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Watts Valves Relief Valve
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Watts 3/4 In Lead Free Automatic Reseating Temp And Pressure Relief Valve, 150 psi, 210 degree F, Test Lever, 8 In Extension Thermostat

SKU: 0121421

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Product Details

Watts 0121421

This 3/4'' lead free automatic reseating temperature and pressure relief valve with a 8'' thermostat is installed directly in tank tappings and is used in commercial applications to provide automatic temperature and pressure protection for hot water supply tanks and hot water heaters. It features lead free brass construction with NPT male inlet and NPT female outlet connections, thermo-bonded coated thermostat, tamper resistant bonnet screws, automatic reseating feature, and test lever. The temperature relief is 210 deg F (99 deg C) and the pressure relief is 150 psi.


  • UPC 098268584516
  • Online Product ID 9688728
  • Material Bronze
  • Buy American Act Compliant yes
  • Includes Test Lever
  • Inlet Connection Size 0.75''
  • Inlet Connection Type Male Threaded
  • Inlet Thread Type NPT
  • Lead Free yes
  • Maximum Temperature Deg F 210
  • Maximum Working Pressure Psi 113
  • Outlet Connection Size 0.75''
  • Outlet Connection Thread Type NPT
  • Outlet Connection Type Female Threaded
  • Pressure Range 75 to 150
  • Pressure Relief Setting Psi 150
  • Pressure Steam Discharge Capacity 1437600 Btu/hr
  • Protection Type Temperature and Pressure
  • Series LF40L
  • Temperature Relief Deg F 210
  • Temperature Steam Discharge Capacity 205000 Btu/hr
  • Thermostat Material Copper
  • Thermostat Probe Length 8''

Additional information

  • Unique thermostat with special thermo-bonded coating
  • Non-mechanical seat to disc alignment
  • Lead free brass body construction
  • Tamper resistant bonnet screws

About This Brand

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