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African Petrochemicals- Mar/April Edition 15_2

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The residue pump where

The residue pump where KSB proved it is a myth that slurry pumps have short lifespans. Slurry pumps push the boundaries of reliability du Preez Calitz, projects engineer of QKR Namibia . KSB Pumps and Valves has busted the ‘slurry pumps have short lifespans’ myth with the ongoing success of its Navachab Gold Mine installation in Namibia, where 10 of its LSA slurry pumps have operated for nearly a year without incident. 6 AK Roux is the projects and asset management manager for QKR Namibia. This is in stark contrast to the previous pump sets at the mine, which operated a mere 4-6 weeks between breakdowns in the aggressive wear environment of the mine. Resultant stoppages and production losses had resulted in the mine’s management seeking alternative solutions from new suppliers. KSB Pumps and Valves’ Andreas Gremels says the company was able to convince the mine of LSA technical superiority, and now has backed up the recommendation with actual on-the-job proof. “Our pumps have proven that they can work reliably and efficiently where others simply cannot.” Technical solution He continues that the hard metal design and additional high-pressure gland water system is less prone to component wear. The KSB LSA pumps make use of a unique high-pressure gland water system and gland service package that pressurizes the stuffingbox with non-slurry laden water to prevent particle ingress that can cause wear of components. Hard metal linings and specially designed impellers further contribute to the hard-wearing nature of the pumps. “This just goes to show that specifying the right pump for a technical application is critical to the success of pumping operations. In the case of the Navachab Gold Mine, the additional performance gains and reliability were complimented by the outstanding work done by owners, QKR Namibia’s technical teams. They designed and managed the installation of the entire project including monitoring systems etc and worked closely with our technical team to ensure optimal performance and longevity of the pumps and the entire installation,” says Andreas. QKR Namibia Projects Engineer, du Preez Calitz, confirms the success of the project. “The pumps were selected based on the long term wear simulations done by KSB and full life cycle cost analysis during the tender evaluation process. We have not looked back since then! In fact, an open inspection of the pumps recently revealed a much lower wear rate than initially expected which has

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Collection

December 2016 Edition 13.6
Sept / Oct 2016 Edition 13.5
July / August 2016 Edition 13.4
May / June 2016 Edition 13.3
March / April 2016 Edition13.2
Jan / Feb 2016 Edition 13.1
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