Watts F121479
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Watts F121479

LF174A Bronze Water Pressure Relief Valve, 3/4 in, FNPT, 125 psi, Lead-Free

  • Manufacturers: Watts
  • Brand Name: Watts
  • PN: F121479
  • MPN: F121479
  • UPC: 098268585704
  • Min. Order Qty: 1
  • Qty. Interval: 1
  • Availability: loading
  • 89 4.4 Branch Availability
Capacity      :      2070000 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      :      125 psi
Series      :      LF174A
Temperature Rating      :      250 deg F

This 3/4 in lead-free 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 is designed for emergency safety relief, not as an operating control. It consists of a lead-free 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. The pressure setting is 125 psi, with corresponding ratings of 2070000 Btu/hr.

  • Lead-free
  • Automatic reseating
  • Soft seated
  • Spring loaded
  • 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

Applications: For hot water boiler applications