Skip to Main Content

530C-STD 1/2

Part of the 530C Series

Ordering Code: 0371271

UPC: 098268018233

Lead Free Model Available

1/2 In Brass Poppet Type Calibrated Pressure Relief Valve, Adjustable 50-175 psi

This 1/2 inch calibrated pressure relief valve is used in commercial, residential and industrial applications to protect against excessive pressure in systems containing water, oil, or air. It consists of a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring, brass bonnet, Buna-N disc, and Buna-N O-ring. Series 530C has a calibrated adjustment feature for setting the valve to the required relief pressure, and is ideal for bypass thermal expansion pressure relief (not ASME approved). It is for use in fire protection systems. The maximum pressure is 300 psi (20.67 bar). The adjustable pressure range is 50 to 175 psi (3.45 to 12.06 bar).

Product Features

  • Designed for protection against excessive pressure build up
  • Bronze body construction
  • Calibrated pressure relief valve
  • Adjustable pressure relief range 50 to 175 psi
Body Material Brass
Brand Name Watts
GDS Status Registered
GPM-When Relieved Does Not Apply to Product
Inlet Connection Size 1/2 IN
Inlet Connection Type Male Threaded
Inlet Thread Type NPT
Lead Free NO
Maximum Temperature-Fahrenheit 180
Maximum Working Pressure-PSI 300
Model Number 530C-STD 1/2
Outlet Connection Size 1/2 IN
Outlet Connection Type Female Threaded
Outlet Thread Type NPT
Part Number 0371271
Pressure Range 50 to 175 PSI
Pressure Relief Setting-PSI 150
Pressure Steam Discharge Capacity Does Not Apply to Product
Protection Type Pressure
Series 530C
Shank Length Does Not Apply to Product
Temperature Steam Discharge Capacity Does Not Apply to Product
Thermostat Material Does Not Apply To Product
Thermostat Probe Length Does Not Apply to Product