different relative wear rate for different pump parts depending on particle size.

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simple Slurry Wear Type (SWT) number based on particle size and size distribution is proposed as a means for categorising slurry pump wear patterns and optimising pump application and material selection The wear of centrifugal slurry pumps in mineral processing and hydrotransport can be quite severe and is one of the major cost concerns of plant operators. Some typical worn slurry pump parts made from high chrome white iron are shown in Fig. 1.

Erosion wear rates of up to 2 mm/day are not uncommon [1].

Centrifugal slurry pumps are required to handle solid-liquid mixtures with a very wide range of particles extending from sub-micron size clay through to 200 mm and larger cobbles.

Particle size distribution can also vary widely from uniform and narrow (such as graded sand) through to very broad (such as grinding circuit slurries). Slurry particles may also undergo size change due to attrition during the pumping process.

Fig. 1 – Typical worn slurry pump parts (impeller, side liner) made from Cr35 white iron.

The major wearing parts in a slurry pump are the impeller, side liners and casing liner. These are shown with reference to a Warman MC centrifugal pump in Fig. 2.

While many particle properties (including size, shape, hardness, density and concentration) influence pump wear, this work will consider only the effect of particle size as it is the major determinant of wear characteristics. Particle size influences the wear pattern, material performance and relative component wear rate in centrifugal slurry pumps.

Slurry Wear Type (Swt) Based On Particle Size Soil and grain size classification systems abound. Many have different limits to the ranges for a particular classification, albeit not too far apart. Table 1 shows typical ranges and descriptions of mineral particles [2].

20

Fig. 2 – Major wearing components for Warman centrifugal slurry pump.

Mineral slurry particle size is only really usefully understood with reference to a size distribution curve. To summarise this information, it is not uncommon to use the average size or a d50 value (the mesh size through which 50% of the mass of the sample will pass). Other typical slurry particle representations are the d20 and d80 values (the mesh size that passes 20% and 80% respectively).

Particle size range (mm)

Particle description

>200

Boulder

60,0 - 200

Cobbles

2,0 - 60,0

Gravel

0,6 - 2,0

Coarse sand

The Hydraulics Institute Standard [3] uses the d50 particle size to define a range of 4 slurry service rankings defined as Class 1 (light), Class 2 (medium), Class 3 (heavy) and Class 4 (very heavy). This is outlined in the chart shown in Fig. 3. While this

0,06 - 0,6

Fine/medium sand

0,002 - 0,06

Silt

<0,002

Mud/clay

Pipes, Pumps and Valves Africa - Jul/Aug 2017

Table 1 – Particle size descriptors [2].

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

21

PUMPS

SWT

d85 particle size (mm)

Particle descriptor

Size range

Applications

min.

max.

#1

0

0,08

Silt, mud

Graded

Fine tailings, flotation feed, fine coal, concentrate, heavy media, effluent, drilling mud, liquors, chemicals, clay

#2

0,06

2,0

Sand

Uniform

Coarse tailings, flotation feed, thickener u/flow, paste, sand mining, rutile, middlings, scavenger cons, transfer, jig cons, screen u/ flow, spiral cons, desliming

#3

0,6

6,0

Sand and gravel

Fully graded

#4

4,0

200

Gravel and cobbles

Graded or bi-modal (with or without fines)

Mill circuit, hydrotransport, water flush crushing Coarse screen u/flow, gravel, dredging, phosphate matrix, sugar beet, ROM coal, oil sands hydrotransport, DMC feed, codisposal tailings

Table 2 – Proposed Slurry Wear Type (SWT) classification for pumps.

is a useful simplistic approach, it does not take into account the particle size distribution. In addition, the chart may also place too much emphasis on the concentration, the effects of which tend to gradually diminish at greater than 10% by volume because of the interaction between particles [4].

Using a d50 to represent a slurry wear particle size doesn’t take sufficient account of the larger particle sizes. The d50 size is probably adequate to characterise narrow particle size distributions, but not for broad size distributions such as grinding circuit slurries. Erosion is a function of the mass of the impacting particles and it is the larger particles that do the most damage.

The representative particle size for wear for slurries with a broad size (quasi-logarithmic) distribution has been calculated as d85 by Roco and Minani [5]. For many commercial slurries this is close to the weighted mean size recommended by Gandhi and Borse [6].

Fig. 3 – Wear service class from Hydraulics Institute [3].

Based on a wide range of industrial experience, the author has observed that slurry particle size distributions for different pump applications tend to fall into four different broad ranges.

Table 2 lists typical slurry pump applications that have been grouped into bands called Slurry Wear Types (SWT). The d85 size is used as the representative wear particle size and while there is overlap at the boundaries between the SWT based just d85, the shape of the particle size distribution curve is considered to be unique to each SWT. Whilst recognising that the proposed delineation between different SWT is rather arbitrary, it is suggested that the similarity of applications within mineral processing hopefully supports the logic and usefulness of the approach.

Typical particle size distributions for four different slurry pump applications are shown in Fig. 4 with their respective SWT.

Part Wear Patterns And Swt It is difficult to generalise pump part wear patterns because of the many variables that can be an influence. Pump speed, relative flowrate, hydraulic design, orientation (impingement angle) as well as the particle characteristics all have an impact on the appearance of the wear pattern.

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

Fig. 4 – Example particle size distributions for each Slurry Wear Type.

Typical SWT wear

Impeller

SWT#1 fine particle wear is typified by the relatively short wavelength of the surface wear pattern. Most wear patterns in this regime are caused by particles caught in turbulent eddies and impinging onto the pump wet end surfaces at low angles.

Impeller wear for different SWT is shown in Fig. 6. At the finest particle sizes, there is very little leading edge wear, with most wear at trailing edges where flow separates and turbulence and vorticity is highest (Fig. 6a). As particle size increases so does the leading edge wear simply due to particle inertia forces becoming more predominant. Any change in flow direction also sees greater wear with larger particles, such as against the back shroud and pressure face of the pumping vane. This is clearly illustrated by the gouge at the vaneshroud intersection shown in Fig. 6d.

Casing Pump casing wear is shown in Fig. 7 and tends to be a mix of the wear patterns seen with side liners and impellers. For the very largest particles in SW#4 there is significant wear at the cutwater due to direct impingement (Fig. 7d). In the belly of the casing there is ripple and gouge wear where the ripple wavelength appears to be a function of particle size. This latter wear is largely low angle impingement or even sliding bed type wear.

For a particular SWT, the wear patterns may be skewed by the particle size distribution. For example, the wear pattern for coarse SWT #1 slurry may be similar to a fine SWT#2 or a high fine concentration SWT#3.

