Water & Wastewater Treatment

WWT PUMP AND VALVE SUPPLEMENT 2018 11 requirements, the Sykes Pumps team visited the site to carry out a full site audit and assist with calculations so that a full specification could be drawn up. Explains Sykes Pumps hire manager, Rob Richards: "The customer wanted a robust solution that would allow them to increase capacity quickly if the situation escalated. Our response was to provide two duty pumps and a standby, along with two fuel cubes and all the hoses, flanges and accessories needed to connect the temporary pumps with the existing infrastructure, adapting the fittings where required to align the temporary pumps to existing connections." Tailored Installation Sykes pumped supplied a silenced UVO 150/100E pump as the main duty pump, which typically provides a maximum head of 93 metres and a flow of 120 litres per second. This was installed alongside two UVO 200/150F (D90) pumps, which each provide a maximum head of 135 metres and a flow of 375 litres per second. Mark Burden continues: "We were planning for a worst-case scenario situation but the combination of pumps and the design of the solution meant that we were able to use it in a best case scenario way, reducing the abstraction required from the river. Originally, one of the UVO 200/150F (D90) pumps was specified as a duty pump but we were able to keep this on standby and only use the smaller pump." While the duty pump was a 6" pump, Sykes Pumps adapted the set up to use 8" hoses so that everything on site was standardised. The pumps were connected using 200mm wire armoured bauer suction hoses to abstract the water and 200mm high pressure flanged discharge hoses to feed the abstracted supply to the network. Rob Richards explains: "Three suction hoses per pump were designed to pump the water out of the pumping station chamber supplied by the river and a 23m flanged high pressure hose connected the pumps to the nearest point on the raw water main to Ormesby WTW. "The existing pipework connections were 450mm so we also supplied a number of gate valves, non-return valves, adapters, reducers, bends and Y pieces to enable secure and leak-free connection to the 200mm hoses. We were able to use our experience of a similar project at another location, along with the initial site survey to design to the solution to fit the requirements on site." Ample Contingency The temporary pumping solution was installed by Integrated Water Services with the support and advice of the Sykes Pumps team who assisted with connecting the pumps up. While all three pumps remained on site into September when the heatwave had passed, only the UVO 150/100E 6" diesel pump was actually required to boost the water supply throughout the summer months. Mark Burden adds: "The water shortage was not as severe as we thought it might become but having plenty of contingency was the right choice. With Sykes Pumps' help we were able to bring an asset that had been out of use for four decades back into service and our experience this summer means we know that we can utilise this solution to provide additional capacity in the future."

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