Articles & Case Studies

Engineered Valve Solution from Aquaflow

Posted: Monday 11th July 2011

A framework contractor working on behalf of United Utilities contacted T-Tís division Aquaflow to help them solve a problem of four persistently problematic valves which had become costly to maintain. The four DN800 tilting disc check valves, manufactured by a nominated framework valve holder, had been installed within a critical pump house which serves the regions water supply. Aquaflow worked closely with the site representatives and, a number of serious installation issues were identified including incorrect valve sizing and poor valve design which had lead to increased wear and a reduced lifespan.

Following a consultation and reappraisal of the hydraulic parameters Aquaflow supplied four engineered replacement DN600 slanted seat check valves. These chosen valves had slanted seats for improved performance characteristics and to reduce the negative effects associated with slamming, each valve is fitted with a fully maintainable stainless steel integral damper mechanism. The design of such allowed for the disassembly of the damper mechanism without the costly removal of the valve from the line.

Being the manufacturer Aquaflow,had full control over the design, therefore was able ensure that all materials were carefully selected and suitable for the application and a trouble-free operation, with a long efficient lifespan. The work ran very smoothly and to schedule and, the water company were left extremely satisfied.




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