WATTS® 0274836

WATTS® 174A 3/4 150

174A 3/4 150

WATTS® 0274836 174A, 174A-150 Pressure Relief Valve, 3/4 in, FNPT, 30 to 150 psi, Bronze Body

  • Brand Name: WATTS®
  • MPN: 0274836
  • ASPN: 174A 3/4 150
  • UPC: 098268013283

Series 174A Boiler Pressure Relief Valves are 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. Series 174A 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 and shall not be used as an operating control.

WATTS® Pressure Relief Valve, Series: 174A, 3/4 in Nominal, FNPT, 30 to 150 psi, 250 deg F, Media: Water, Bronze Body, 2-3/4 in L x 4-1/2 in H

  • pdf
    Data/Spec Sheet
  • Seat located above drain water can't be trapped and sediment can't foul seat
  • Non-mechanical seat-to-disc alignment will not stick or freeze
  • Water seal of high temperature resisting material isolates spring working parts from water during relief
  • In 5 psi (34.5 kPa) increments from 30 to 150 psi (2 to 10 bar) with corresponding high ratings from 650000 to 14370000 Btu/hr pressure

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