Blog: Pressure Reducing Valves

Where does the water come from?  How do you know what pressure you need in a building? Are you over 80PSI?  Are mountain states the only ones who have big fluxuations in municipal water supply pressures?  What is a "noisy little guy?" In this episode, the guys are throwing paper airplanes and talking about pressure reducing...

What tech support questions does Caleffi get over and over again? You might be surprised! What to do with air trapped in a plumbing system? Can I install a thermostatic mixing valve upside down? Why is this pressure reducing valve over-pressurizing the system? Listen to Greg and Dan explain these and more. Thanks for tuning in!...

Pressure reducing valves, like most components in your system, are subject to water quality and repetitive use. They should be inspected and cleaned at least once every 12 months. Replacement cartridges are availabe if needed to avoid replacing the entire valve, but usually simple maintenance will keep the valve operating trouble-...

Fall-off pressure is the reduction of pressure at the outlet of a pressure reducing valve (PRV), when downstream fixtures are open to allow flow through the PRV.  If, for example, a PRV is set at 70 psi, that is the static pressure setting and represents the PRV downstream pressure in a no-flow condition. As soon as fixtures...