PUMPS

While the range in particle size for SWT#2 is quite large, the distinguishing feature is the relative uniformity of the particle size. At the smaller end of the particle size range the wear wavelength is small, with larger wavelength evident at the other end of the scale.

Regardless of the specific particle size in this region, the wear pattern displays uniformly distributed gouges (whether small or large).

SWT#3 shows the most complicated wear patterns because it has elements of all the other wear types grouped together. The visual difference with other SWT regimes is dependent on the proportion of smaller particles present (e.g. d20). For slurries with a significant proportion of finer particles the wear pattern tends to display deep isolated gouges on the parts due to turbulent eddies.

For the largest particle sizes SWT#4 is characterised by either mostly smooth surfaces, or long wavelength gouges. In this regime particle inertia forces tend to dominate the fluid drag forces, as the larger particles depart from the flow lines and impinge on surfaces where there is a change of flow direction.

The following illustrates typical wear patterns for each pump part and each SWT.

Side liners Fig. 5 shows the side liner wear patterns for different SWT. The progression of ripple and gouge wavelength is very apparent from SW#1 through #4. For the largest particles the side liner surface is very smooth with only little wear gouge at the perimeter as seen in Fig. 5d.

Particle impingement angles are relatively low with side liner wear.

Most deep gouges are formed by smaller particles trapped in vortex flow rather than large particle direct impingement.

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

23

Swt And White Iron Wear Rates

PUMPS

The major wear components of centrifugal slurry pumps are generally made from either hard high chromium white iron or elastomers (rubber or polyurethane). For the sake of simplicity only hard white irons have been considered in the analysis here.

Slurry particle size influences the relative wear rate of hard white irons because of changes in the wear mechanism from scratching and ploughing with small particles to cracking and fracture with large particles. Walker [7] compared the wear performance of 3 white irons with particles ranging from fine sand (d85=0,04 mm) to coarse garnet (d85=1 mm) using a large scale Coriolis tester. A comparison of the three white irons is shown in Table 3. These are typical of white irons used in slurry pumps.

the Coriolis tester in Fig. 11. The image clearly shows that the carbide cracking in the field application looks very similar to the carbide cracking and spalling in the Cr35 Coriolis test sample.

There are many researchers and material suppliers that produce ranking tables for material wear performance. Many of these tables and bar charts only reference the test procedure in passing and don’t caution the user about extrapolating the data outside of the specific test conditions.

The change in relative wear for the three different particle sizes is shown in Fig. 8. With Cr27 as the reference, it can be seen that CR16 relative wear rate decreases dramatically as particle size increases, while the Cr35 wear rate increases.

For the three alloys, although the carbide volume varies, the matrix properties are similar (both in hardness and composition). Fig. 9 shows the relative wear against carbide volume for both the fine and coarse size particles. For the fine sand erodent, increasing the carbide volume from 22% to 45% reduces the relative wear rate by a factor of 3. This is in line with other researchers’ findings for particles in the 0,25 mm range. Provided the erodent hardness is less than the carbide hardness, the wear resistance increases with increasing carbide volume fraction [9]. However, for the sharp coarse garnet erodent, there is almost no impact of carbide volume on relative wear rate. Taken together the results shown in Figures 8 & 9 would indicate that the matrix properties are dominating with the large particle wear rather than the carbide properties.

Fig. 5 – Typical side liner wear patterns.

Thus, for d85 sharp particles less than 1 mm there is a relationship between wear rate and carbide volume, but at 1 mm (and perhaps greater), this relationship breaks down because of a change in the predominant carbide wear mechanisms from scratching and ploughing to cracking and spalling.

A deep etch SEM photograph of the worn surface of each of the Cr35 samples after the test run with the different erodent particles is shown in Fig. 10.

It is apparent from the deep etch images that the wear mechanisms for the Cr35 white iron change significantly with increase in erodent particle size. Fig. 10a shows the ends of the hexagonal carbide rods as quite smooth compared to the rough cracked ends of the carbides in Fig. 10c. With small particles there is minimal cracking of the carbide, but as erodent particle size increases, carbide cracking prevails as the major wear mechanism.

A deep etched SEM image of the surface of a worn Cr35 white iron casing from a slurry pump in a coarse particle grinding circuit application is shown compared to the sample from

Composition (with Fe remainder)

Material designation ISO21988[8]

C

Cr

Mn

Mo/Ni/Cu

Cr16

3

15

1

Cr27

3

27

Cr35

5

34

Table 3 – White iron sample properties.

24

Fig. 6 – Typical impeller wear patterns.

Pipes, Pumps and Valves Africa - Jul/Aug 2017

Bulk hardness (HV10)

Carbide volume (%)

3

750

22

2

-

730

27

2

1

800

45

C

PO

P -C

Fig. 7 – Typical casing wear patterns.

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CS X

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CP S

MP PU

Fig. 9 – Relative wear rate against carbide volume.

CP 7

MP PU

Fig. 8 – Relative wear rate against particle size.

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Fig. 10 – Deep etch image of worn surface of Cr35 sample from Coriolis test with different particle size.

Pipes, Pumps and Valves Africa - Jul/Aug 2017

25

Fig. 11 – Deep etch image comparison of worn surface of Cr35 iron casing from field and laboratory tests.

PUMPS

Fig. 13 – Major impeller wear point at root of vane (d85=1mm sand) [4].

Fig. 12 – Relative pump part wear for different particle size [4].

The data presented here should help to warn users of such charts about the significant differences in relative wear performance that can occur with particle size. With white irons in particular, an understanding of the impact of microstructure on material wear mechanisms is critical to assessing the likely relative wear performance as particle size changes.

Swt And Relative Component Wear The effect of particle size on the relative wear of pump parts was first explored in detail by Walker et al [4]. As can be seen in Fig. 12, the relative wear of each part changes with particle size. For smaller particles (d85<0,6 mm) the inlet side liner (throatbush) is the high wearing part followed by impeller and then the (volute) casing liner. At larger particle sizes (d85>1 mm), the impeller is the high wearing part and the inlet side liner is the lowest wearing part.

Specifically, the larger particles caused significant wear at points where the flow changed direction. Major impeller wear occurred at the pressure side of the vane at the back shroud, where the flow has to turn through 90 degrees in the meridional plane as shown in Fig. 13. For the smaller particles wear only occurred where there was significant turbulence and/or separation in the flow, such as at trailing tips of blades.

Optimum Pump And Material Selection Over 35 years ago Baker et al [10] outlined a simple pump and material selection system based on particle size. The range of particle sizes considered is shown in Table 4. The definition of what constitutes a Dredge, Gravel, Sand or Slurry pump was not clarified.

