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A number of important decisions are now left to the discretion of administrators in ECSA who have minimal experience or competence to undertake this responsibility

THE SOUTH AFRICAN MECHANICAL ENGINEER

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S MECHANICAL A ENGINEER

Produced by: PROMECH PUBLISHING, P O Box 373, Pinegowrie, Official Publication of THE SA INSTITUTION OF MECHANICAL ENGINEERING 2123, Republic of South Africa and endorsed by: Tel: (011) 781-1401, Fax: (011) 781-1403 Email: samecheng@promech.co.za, www.promech.co.za Managing Editor Susan Custers Editorial Contributors Liesl Venter/Patricia Holburn Advertising Sales: Louise Cresswell Cell: 071 886 1263 DTP Anne Rotteglia Circulation Belinda Siegruhn

Subscriptions Please email us at accounts@promech.co.za if you wish to subscribe to “SA Mechanical Engineer” at R550,00 (excl postage and VAT) per year; R1 380,00 per year for Africa/Overseas. Disclaimer

PROMECH Publishing and The South African Institution of Mechanical Engineering as well as any other body do not take responsibility for the opinions expressed by individuals.

Printed by: Typo Colour Printing, Tel: (011) 402-3468/9 FSC (Forestry Stewardship Accreditation)

            

CONSULTING ENGINEERS OF SA CORROSION INSTITUTE OF SA INSTITUTE FOR CERTIFICATED MECHANICAL AND ELECTRICAL ENGINEERS NATIONAL SOCIETY OF BLACK ENGINEERS NUCLEAR INSTITUTE SA ASSOCIATION FOR ENERGY EFFICIENCY SA CAPITAL EQUIPMENT EXPORT COUNCIL SA INSTITUTE FOR NON-DESTRUCTIVE TESTING SA INSTITUTE OF TRIBOLOGY SA PLASTIC PIPE MANUFACTURERS ASSOCIATION SA PUMP MANUFACTURERS ASSOCIATION SA VALVE AND ACTUATORS MANUFACTURERS ASSOCIATION VALVE & ACTUATOR MANUFACTURERS CLUSTER OF SA

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Council 2016 - 2018 Office Bearers President............................................ Prof JL van Niekerk (Wikus) Vice President........................................................ A Roos (Andre) National Treasurer...................................................G van den Berg

Branch Chairpersons Central ................................................................. C Kruger (Carel) Eastern Cape........................................... G van den Berg (Gideon) KwaZulu Natal .. Dr J Padayachee (Jared)Mpumalanga Highveld . N Lecordier (Noel) Vaal......................................................... Prof LM Masu (Leonard) Western Cape ..................................................S Pietrangeli (Sven)

Portfolios: Education (Universities of Technology).............E Zawilska (Ewa) Communications and Marketing..................G Bartholomew (Bart) Technology Programme..................................... SZ Hrabar (Steve)

Chief Executive Officer: Vaughan Rimbault National Offic e Manager: Anisa Nanabhay PO Box 511, Bruma, 2026 Tel: (011) 615-5660 Email: info@saimeche.org.za Website: www.saimeche.org.za Membership Email: membership@saimeche.org.za

Company Affiliates Autodesk as represented by Worldsview Technologies

Osborn Engineered Products SA (Pty) Ltd

Ainsworth Engineering (Pty) Ltd

PaCMan Projects & Maintenance

Alstom Power Service SA (Pty) Ltd

Plant Design & Project Services (Pty) Limited (PDPS)

Babcock Ntuthuko Engineering (Pty) Ltd

PPS Insurance Co Limited

Bosch Projects (Pty) Ltd

Rotek Engineering

DCD Group (Pty) Ltd

S.A.M.E Water (Pty) Ltd

Exxaro Resources (Pty) Ltd

SA Power Services (Pty) Ltd

Festo (Pty) Ltd

Sasol Technology (Pty) Ltd

Fluor SA (Pty) Ltd

SEW Eurodrive

Green Plan Consultants (Pty) Ltd

Siemens Ltd

Hatch Africa (Pty) Ltd Howden Power (a div of Howden Africa) Howden Projects (a div of James Howden) Kelvion Thermal Solutions (Pty) Ltd MBE Minerals (SA) (Pty) Ltd Megchem

Spirax Sarco (Pty) Ltd Tenova Mining and Minerals SA ThyssenKrupp Industrial Solutions SA (Pty) Ltd Ultra-Flow Engineering Services CC Vital Engineering (Pty) Ltd Weir Minerals Africa Winder Controls (Pty) Ltd

Mod-U-Flow CC

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COVER STORY

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COVER STORY

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Chris Reay

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PIPES, PUMPS + VALVES

The right bearing, proper lubrication, a good sealing system and monitoring pump health performance will help to optimise pump performance

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June 2017

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PIPES, PUMPS + VALVES

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PIPES, PUMPS + VALVES

Kevin Roelofse, product manager for dewatering pumps

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Sassda Executive Director, John Tarboton

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CARBON COMPOSITE WHEEL

Martin Badenhorst shows off the carbon composite wheels he designed and manufactured for an eco-car as part of his research dissertation for a Master of Engineering degree at the Nelson Mandela Metropolitan University

