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Watts Valves Relief Valve
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Watts 3/4 IN Brass Self Closing Temperature and Pressure Relief Valve, 125 psi, 210 degree F, Test Lever, 4 IN Ext Thermostat

SKU: 0066090

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Product Details

Watts 0066090

This 3/4'' temperature and pressure relief valve is designed to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 105,000 BTU/hr. This two-in-one relief valve provides a proven and cost effective means to protect against excessive temperature and pressure emergency conditions. It features a forged body with NPT male inlet and NPT female outlet connections, a unique thermostat with special thermo-bonded coating, and test lever. This valve is ASME rated and CSA listed. The temperature relief is 210 deg F (99 deg C). The pressure relief is set at 125 psi (8.6 bar).


  • UPC 098268000023
  • Online Product ID 3631949
  • Weight 0.57 lbs.
  • Material Brass
  • Buy American Act Compliant yes
  • Includes Test Lever
  • Inlet Connection Size 0.75''
  • Inlet Connection Type Male Threaded
  • Inlet Thread Type NPT
  • Maximum Temperature Deg F 210
  • Maximum Working Pressure Psi 125
  • Outlet Connection Size 0.75''
  • Outlet Connection Thread Type NPT
  • Outlet Connection Type Female Threaded
  • Pressure Range 75 to 150
  • Pressure Relief Setting Psi 125
  • Pressure Steam Discharge Capacity 105000 Btu/hr
  • Protection Type Temperature and Pressure
  • Series 100XL
  • Shank Length 1.19''
  • Temperature Relief Deg F 210
  • Temperature Steam Discharge Capacity 105000 Btu/hr
  • Thermostat Material Copper
  • Thermostat Probe Length 4''

Additional information

  • thermostat is accurate and proven
  • Unique thermostat with special thermo-bonded coating
  • Provides fully automatic temperature and pressure relief protection for hot water storage tanks and heaters up to 105,000 BTU/HR. Series
  • Temperature and pressure relief valve to protect the heater from excessive pressure and temperature

About This Brand

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