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

The shape of the impeller in a centrifugal pump design is largely correlated with the Specific Speed (Ns) which is calculated from the parameters of the pump duty [11]. Designing a centrifugal pump for slurry also requires consideration of wear. To ensure reasonable wear resistance, impeller rotational speeds are limited. So as to achieve reasonable inlet velocities, the ratio of impeller outside diameter to inlet diameter is increased as the head required by the pump is increased. To minimise wear on the vane leading edge the impeller diameter ratio is also increased as the particle size is increased. Further, for extremely large particles, the passage width through the pump must be able to accommodate the possibility of multiple particle wedging.

Each pump part sees predominantly different particle impingement angles that result in different wear rates depending on particle size and the flow around the part. As a result, each part will have a different optimum material selection dependent on the particle impingement characteristics.

Based on the author’s experience, a recommended impeller diameter ratio range that results in acceptable wear life (for any head or particle size) is shown in Table 5. Also included is the corresponding white iron material recommendation.

Conclusions Slurry particle size is a key determinant of the wear pattern and wear rate for centrifugal pumps. By grouping pump duties on the basis of particle size and size distribution, 4 common Slurry Wear Types (SWT) have been identified that give similar pump wear patterns and characteristics. Using the SWT an optimum material recommendation is provided for various impeller diameter ratios and for each of the major wearing components.

Acknowledgements The permission of The Weir Group PLC to publish this paper is gratefully acknowledged.

Warman is a registered trademark of Weir Minerals Australia Ltd.

References [1] [2] [3] [4]

C I Walker, “Aspects of wear in mill circuit pumps”, Proceedings of SAG 2011, Vancouver, Canada (2011).

Field description of soil and rock, Burns et al Ed., NZ Geotechnical Society, (2005).

Hydraulic Institute Standard ANSI/HI 12.1-12.6-2011 “Rotodynamic (centrifugal) slurry pumps – design and application”.

C I Walker, P J Wells and G C Bodkin, “The effect of flowrate and solid particle size on the wear of centrifugal pumps”, 5th International Symposium on Solid Liquid Flows, ASME FED Vol. 189 (1994).

Particle size range (mm)

Particle description

Material

Classification

> 50,0

Cobbles, boulders

Mn steel

Dredge pump

2,0-50,0

Gravel

Cr iron, Mn steel

Gravel pump

0,06-2,0

Sand

Rubber, Cr iron

Sand pump

0,002-0,0,06

Silt

Rubber

Slurry pump

<0,002

Mud/clay

Rubber

Slurry pump

Table 4 – Pump and materials selection from Baker et al [10]

SWT#1

SWT#2

SWT#3

SWT#4

Typical impeller diameter ratio D2/D1 1.8-2.4

2.4-3.2

>3.2

n/a

Head=20-50m

1.8-2.4

2.4-3.2

2.4-3.2

2.4-3.2 (wide)

<1.8

1.8-2.4

1.8-2.4

1.8-2.4 (wide)

Head<20m

Optimum chrome white iron material Throatbush

Cr35

Cr35

Cr35

Cr27

Impeller

Cr35

Cr35

Cr27

Cr16

Volute casing

Cr35

Cr35

Cr35

Cr27

PUMPS

Head>50m

Table 5 – Proposed pump and materials selection.

[5] [6] [7]

[8]

M C Roco and L K Minani, “Effect of particle size distribution and gravitation on wear in centrifugal pump casings”, ASME 89-FE-8, (1989).

B K Ghandi and S V Borse, “Nominal particle size of multi-sized particlulate slurries for evaluataion of erosion wear and effect of fine particles”, WEAR 257 (2004), pp 73-79.

C I Walker, “Influence of particle size and shape on slurry erosion wear of different white irons”, submitted for publication at 21st International Conference on Wear of Materials, California, USA, (2017).

International Standard ISO21988:2006(E), “Abrasion resistant cast irons – classification”.

[9]

G D Nelson, G L F Powell and V M Linton, “Investigation of the wear resistance of high chromium white irons” in Proceedings of the 19th International Conference on Surface Modification Technologies, Minnesota, USA (2005).

[10] P J Baker, B E A Jacobs and S T Bonnington, A Guide to Slurry Pipeline Systems, British Hydromechanics Research Association, Fluid Engineering, UK, (1979).

[11] A J Stepanoff, Centrifugal and axial flow pumps, John Wiley and Sons, NY, (1957). Presented

Contact Weir Minerals, Tel +27 (0) 11 929-2706, www.global.weir

Pipes, Pumps and Valves Africa - Jul/Aug 2017

27

No Recirculation With Krebs Slurrymax PUMPS

The elimination of recirculation within a slurry pump not only lowers power consumption but significantly reduces uneven wear on parts, and this, according to Morne Potgieter, sales and customer service manager of FLSmidth Krebs, equates directly into an overall improved wear life of the pump, lowering spare parts stockholding, downtime and labour costs.

T

he Krebs slurryMAX™ pump incorporates a unique patented feature which enables online adjustment of the critical impeller to suction side clearance and counters the primary leak path that occurs across the suction face of the impeller on conventional designs.

The externally adjustable wear ring allows adjustments to be made while the pump is running, takes up the clearance at the impeller eye. This reduces the suction side recirculation and maintains the design flow while maintaining large clearances near the impeller shroud.

A Krebs slurryMAX tailings pumps.

This clearance at the impeller shroud eliminates the problem that conventional rubber lined pumps experience, namely pressure pulsations caused by the close proximity of the rotating raised expelling vanes to the suction liner, necessary to maintain flow, and the subsequently generated heat in the liner and rubber devulcanisation failure.

Potgieter says that the ability to maintain the clearance between the impeller eye and the suction side of the pump also means that a constant delivery pressure and flow is provided throughout the life of the pump, and this contributes to increasing the life of the impeller.

A Krebs slurryMAX pump in a leach tank application.

“Significantly, the wear ring need only be adjusted up to eight times throughout the life of the wet end parts, contributing to low total cost of ownership for the end user,” Potgieter points out.

The extra-thick rubber lining has rigid reinforcement which prevents collapse onto the rotating impeller under upset vacuum conditions.

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A Krebs slurryMAX pump in a CCD thickener application.

Pipes, Pumps and Valves Africa - Jul/Aug 2017

Impellers are oversized in diameter and available in metal or elastomers.

High pressure casings are available for specific application requirements such as multiple pumps in series.

The pump bearing assembly is fitted with a reverse taper roller bearing which increases the effective load span thereby further improving the life of the unit. The centrifugal pumping action of the taper rollers discharges grease to the outside, preventing ingress of slurry or over greasing of the bearing. Both these have a positive impact on bearing life.

