Caleffi 535361HA Pressure Reducing Valve W/Gauge 1" FNPT

The Caleffi 535361HA Pressure Reducing Valve W/Gauge is a water pressure control component used to maintain a stable downstream pressure in piping systems. It is installed in HVAC systems at the main supply line, where it automatically reduces and regulates incoming pressure to a preset safe level for downstream plumbing and connected equipment. The 1" FNPT connection allows secure threaded integration into standard piping networks for consistent flow control. Its integrated gauge allows direct monitoring of outlet pressure, supporting accurate adjustment and system performance control in residential and commercial.