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Watts 1 In Iron Boiler Pressure Relief Valve, 35 psi, Expanded Outlets

SKU: 0382571

$623.50

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Product Details

Watts 0382571

This 1'' boiler pressure relief valve is used in hot water space heating boiler applications to protect against excessive pressure on all types of hot water space heating boiler equipment. It consists of a iron body construction with expanded outlet drain connections for hot water space heating boilers, non-metallic disc-to-metal seating, stainless steel spring, and test lever. This valve offers large discharge capacity, resists corrosive water conditions, resists sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief and shall not be used as an operating control. Pressure is set at 35 psi (2.41 bar) with corresponding BTU/hr ratings of 1,450,000.


  • UPC 098268019094
  • Online Product ID 9690432
  • Material Iron
  • Includes Expanded Outlets
  • Inlet Connection Size 1''
  • Inlet Connection Type Female Threaded
  • Inlet Thread Type NPT
  • Maximum Temperature Deg F 250
  • Maximum Working Pressure Psi 25
  • Outlet Connection Size 1.25''
  • Outlet Connection Thread Type NPT
  • Outlet Connection Type Female Threaded
  • Pressure Range 30 to 75
  • Pressure Relief Setting Psi 35
  • Pressure Steam Discharge Capacity 1450000 Btu/hr
  • Protection Type Pressure
  • Series 740

Additional information

  • Soft seated
  • Automatic reseating
  • Iron body
  • Spring loaded

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