PUMPS

The pump casing is constructed of tough spheroidal graphite iron, while both the casing and suction inlets are heavy duty rubber lined. The impeller is made from either highly abrasion resistant high chrome white iron with a Brinell hardness of 680 to 720, or rubber. Potgieter explains that the high chrome impeller is resistant to tramp metals and capable of higher tip speeds.

The Krebs slurryMAXâ&#x201E;˘ pumps are suitable for applications ranging from mill discharge, SAG mill discharge recirculation, cyclone feed, general transfer of heavy duty abrasive slurries and tailings pumping. The pumps are available in sizes from 75 mm to 500 mm and are used across all commodities including copper, iron ore, gold, oil sands, sand and gravel and for industrial processing.

Contact Terence Osborn, FLSmidth, Tel: +27 (0) 10 210-4820, marinda.kerr@flsmidth.com, A Krebs slurryMAX pump in a CCD thickener underflow pump and discharge line.

www.flsmidth.com

Pipes, Pumps and Valves Africa - Jul/Aug 2017

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PUMPS

Becker Mining SA Has Recently Supplied Five HS Pumps To A Platinum Mine In Limpopo “This contract, for the manufacture of two 8x8-12 HS pumps with “V” belt drives C/W 160 kW motors and three 6x6-18 HS pumps with “V” belt drives C/W 90 kW motors, was delivered prior to the required delivery date,” says Rick Jacobs, Becker Mining SA.

B

ecker Mining SA has recently supplied five HS pumps to a new furnace slag granulation process plant at a Platinum mine in the Limpopo region.

“These robust pumps have been designed for optimum efficiency, low maintenance and extended service life in harsh operating conditions.”

Becker’s HS pump range includes four models - HS (horizontal type), VHS (vertical type), PVS (vertical type) and HTMS (submersible) pumps. These pumps are available in various sizes – from 50 mm to 203 mm units.

The heavy duty, hardened chrome iron construction (650BHN) of the wet end in the HS series significantly increases service life. These pumps have a recessed impeller that allows large abrasive materials to pass through the pump without damaging the impeller,

thereby extending the pump life and service intervals due to reducing wear.

The hydro solids pump arrangements - from direct Vertical spindle range of different sizes with various requirements.

range offers flexible drive drives to various V-belt drives. pumps are manufactured in shaft lengths to suit customer

Contact Taryn Pretorius, Becker Mining South Africa, Tel +27 (0) 11 617-6300 (ext. 2021) Fax2Email +27 (0) 86 536-9901 taryn.pretorius@za.becker-mining.com, www.za.becker-mining.com

Becker Mining SA has recently supplied five pumps to a new furnace slag granulation process plant at a Platinum mine in the Limpopo region. These robust HS pumps have been designed for optimum efficiency, low maintenance and extended service life in harsh operating conditions.

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

EUPSIM Is The Future In Submersible Pumping Technology • • • • •

Data communication without additional signal cable AIntegrated pressure and level measurement Motor temperature measurement Alarm and event messages Protect the motor from over and undervoltage, over and underload phase failure Communication to process control

PUMPS

•

Functions

Our EUPSIM control system has a module built inside the motor that reads how deep the pump unit is in the water, and you can set the control unit to switch the pump off when the water reaches a certain level above the pump so that it does not run dry and destroy itself. The EUPSIM also reads at what temperature the motor is running and under what condition the motor is running. The voltage, amps, of all three phases and power factor are all constantly measured and displayed on the screen. This is the only available globally and it can be built into your control box, providing you use the Oddesse motor.

I don’t think during today’s times, with the rising costs, your company can afford to lose motors for no reason. At the moment the coal mines and Anglo Gold Ashanti are successfully using this system.

Contact Randburg Head Office Tel: +27 (0) 11 792-9550 Qhubani@ukudonsa.co.za or trevor@ukundonsa.co.za, Witbank +27 (0) 73 304-9775 gideon@ukudonsa.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

31

New Close-Coupled Pump From KSB PUMPS

KSB Pumps and Valves recently added the new generation Etabloc close-coupled pump range to its line-up of efficient water pumps.

T

he newly enhanced series comprises 43 pump sizes, which can be driven by either 2-pole or 4-pole motors.

With further additions to the selection chart, the pump size can now be selected even closer to the best efficiency point.

KSB close-coupled pumps have applications in a wide range of industries including agriculture, industrial and municipal water pumping. Different material types and seal and nozzle types available for the range also extends its usage into other materials ranging from foodstuffs, to chemical, waste and a number of other usages.

More versatile According to KSB Pumps and Valves regional sales manager, David Jones, the discharge nozzles are fitted with more connection options for pressure gauges as standard, so several KSB Pumps and Valves new Etabloc pump measurements can be conducted at the same time. The flanges of suction and discharge nozzles are optionally drilled to selecting an electric motor. In line with KSB's common practice for industrial pumps, every pump will be EN 1092 or ASME dimensions, for all materials. supplied to the customer with the impeller diameter A large variety of nozzle positions and installation trimmed exactly to the duty point. Impeller trimming options enables maximum flexibility. Confined gaskets combined with the large range of pump sizes available ensure reliable sealing between pump casing and casing for selection is the only way of keeping the pump set's cover, even in highly varying operating conditions. energy consumption to the minimum necessary.

Another feature of the updated type series is its The latest generation of the Etabloc type series meets particularly service-friendly design. The conical seal strict global standards including the EU requirements chamber, for example, allows easy access and provides of Commission Regulation 547/2012/EU for water more space for maintenance work. The new, spacious pumps. design facilitates dismantling and reassembly of the mechanical seals. Forcing screws provided at the lantern Contact Annett Kriel, make dismantling of the drive train much easier. Easyto-replace casing wear rings protect the impeller and KSB Pumps and Valves, the casing cover from wear.

Tel: +27 (0) 11 876-5600,

32

Low energy

Fax: +27 (0) 11 822-1746,

The drive lantern comes in standardised mating dimensions, offering the operator maximum choice in

www.ksbpumps.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

Annett.Kriel@ksb.com,

ROOTS Rotary Lobe Blowers Robuschi provides premium rotary lobe blowers at varying pressures above atmospheric up to 1,000 mbar (g) and for vacuum duties up to 100 mbar (a) along with a maximum air flow of 25,000 m³/h.

T

PUMPS

here are a large number of models, sizes, options, configurations available providing solutions for most industrial applications.

Their RBS range is an innovative three lobe rotary positive displacement blower equipped with a special low pulse system to reduce pressure pulsations.

