Pressure Reducing Valves (PRVs) are mechanical devices used to regulate and reduce fluid pressure in a system to a desired level. They're commonly used in plumbing, industrial applications, gas systems, and hydraulic networks.
PRVs operate by using Spring-loaded diaphragms or pistons to maintain downstream pressure. When downstream pressure exceeds the set point, the valve closes to restrict flow. When pressure drops, the valve opens to increase flow.
Types of PRVs
Direct-Acting PRVs
Simple design
Suitable for small systems or low flow rates
Less precise
Pilot-Operated PRVs
More accurate and stable under varying flow conditions
Used in larger or industrial systems
Handles higher flows and pressures
Common Applications
Water systems: Prevents overpressure damage in residential and commercial plumbing.
Steam systems: Protects boilers and piping from excessive pressure.
Air and gas systems: Ensures safe and efficient distribution.
Hydraulic systems: Regulates pressure to prevent component damage.