MechChem Africa September-October 2020

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CONTENTS Maintenance and asset management 6 Integrated bearing and power transmission solutions for rotating equipment About the integrated nature of SKF solutions around the rotating shaft, which include bearings, power transmission products, seals, lubrication, condition monitoring and maintenance services. 8 Brittle fracture: what to watch out for

Published bimonthly by Crown Publications (Pty) Ltd Cnr Theunis and Sovereign Streets Bedford Gardens 2007 PO Box 140, Bedfordview, 2008 Tel: +27 11 622 4770 e-mail: mechchemafrica@crown.co.za www.mechchemafricamagazine.co.za Editor: Peter Middleton Design: Katlego Montsho Publisher: Karen Grant Deputy publisher: Wilhelm du Plessis Circulation: Brenda Grossmann The views expressed in this journal are not necessarily those of the publisher or the editors. e-mail: peterm@crown.co.za Advertising: Elmarie Stonell e-mail: elmaries@crown.co.za

10 Specialist diagnosis and repair for Cat injection systems 11 Surveys and condition monitoring of process valves crucial Minerals processing and materials handling 12 Multotec advocates joining hands to advance process technology

The age of digital technology holds potential for equipment performance in the field of mineral processing,but,according to Thomas Holtz of Multotec, little progress will be made if equipment suppliers continue to work only on their own. 15 New life for FLS stacker reclaimer 17 Trio ® crushers boost capacity in Oman Corrosion control and coatings 18 Stainless steel: the cost competitive corrosion solution Columbus Stainless, the only fully integrated single site stainless steel producer inAfrica, outlines the common stainless steel grades and highlights the value of the material for the manufacturing industry. Pump systems, pipes valves and seals 20 Pump systems and training: a new and better normal In response to lockdown and the associated rise in remote communication and webinar solutions, UNIDO International Pump Expert, Harry Rosen, discusses the emerging ‘new and better normal’ for training pumping specialists in South Africa. MechChem Africa talks to Grundfos’ Bennie Thiart about the company’s iSolutions offering, including smart pumps and dosing systems for water treatment;and the company’s ongoing success at the NooitgedachtWaterTreatmentWorks. 30 Good water management for profit and performance Innovative engineering 38 Cogeneration: the smart move for process heat users Leandro Magro of Zest WEG argues the case for adding cogenerating TGM WEG turbine generator systems at plants that already have boilers producing steam for process heat. Regulars 2 Peter’s comment: HVAC and COVID-19 4 On the cover: The Festo Core Product Range: Stars in Automation Adrian Bromfield highlights Festo’s Core Product Range, a step towards becoming the partner of choice for automa- tion companies. 32 Product and industry news 40 Back page: Mobile and intelligent ‘cobots’ 23 Advanced and integrated pumping solutions 24 Wear life improvements for Warman AH pump 25 Urgent dewatering solutions during lockdown 27 Chemical pump that sets the global standard Water and wastewater solutions 28 Smarter pumping and dosing solutions from Grundfos

Transparency You Can See Average circulation Q2 2020: 6 294 Printed by: Tandym Print, Cape Town

Front cover: Festo Contact: Vhukhudo Ramufhufhi Tel: +27 8600 33786 vhukhudo.ramufhufhi@festo.com www.festo.co.za

Publisher of the Year 2018 (Trade Publications)

September-October 2020 • MechChem Africa ¦ 1