Safety The perfect operation of the gears is guaranteed by the oil splash lubrication system with discs coupled to the drive shaft.

Long life bearings Reinforced rolling type, calculated for a theoretical lifespan of 100,000 hours under the most severe operating conditions.

Typing industries were one would use such Roots blowers.

•

Food and Beverage

•

Lime and Cement

•

Plastics

•

Environmental

•

Power Generation – Oil & Gas

•

Wastewater Treatment

•

Chemical – Pharmaceutical

•

General Manufacturing

Should you require a quote or application assistance,

•

Mining

feel free to call us on 0861 VACTEC (822 832) or

•

Pulp – Paper

drop us an email on info@vactech.co.za

Robuschi Roots blowers / exhausters are some of the finest in the world – Made in Italy.

info@vactech.co.za 0861 VACTEC (822 832) www.vactech.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

33

PUMPS

Pump Manufacturer Installs Bushings With Ease A global company dedicated to the manufacture, sales and service of fluid-handling equipment has commented on the ease with which it installed a total of 12 Vesconite Hilube line-shaft bushings and two Vesconite Hilube stuffing box bushings in two 18-m-length pumps.

T

he bushings were ordered from South African Vesconite Hilube polymer manufacturer, Vesconite Bearings, and are to be included in water pumps that provide water in Buenos Aires, Argentina.

“It was so easy to fit the bushings that engineers couldn’t believe it,” comments Leandro Panzini of VesArg, the Argentinian distributor of Vesconite and Vesconite Hilube thermopolymers.

Because thermoplastics harden and soften with temperature, freeze fitting is particularly useful when installing large polymer bushings, bushings with thin walls, or bushings where the length is greater than the shaft diameter.

“The bushings were 300mm long but, after two hours in dry ice, the pump manufacturer fitted the bushings by hand without any help.”

Besides the ease of installation, Vesconite Hilube thermoplastic bushings are often preferred to bronze bushings in pump applications since they are self lubricating, contain no lead, and are hard-wearing.

If the company that installed the bushings had used bronze bushings, a press fit would have been required.

Contact: Mark Opperman, Vesconite, Tel +27 (0) 11 616-1111

Pipe sections with Vesconite Hilube bushings

34

In addition, it would have taken more effort to cool bronze bushings and the pump manufacturer may have needed special clamping to assist with holding the pipe sections in place.

Pipes, Pumps and Valves Africa - Jul/Aug 2017

PUMPS

SMC Sees Early Success With Its Pneumatic Panel Offering In an effort to continuously innovate and provide total engineering solutions while meeting demand, SMC recently expanded its local production offering to include the design and build of electro/ pneumatic control panels for many industrial applications.

From a simple assembly to a complex system, SMC’s sales engineers together with its designer, panel builders and technical teams work with its customers to ensure that panels are designed to specification, within budget and on time.

Most recently, SMC’s team worked with a large automotive manufacturer to alleviate labour time and speed up processes by using one of its custom-built panels to match the application.

The previous application required that the staff on site had to manually maneuver two side panels of a vehicle and have these welded onto the chassis. This was proving labour intensive and safety was of concern.

The team at SMC found the perfect solution to the problem – an SMC panel which houses control valves and operates CP96 cylinders (ISO) and AS flow controls; this allows for an automated process that reduced both welding and labour time.

The customer once again looked to SMC as a one-stop supplier to fulfil their automation needs and the SMC team collaborated to ensure that the project was carried out seamlessly. From a single, once-off special, or a multiple cabinet order, SMC prides itself on having the resources and expertise to build high quality, fully tested control cabinets that deliver outstanding performance and offer peace-ofmind.

For more information contact sales@smcpneumatics.co.za or +27 11 100 5866 Pipes, Pumps and Valves Africa - Jul/Aug 2017

35

BEARINGS

Red Roc Hi-Lift Pinch Valves Offer Unique Inline Rubber Sleeve Afrivalve, a division of eDART Slurry Valves, now offers a simple patented design of the Red Roc Hi-Lift pinch valve allows for inline changing of the rubber sleeve, without the use of lifting equipment and has been granted a patent number 2017/02223.

This unique and innovative feature offers a drastic reduction in downtime and manpower to replace worn sleeves, eliminates the need for lifting and rigging equipment in remote areas as well as removing the pipework and re-alignment requirement The Red Roc Pinch valves, which are manufactured at eDART Slurry Valve’s facilities in Jet Park, Gauteng, range in sizes from DN150-DN600 with larger sizes on request, with pressures ranging from PN10 to PN40 depending on the size.

Afrivalve’s Group Marketing Manager, Gregor Hopton said “The fact that we are a 100% local manufacturer allows us to tailor our valves to exact customer requirements and we can offer the Red Roc Hi-Lift Pinch Valve in higher pressures and sizes than the DN600 to meet specific requirements. Although predominantly used in the mining industry, Red Roc Pinch Valves are suited for use in various other industrial applications such as in the power generation, sewage and effluent and fertilizer industries”.

This unique valve complements the range of slurry isolation knife gate valves and various slurry control valves that eDART manufacture locally in Jet Park, Gauteng.

A demonstration video is available at www.edart.co.za

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

Afrivalve Expands C-Tech Knife Gate Valve Range Afrivalve, the sales division of specialist valve manufacturer eDART Slurry Valves based in Johannesburg, recently delivered DN800 C-Tech valves to a customer in Africa for use on a mineral processing plant.

D

VALVES

ue to the recent expansion in factory facilities, Afrivalve now manufacture up to DN800 as a standard with larger sizes upon request.

Group Marketing Manager, Greg Hopton said “Being a local manufacturer gives us the flexibility to give the customer exactly what they need. With mining and heavy industrial applications having their own complex challenges, we are able to tailor-make the valves accordingly. We choose our materials for construction based on customer requirements and budget. For instance, we can offer SAF2205 wetted parts with a mild steel pedestal and 304SS actuator. The combinations are endless and we are here to ensure that our customers are supplied with the combination that meets their requirements completely”.

“We believe we offer the best solutions available, whether its corrosion or abrasive, or a combination of both. We can also cater for high temperature applications, as well as supply the valves with our in-house pneumatic actuators to suit the application with fail safe packages where needed” said Hopton.

Afrivalve stocks a full range of instrumentation that compliments their actuators. Additionally, the company can supply manual hand wheel, manual gearbox, electric and hydraulic actuators. Valves are available up to PN16. For applications requiring higher pressures, Afrivalve’s Red Roc pinch valve would offer the preferred solution.