Carbon composite wheels

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CARBON COMPOSITE WHEEL

The eco-car in action with its bespoke designed carbon composite wheels

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THE SOUTH AFRICAN MECHANICAL ENGINEER

10247 - KITE 2017 BUL HANDLING AD 267X90 - PATHS.indd 1

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June 2017


Ian Fraser, Managing Director of RTS Africa Engineering and Eric Dabe, Sales Director for Nel Hydrogen

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Doug Herschell, member of the Executive Committee with Patrick Swan, Vice President

Gerard Perumal, SAIT Executive Committee member, with Gill Fuller, SAIT secretary

Itumeleng Block receiving the SAIT Student Award from Thomas Surmon, President of The SAIT

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June 2017


Chris Philips, chartered accountant to The SAIT, with his wife, Joyce.

Dave Gamble, member of the SAIT Executive Committee, with his wife, Barbara

Students and SAIT members relaxing before the dinner

Anton von Knoblauch receiving the Best Technical Presentation Award

Students with Annalie Lombard of Eskom and her husband, Gert

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Hass industrial custom-made hearing protection devices

Omron’s mobile robotic inspection device

Turniptool rivet nuts and pop rivets

Loadtech’s LT2006 Ezee-Mount load cell

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Stab-a-Load inverter

Vesconite bushings and wear plates

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FOOD PROCESSING

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FOOD PROCESSING

Dedicated to Brilliant Service

NO TIME FOR DOWNTIME BMG brings together the world's leading brands of gear drives, electric motors and electronic drives and offer integrated drive solutions and vast technical expertise to ensure reduced power consumption and maximised up-time. For more information, contact your nearest BMG branch.

BEARINGS • SEALS • POWER TRANSMISSION • DRIVES & MOTORS • MATERIALS HANDLING • FASTENERS & TOOLS HYDRAULICS • PNEUMATICS • FILTRATION • LUBRICATION • VALVES • TECHNICAL RESOURCES • FIELD SERVICES

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THE SOUTH AFRICAN MECHANICAL ENGINEER BMG-DRI25052017 - BMT

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MARKET FORUM

A bird’s eye view of the reverse-pulse ESP conversion provided and installed recently by John Thompson Air Pollution Control at PPC’s Dwaalboom cement factory near Thabazimbi

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MARKET FORUM

Theo Mashego, Unidrive MD

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havas 14530/E

MARKET FORUM

RARE IS REWARDING The Narina Trogon - One of Africa’s most elusive birds. A rare breed indeed. Rather like graduate professionals. Contact your PPS-accredited financial adviser or visit pps.co.za to see if you qualify.

PPS is an authorised Financial Services Provider.

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MARKET FORUM

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FCB CAPE TOWN 10013882CT/E

MARKET FORUM

Keeping Africa running smoothly. Engen is committed to an African success story. In Africa, industries operate under extreme conditions different from any other place in the world. That’s why we do more to develop our tailor-made range of lubricants. We use top-of-the-line technology and only the best ingredients. The result is an advanced technology product that meets industry requirements and reliability expectations. And our dedicated team on the ground ensures that you have access to what you need when you need it. Contact the Engen Customer Service Centre (CSC): +27 21 403 5090 or visit www.engenoil.com.

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MARKET FORUM

Omron Electronics solar specialist, Ross Allan

Suppliers of pumps and valves to the mining and industrial sectors for over 60 years. Stockists of Tianjin small submersible, vertical multi-stage and close coupled water pumps. Suppliers of the following: M+P Split Casing Pump

Multi-stage Pump

E.I.M.

Viking Gear Pump

Tel: 011 824 4810

Fax: 011 824 2770

Web: www.matherandplatt.com

26 Nagington Road, Wadeville, 1422, Gauteng mather&platt A5.indd 1

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June 2017

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MARKET FORUM

On the Move

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Jacqueline Brown

Captain Vernal Jones

Tandi Lebakeng

Mpumi Dweba

THE SOUTH AFRICAN MECHANICAL ENGINEER

VOL 67

June 2017


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 excellent 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. 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: 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: 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.

Invincible Valves (Pty) Ltd

If it's not INVAL®, it's not Invincible 33 Shaft Road, Knights, Germiston TEL: +27 (0) 11 822 1777 | FAX: +27 (0) 11 822 3666 EMAIL: enquiries@invalve.co.za | WEB: www.invalve.co.za


Expertise

Quality

Reliability

KSB

HG - The intelligent pump series For any plant or system to be truly efficient, its individual components must be designed for efficiency too. Boiler feed pumps in power stations consume typically 3 - 5% of their unit's power output. Consequently, any improvement in their efficiency and energy balance will directly enhance the economic efficiency of the entire plant. • • •

Pumping boiler feedwater and condensate in industrial facilities Pumping cold water in snowmakers High-pressure pumping in descaling installations

High-pressure water generation for industrial processes

www.ksbpumps.com Tel: +27-11-876-5600

HGC Pump in Boiler Water application

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