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Product details

  • Non-mechanical seat-to-disc alignment will not stick or freeze
  • 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
  • Series 740 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
  • 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
  • Documentation

    Technical Specs

    SKU: 59237
    Model: 745-050
    nominal size: 1-1/2 x 2" pressure rating: 50 psi
    material: Iron prop65 warning: California Proposition 65 Warning, This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
    series: 740 Series country of origin: US
    temperature rating: 250° F product type: Pressure Relief Valves
    type: High Capacity btu rating: 925000 - 10700000 BTUH
    product upc code: 098268019476

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