Contact Gregor Hopton, Afrivalve Tel: +27 (0) 11 791-1411, gregh@afrivalve.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

37

PIPES

Wide Range Of Components For Advanced Subsoil Drainage Systems Fibertex supplies a wide range of components for advanced subsoil drainage systems, designed for use in various industries, including civil engineering, construction and agriculture.

I

ncluded in this range are Drainex slotted drainage pipes, which are used in conjunction with Fibertex geotextiles and composite drainage systems that encompass geonets, fin drains and wick drains.

“Drainex pipes are manufactured from high density polyethylene (HDPE) which is a chemically resistant polymer, with resistance to acids or alkali attack. These durable drainage pipes also offer high impact resistance and are UV stabilised, ensuring extended service life in arduous environments,” says Darryn Meisel, national sales director: geosynthetics, Fibertex SA. “These drainage pipes are bedded and side filled with filter material and properly compacted surrounding soil, to form a complete pipe-soil system. This robust structure can withstand loads in excess of 150 kN/m from soil pressure and other superimposed loads.”

Drainex pipes have a double wall sandwich construction, with a corrugated external wall and a smooth inner wall, with a low coefficient of friction. This design combines high ring stiffness (>450kPa), with excellent flow characteristics, allowing for the optimum utilisation of pipe diameter.

Drainage perforations are created in the valley of the corrugations to protect the pipe from blockage from drainage aggregate.

Drainex is available in diameters of 75 mm, 110 mm or 160 mm, in coils and 6 metre lengths. Push fit couplings and profiled sealing

38

rings ensure reliable joining and watertight sealing of Drainex pipefittings.

Fibertex supplies a comprehensive range of other geosynthetic products into the civil engineering and mining industries. These products include nonwoven and woven geotextiles, gabions and mattresses, geosynthetic clay liners, composite cuspated drainage and leak detection systems, erosion control

Pipes, Pumps and Valves Africa - Jul/Aug 2017

blankets and cellular confinement solutions.

Contact Darryn Meisel, National Sales Director, Geosynthetics, Fibertex South Africa, Tel: (0) 11 965-0205, darryn@geotextilesafrica.co.za, www.fibertex.co.za, www.geotextilesafrica.co.za

New Techniques In Casting Operations PCS Foundry is today seen as one of the most significant suppliers to the pump, valve, steel, petrochemical, cement and paper and pulp industries.

PCS Foundry is proud to be a Level 4 B-BBEE (BroadBased Black Economic Empowerment) Contributor and continuously improving our score rates.

PCS Foundry use a variety of new techniques in our casting operations such as 3-D scanning and printing of moulds and cores. PCS foundry has its own unique semiautomatic moulding line capable of producing moulds of up to 1.2 wide by 2.5 long ensuring a shorter lead-time on high volume products.

PCS Foundry has develop a new facility to expand its operations and create extra capacity. This gives the customers the opportunity of a one stop shop.

PCS Foundry is equipped with a modern laboratory

ensuring that all metals are produce to international standards.

Our pattern shop and full-time patternmakers allow us to provide our customers complete in-house facilities for patternmaking. The pattern shop also repair existing customer patterns. We also have pattern stores with the capacity to accommodate all our customersâ&#x20AC;&#x2122; patterns inhouse.

FOUNDRY

P

CS is one of the few foundries that has the capability to supply a full range of industrial castings to industries in stainless steel, high alloys, carbon steel, with a wide range of ASTM standards. PCS Foundry operates in accordance with established quality assurance systems SABS ISO 9001:2008, with 32 yearsâ&#x20AC;&#x2122; experience and still the leading foundry in producing high quality non-ferrous(Brass, Copper, Bronze and Aluminium) and ferrous (Stainless Steel, Steel, SG and Cast Irons) castings for the pump and valve industry in South Africa.

Pcs is equipped with 3 induction furnaces with the melting capacity of 400 kg, 750kg and 2000kg and cast iron furnace producing 3000kg per hour.

PSC Foundry provide alloy steel and nickel-based components using high quality raw materials: Carbon & low alloy steel castings, Stainless steel castings, Duplex steel castings, Nickel based alloy castings Heat and wear resistant alloys.

Contact Connie Schoeman, PCS Foundry, Tel:+27 (0) 11 740-9814/5/6, Fax: +27 (0) 87 940-1627, Cell: +27 (0) 82 598-9298 connie@pcsfoundry.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

39

FOUNDRY

From A Humble Beginning, Beginning A Business Of Pride, Quality And Customer Commitment Has Been Established

Viking Foundry was founded in 1994. Viking Foundry was started with a 250kg Radyne furnace which was very much against the norm in those days.

T

hrough extreme hard work and perseverance, the company has now progressed to being able to cast up to 6 000kg. Son and Father, Grant and George Estman, combined their many years of foundry experience to establish Viking, And now Father and Son Grant and Greg Estman look forward to the future of Viking A massive boost for Viking in the beginning was their ability to cast a very diverse range of materials in small quantities in a very short turnover time. This same ability has been carried forward to today, which has always enabled great customer satisfaction.

By sticking to strong foundry and business principles, Viking has grown into a business boasting four furnaces and a staff compliment of 100 people. Making it one of the largest independent owned and operated foundries in South Africa. Vikingâ&#x20AC;&#x2122;s total capacity is 200 tons per month As it was on the first day of opening the commitment Grant Estman and his team have had towards quality and customer service remains unwavering.

Viking Foundry looks forward to the next twenty three years (and beyond) with much enthusiasm and determinationâ&#x20AC;Ś For the past twenty years Viking Foundry has been able to offer quality and service to several large organizations such as APE Pumps, Tenova, Cementation, MMD Mining and Kamatsu. and yet have still been able to assist small companies where required. We pride ourselves on quality and delivery, as well as approachability. Breakdown castings are one of our services.

