Case Study

Liqui-Mover Pressure Reducing Valve (PRV) Station

Liqui-Mover Pressure Reducing Valve (PRV) Station

Pages 1 Pages

08/10 Challenge Short service life of a pressure-powered pump float assembly, early failure of inlet and outlet check valves, and water hammer (the banging heard in pumped condensate return lines). Solution Install a pressure reducing valve (PRV) station to control the motive steam or compressed air pressure to approximately 20 psig higher than the backpressure for smoother operation of the pressure powered pump. A pre-assembled PRV station from Kadant Johnson includes a pressure reducing valve, drip trap, (2) pressure gauges, wye strainer with blow down valve, isolation valves, and a stainless steel reverse flow preventer. Results Regulating the motive pressure with a PRV station reduces the wear on the float assembly. The inlet and outlet check valves

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