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Cla-Val Model 92-01/692-01 Combination Pressure Reducing and Pressure Sustaining Valve
Click here to download the example model used in the video below.
The above video is simulating a pump shut down.
Stage 1: As the upstream hydraulic grade decreases to 20ft (PSV's minimum hydraulic grade setting), the PRV gradually opens to maintain a downstream hydraulic grade of 10 ft (PRV's maximum hydraulic grade setting). Stage 2: As the downstream hydraulic grade gradually decreases, the PSV gradually closes to maintain an upstream hydraulic grade of 20ft (PSV's minimum hydraulic grade setting).
How does the Pressure Sustaining Valve (PSV) work?How does the Pressure Reducing Valve (PRV) work?Cla-Val Model 92-01/692-01 Combination Pressure Reducing and Pressure Sustaining Valve