Contact Viking Foundry Tel: +27 (0) 11 873-5093, Cell: +27 (0) 82 445-2626 sales@vfdy.co.za, www.vikingfdy.co.za 40

Pipes, Pumps and Valves Africa - Jul/Aug 2017

a Humble Beginnings, a Business of Pride, Quality and Customer Commitment has been Established

FOUNDRY

VIKING FOUNDRY (PTY) LTD Tel : 011 873 5093 Cell : 082 445 2626 Fax : 011 873 5695

sales@vfdy.co.za www.vikingfdy.co.za Pipes, Pumps and Valves Africa - Jul/Aug 2017

41

ADVERTISE YOUR BUSINESS IN THE

MARKET PLACE The Market Place is divided into easy to read colour coded sections to help you quickly find what you need

VACANCY OPPORTUNITIES DEALER LOCATOR PRODUCTS, PARTS AND ACCESSORIES RENTALS SAFETY, TRAINING AND INDUSTRY SERVICES MAINTENANCE & REFURBISHMENT FOUNDRIES Tel: +27 (0) 11 475-0010 Cell: +27 (0) 83 281-5761

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Pipes, Pumps and Valves Africa - Jul/Aug 2017

SIZE A4 (262mm x 185mm) 1/2 Vertical (262mm x 90mm) 1/2 Horizontal (185mm x 129mm) 1/4 Page (129mm x 90mm)

info@pumpsandvalves.co.za www.pumpsandvalves.co.za

PUMPS ANSI PROCESS PUMPS

DIAPHRAGM PUMPS

HORIZONTAL SPLIT CASE PUMPS

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

Unique Engineering T: +27 (0) 11 826 6111 F: +27 (0) 11 826 6162 E: sales@uniqueeng.co.za W: www.uniqueeng.co.za END SUCTION PUMPS

Air & Vacuum Technologies T: +27 (0) 861 822-832) +27 (0) 11 318 3241/2/3/4/5 F: +27 (0) 86 522-9188 E: burnm@vactech.co.za W: www.vactech.co.za

MOBILE PUMPS

Rocktuff Pumps and Mining Supplies T: +27 (0) 13 690-2597 F: +27 (0) 13 690-2269 E: rocktuffpump@lantic.net W: www.rocktuff.co.za MULTISTAGE PUMPS

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

Monitor Pumps & Systems T: +27 (0) 11 618-3860 F: +27 (0) 11 614-0021 E: sales@monitorpumps.co.za W: www.monitorpumps.co.za

Monitor Pumps & Systems T: +27 (0) 11 618-3860 F: +27 (0) 11 614-0021 E: sales@monitorpumps.co.za W: www.monitorpumps.co.za

T: +27 (0) 21 950 4111 F: +27 (0) 21 950 4208 E: alfred.andrag@agrico.co.za W: www.agrico.co.za

CENTRIFUGAL PUMPS

SAM Engineering

Braybar Pumps (Pty) Ltd T: +27 (0) 11 393-7177/79 F: +27 (0) 86 425-7595 E: sales@braybarpumps.co.za W: www.braybarpumps.co.za

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

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

Braybar Pumps (Pty) Ltd T: +27 (0) 11 393-7177/79 F: +27 (0) 86 425-7595 E: sales@braybarpumps.co.za W: www.braybarpumps.co.za

PISTON PUMPS

Hawk High Pressure Pumps SPP Pumps SA (Pty) Ltd

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) 11 393-7179 F: +27 (0) 86 425-7595 E: sales@spppumps.co.za W: www.spppumps.com FLEXIBLE IMPELLER PUMPS

Air & Vacuum Technologies T: +27 (0) 861 822-832) +27 (0) 11 318 3241/2/3/4/5 F: +27 (0) 86 522-9188 E: burnm@vactech.co.za W: www.vactech.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

HIGH PRESSURE PUMPS

Hawk High Pressure Pumps Stewarts & Lloyds (Pty) Ltd T: +27 (0) 11 917-0778 F: +27 (0) 11 917-0769 E: peterk@sltrading.co.za W: www.stewartsandlloyds.co.za

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

METERING PUMPS

CHICK HENDERSON Chick Henderson T: +27 (0) 11 640-1400 F: +27 (0) 624-1432 E: rob@chickhenderson.co.za W: www.chickhenderson.co.za

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

Hawk High Pressure Pumps

Monitor Pumps & Systems T: +27 (0) 11 618-3860 F: +27 (0) 11 614-0021 E: sales@monitorpumps.co.za W: www.monitorpumps.co.za

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

CHICK HENDERSON

Seko (Pty) Ltd T: +27 (0) 11 704-6589 F: +27 (0) 11 704-6588 E: m.varkevisser@seko.com W: www.seko.com

Chick Henderson T: +27 (0) 11 640-1400 F: +27 (0) 624-1432 E: rob@chickhenderson.co.za W: www.chickhenderson.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

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PUMPS TRASH PUMPS

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

Walter Meano Engineering FLSmidth Krebs T: +27 (0) 10 210-4750 E: willie.vanwyk@flsmidth.com W: www.flsmidth.com

PUMP CASTINGS

Hizonex Ukuthela Foundry Projects T: +27 (0) 12 719-8860 F: +27 (0) 86 239-2597 E: ukuthela@live.co.za

SELF-PRIMING PUMPS

T: +27 (0) 12 666-0904/5 E: sales@pumpab.co.za W: www.pumpandabrasion.co.za SUBMERSIBLE PUMPS

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

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

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

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

SLURRY PUMPS

T: +27 (0) 16 362-2571 F: +27 (0) 16 362-0635 E: bovugroup@telkomsa.net W: www.bovu-pumps.co.za

APE Pumps

T: +27 (0) 11 393-7179 F: +27 (0) 86 425-7595 E: sales@spppumps.co.za W: www.spppumps.com VANE PUMPS

vacuum pumps and valves

SA Biotech

T: +27 (0) 11 824-4810 F: +27 (0) 11 824-2770 E: apepumps@mweb.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

T: +27 (0) 11 938-3581 F: +27 (0) 86 586-8501 E: info@sabiotech.co.za W: www.sabiotech.co.za VERTICAL SUMP PUMPS

SAMCO PUMPS (Pty) Ltd T: +27 35 751-1202 F: +27 35 751-1204 E: joffre@samcopumps.com W: www.samcopumps.com WELL PUMPS

KSB (Pty) Ltd

Walter Meano Engineering VersaFlo VSE Pumps Bovu Pumps

VERTICAL TURBINE PUMPS

VACUUM PUMPS

SPP Pumps SA (Pty) Ltd

Pump and Abrasion Technologies T: +27 (0) 11 966-8009 F: +27 (0) 86 542-2215 E: rob@dockpro.co.za W: www.dockpro.co.za

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

T: +27 (0) 87 550-1984 F: +27 (0) 86 723-5429 E: maritzrenee@gmail.com W: www.hizonex.co.za

PUMP PONTOONS / FLOATING WALKWAYS

DOCKPRO (Pty) Ltd.

