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Watts Valves Relief Valve
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Watts 1/2 In Bronze Self Closing Temperature and Pressure Relief Valve, 100 psi, 210 degree F, 4 In Extension Thermostat

SKU: 0004431

$78.50

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Product Details

Watts 0004431

This 1/2'' temperature and pressure relief valve, series 1XL, is used in water heater and hot water storage tank applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 15,000 BTU/hr. It features a bronze body with NPT threaded male inlet and NPT threaded female outlet connections, extension thermostat with special thermo-bonded coating and test lever. Temperature relief is at 210 deg F (99 degC). Pressure relief range is 75 to 150 psi (5.2 to 10.3 bar).The pressure relief is set at 100 psi. (7.0 bar).


  • UPC 098268000382
  • Online Product ID 9687050
  • Material Bronze
  • Buy American Act Compliant yes
  • Inlet Connection Size 0.5''
  • Inlet Connection Type Male Threaded
  • Inlet Thread Type NPT
  • Outlet Connection Size 0.5''
  • Outlet Connection Thread Type NPT
  • Outlet Connection Type Female Threaded
  • Pressure Range 75 to 150
  • Pressure Relief Setting Psi 100
  • Protection Type Temperature and Pressure
  • Series 1XL
  • Shank Length 0.88''
  • Temperature Relief Deg F 210
  • Temperature Steam Discharge Capacity 15000 Btu/hr
  • Thermostat Probe Length 4''

Additional information

  • Unique thermostat with special thermo-bonded coating
  • Solid bronze body construction
  • Automatic reseating
  • ASME rated and CSA listed

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