Replacement rapid response pumps enhance efficiency and reliability

The current fleet of rapid response pumps held by a UK water company was nearing the end of its life cycle and needed replacing. The pumps perform a critical function out in the field, as they are used by engineers attending burst mains or outage events to maintain the supply of clean drinking water to affected customers.
In updating the fleet, the client had a number of specific design criteria which needed to be met. The replacement pumps needed to be of stainless-steel construction and have a WRAS-approved mechanical seal, that is safe for contact with potable water.
One of the ageing pumps was sent to the customers’ local HAYLEY DEXIS branch for inspection and used as a basis for designing the replacement units. This pump was then sent to the mechanical engineering services division, HAYLEY 247 DEXIS, for reverse engineering.
The pumps were designed and manufactured in-house by the HAYLEY 247 DEXIS team. Base plates were designed using in-house CAD software to satisfy measurements and strength, weight, and cooling requirements. The fabrication, machining, assembly and final testing processes were also completed at the HAYLEY 247 DEXIS workshop in Dudley.
Comprehensive testing was completed, which determined component integrity, flow rate, and outlet pressure were up to standard. The client was then supplied with the requested quantity, complete with WRAS-approved seals and drive engines from the proven Vanguard range. This range is available off-the-shelf and, therefore, will allow any replacement to be sourced quickly.
The units have been proven by the customer to give improved efficiency and perform better with flow and pressure than their previous assets. This has resulted in the engines being able to operate at a reduced load, improving reliability and extending the lifespan of the pumps.