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

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

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

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

C.R.I Pumps S.A. (Pty) Ltd T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri@cripumps.co.za W: www.cripumps.co.za

RNE Pumps (Pty) Ltd T: +27 (0) 11 452-3528 F: +27 (0) 82 612-0358 E: mark@rnepumps.com W: www.rnepumps.com

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@cripumps.co.za W: www.cripumps.co.za 44

Stewarts & Lloyds (Pty) Ltd T: +27 (0) 11 917-0778 F: +27 (0) 11 917-0769 E: peterk@sltrading.co.za W: www.stewartsandlloyds.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

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

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

VALVES AIR VALVES

CHECK VALVES

Valcon Valve & Controls Agrico T: +27 (0) 21 950 4111 F: +27 (0) 21 950 4208 E: alfred.andrag@agrico.co.za W: www.agrico.co.za

T: +27 (0) 11 453-7537 F: +27 (0) 11 453-6056 E: nick@valcon.co.za Web: www.valcon.co.za BUTTERFLY VALVES

Invincible Valves (Pty) Ltd C.R.I Pumps S.A. (Pty) Ltd T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri@cripumps.co.za W: www.cripumps.co.za

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

Rotork Africa T: +27 (0) 11 453-9741 (Jhb) T: +27 (0) 21 556-4677 (CT) E: juan.oglesby@rotork.com W: www.rotork.com

Tectra Automation Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za

KayTar Valves T: +27 (0) 21 987-8292 E: clinton@kaytarvalves.co.za W: www.kaytarvalves.co.za

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

Pleix-Quip Africa T: +27 (0) 11 736-4994 F: +27 (0) 11 736-6130 E: tiaans@pleixquip.co.za W: www.pleixquip.co.za

T: +27 (0) 11 394-2066 F: +27 (0) 11 394-2476 E: sales1@industrialvalve.co.za W: www.industrialvalve.co.za

T: +27 (0) 11 412 4536/1665 E: info@minetrack.co.za W: www.minetrack.co.za

Pleix-Quip Africa T: +27 (0) 11 736-4994 F: +27 (0) 11 736-6130 E: tiaans@pleixquip.co.za W: www.pleixquip.co.za

Tectra Automation Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za

Tectra Automation Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za

Bearing Man Group (BMG) T: +27 (0) 11 620-1500 E: fluidtech@bmgworld.net W: www.bmgworld.net

C.R.I Pumps S.A. (Pty) Ltd T: +27 (0) 11 805-8631 F: +27 (0) 11 805-8630 E: cri@cripumps.co.za W: www.cripumps.co.za

CONTROL VALVES

Invincible Valves (Pty) Ltd KSB (Pty) Ltd Tectra Automation

Mine Track & Tools (Pty) Ltd

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

KSB (Pty) Ltd

BALL VALVES

Industrial Valves & Engineering Supplies (Pty) Ltd

Invincible Valves (Pty) Ltd

Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za

VAG-Valves South Africa Klamflex Pipe Couplings T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com

Valcon Valve & Controls

T: +27 (0) 11 453-7537 F: +27 (0) 11 453-6056 E: nick@valcon.co.za Web: www.valcon.co.za

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

VAG-Valves South Africa Klamflex Pipe Couplings T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com

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

Stewarts & Lloyds (Pty) Ltd T: +27 (0) 11 917-0778 F: +27 (0) 11 917-0769 E: peterk@sltrading.co.za W: www.stewartsandlloyds.co.za

DIAPHRAGM VALVES

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

VAG-Valves South Africa Klamflex Pipe Couplings T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com

Pipes, Pumps and Valves Africa - Jul/Aug 2017

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VALVES KNIFE GATE VALVES

ACCESSORIES

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

T: +27 (0) 11 842-8300 F: +27 (0) 11 827-8663 E: gareth.langton@klinger.co.za W: www.klinger.co.za ACTUATORS

MECHANICAL PACKING

KLINGER South Africa T: +27 (0) 11 842-8300 F: +27 (0) 11 827-8663 E: gareth.langton@klinger.co.za W: www.klinger.co.za PIPES

Pleix-Quip Africa 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 PLUG VALVES

T: +27 (0) 11 736-4994 F: +27 (0) 11 736-6130 E: tiaans@pleixquip.co.za W: www.pleixquip.co.za

Agrico T: +27 (0) 21 950 4111 F: +27 (0) 21 950 4208 E: alfred.andrag@agrico.co.za W: www.agrico.co.za

Rotork Africa Tel: +27 (0) 11 453-9741 (Jhb) Tel: +27 (0) 21 556-4677 (CT) PNEUMATIC - DOUBLE Email: juan.oglesby@rotork.com ACTING Web: www.rotork.com

FOUNDRIES

Tectra Automation Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za

KEW Foundries

Tectra Automation Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za ENGINEERED PLASTICS

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

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

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 SLEEVE VALVES

KLINGER South Africa T: +27 (0) 11 842-8300 F: +27 (0) 11 827-8663 E: gareth.langton@klinger.co.za W: www.klinger.co.za MANUAL

VAG-Valves South Africa Klamflex Pipe Couplings T: +27 (0) 11 762-5326 F: +27 (0) 11 762-5674 E: r.loggerenberg@vag-group.com W: www.vag-group.com VALVES CASTINGS

Tectra Automation Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za

PCS Foundries

Tectra Automation Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za PNEUMATIC - SPRING RETURN

T: +27 (0) 11 740-9814/5/6 F: +27 (0) 87 940-1627 C: +27 (0) 82 598-9298 E: connie@pcsfoundry.co.za

Viking Foundry (Pty) Ltd T: +27 (0) 11 873-5093 F: +27 (0) 11 873-5695 E: sales@vfdy.co.za W: www.vikingfdy.co.za HOSES

CHICK HENDERSON

Ukuthela Foundry Projects T: +27 (0) 12 719-8860 F: +27 (0) 86 239-2597 E: ukuthela@live.co.za 46

Pipes, Pumps and Valves Africa - Jul/Aug 2017

Tectra Automation

Chick Henderson

Tel: +27 (0) 11 971-9400 Fax: +27 (0) 11 971-9440 Email: malan.bosman@tectra.co.za Web: www.hytecgroup.co.za

T: +27 (0) 11 640-1400 F: +27 (0) 624-1432 E: rob@chickhenderson.co.za W: www.chickhenderson.co.za

Pipes, Pumps and Valves Africa - Jul/Aug 2017

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APE pumps Pumps at the heart of africa Mining

Manufacturers of: Vertical industrial turbine pumps Multi-stage high pressure pumps Split casing pumps End suction pumps Petrochemicals

Vertical sump pumps API 610 pumps

Power Generation

26 Nagington Road, Wadeville Germiston 1400, South Africa Tel +27 11 824 4810 | Fax +27 11 824 2770

Waste Water processing

PO Box 14733, Wadeville 1422, South Africa Email: apepumps@mweb.co.za Website: www.apepumps.co.za

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Pipes, Pumps and Valves Africa - Jul/Aug 2017