Engineered Valve Solution from Aquaflow

A framework contractor working on behalf of United Utilities contacted T-T’s 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. The chosen valves had slanted seats for improved performance characteristics. 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.

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.

Aquaflow supply a wide range of waterworks valves with many ranges having third-party WRAS approval for potable water networks. As part of T-T, Aquaflow are also able to offer complete actuated valve packages including bespoke electric control panels and monitoring systems.

Aquaflow Ltd
Tel: 01630 647111

Published in Valve User Magazine Issue 20

Summer 2020 // Issue 53
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