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Watts 2 In Bronze Boiler Pressure Relief Valve, 145 psi, Threaded Female Connections

SKU: 0278495

$2,660.00

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Product Details

Watts 0278495

This 2'' boiler pressure relief valve is used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a bronze body construction with NPT threaded female inlet and NPT threaded female outlet (drain) connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. It resists corrosive water conditions, sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief, not as an operating control. The pressure relief is set at 145 psi (551.6 kPa) with corresponding high pressure ratings up to 13,390,000 BTU/hr.


  • UPC 098268506969
  • Online Product ID 9690202
  • Material Bronze
  • Inlet Connection Size 2''
  • Inlet Connection Type Female Threaded
  • Inlet Thread Type NPT
  • Maximum Temperature Deg F 250
  • Maximum Working Pressure Psi 109
  • Outlet Connection Size 2''
  • Outlet Connection Thread Type NPT
  • Outlet Connection Type Female Threaded
  • Pressure Range 30 to 150
  • Pressure Relief Setting Psi 145
  • Pressure Steam Discharge Capacity 13390000 Btu/hr
  • Protection Type Pressure
  • Series 174A

Additional information

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

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