3 June 2015, 12:00AM
Pump efficiency deteriorates over time, leading to energy wastage. Efficiency losses of between 5 and 15% can occur after 10 years of operation. When pumps are maintained to restore efficiency close to its original point, significant energy savings can be achieved. Typically, a pump overhaul includes; replacement of wear rings, seals, bearing and if worn, the impeller; cleaning the internals; blast cleaning of externals; and apply new epoxy coating.