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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, 85 psi, 210 degree F, Test Lever, 8 In Extension Thermostat

SKU: 0558121

$882.00

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Product Details

Watts 0558121

This 3/4'' lead free automatic reseating temperature and pressure relief valve with an 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 85 psi.


  • UPC 098268821123
  • Online Product ID 9691658
  • Material Brass
  • 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
  • Outlet Connection Size 0.75''
  • Outlet Connection Thread Type FPT
  • Outlet Connection Type Female Threaded
  • Pressure Range 75 to 150
  • Pressure Relief Setting Psi 85
  • Protection Type Temperature and Pressure
  • Series LF40L
  • Temperature Relief Deg F 210
  • Temperature Steam Discharge Capacity 205000 Btu/hr
  • Thermostat Probe Length 8''

Additional information

  • 8'' thermostat length
  • CSA listed and ASME rated
  • Unique thermostat with special thermo-bonded coating
  • Lead free copper alloy body construction

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