Ductile Iron Pressure Reducing Valve

A ductile iron pressure reducing valve (PRV) is a self-operating, pilot-controlled diaphragm regulating valve cast from high-tensile ductile iron (such as ASTM A536) to automatically reduce fluctuating high inlet pressures to a steady, preset downstream pressure. By utilizing an integrated pressure-sensing pilot loop that balances downstream line pressure against an adjustable spring force, the main valve's resilient diaphragm adjusts continuously to maintain safe downstream pressures regardless of changing flow rates. Water utility managers, commercial building plumbing contractors, and fire protection engineers can protect piping infrastructure from destructive over-pressure events by importing certified ductile iron pressure reducing valves directly from specialized manufacturers in China via our advanced B2B digital marketplace.