Watts F274598
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Watts F274598

174A Bronze Water Pressure Relief Valve, 3/4 in, FNPT, 75 psi

  • Manufacturers: Watts
  • Brand Name: Watts
  • PN: F274598
  • MPN: F274598
  • UPC: 098268013146
  • Min. Order Qty: 1
  • Qty. Interval: 1
  • Availability: loading
  • 89 4.4 Branch Availability
Capacity      :      1320000 Btu/hr
Connection Size      :      3/4 in
Connection Type      :      FNPT
Dimension      :      2-3/4 in L x 4-1/2 in H
Item Name      :      Water Pressure Relief Valve
Material      :      Bronze
Operator Type      :      Lever Handle
Pressure Rating      :      75 psi
Series      :      174A
Temperature Rating      :      250 deg F

This 3/4 in 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 75 psi with corresponding high pressure ratings up to 1320000 Btu/hr.

  • Automatic reseating
  • Spring loaded
  • Non-mechanical seat to disc alignment will not stick or freeze
  • Seat located above drain, water can't be trapped and sediment can't foul seat
  • Water seal of high temperature resisting material isolates spring working parts from water during relief

Standards/Certifications: ASME section IV, HV, NB, ISO 9001 standard

Applications: For hot water boiler applications