Watts 740 Boiler Pressure Relief Valves

Series 740 Boiler Pressure Relief Valves are used in hot water space heating boiler applications to protect against excessive pressure on all types of hot water space heating boiler equipment. They consist of an iron body construction with expanded outlet drain connections for hot water space heating boilers, non-metallic disc-to-metal seating, stainless steel spring, and a 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.

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  • 3/4" x 1" Boiler Pressure Relief Valve (30 psi) View Specs

    $46.95 / each

    $272.10 / box
    6 x $45.35

    In Stock! (5 Available) Ships in 24-48 Hrs
  • 3/4" x 1" Boiler Pressure Relief Valve (40 psi) View Specs

    $107.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/4" x 1" Boiler Pressure Relief Valve (45 psi) View Specs

    $53.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 3/4" x 1" Boiler Pressure Relief Valve (50 psi) View Specs

    $53.95 / each

    $259.75 / box
    5 x $51.95

    In Stock! (7 Available) Ships in 24-48 Hrs
  • 3/4" x 1" Series 740 Boiler Pressure Relief Valve (75 psi) View Specs

    $53.95 / each

    In Stock! (3 Available) Ships in 24-48 Hrs
  • 1" x 1-1/4" Boiler Pressure Relief Valve (30 psi) View Specs

    $84.55 / each

    In Stock! (2 Available) Ships in 24-48 Hrs
  • 1" x 1-1/4" Boiler Pressure Relief Valve (40 psi) View Specs

    $112.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 1" x 1-1/4" Boiler Pressure Relief Valve (45 psi) View Specs

    $112.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1" x 1-1/4" Boiler Pressure Relief Valve (50 psi) View Specs

    $112.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 1" x 1-1/4" Boiler Pressure Relief Valve (75 psi) View Specs

    $112.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1" x 1-1/4" Boiler Pressure Relief Valve (60 psi) View Specs

    $112.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1-1/4" x 1-1/2" Boiler Pressure Relief Valve (30 psi) View Specs

    $132.55 / each

    $383.85 / box
    3 x $127.95

    In Stock! (4 Available) Ships in 24-48 Hrs
  • 1-1/4" x 1-1/2" Boiler Pressure Relief Valve (45 psi) View Specs

    $143.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1-1/4" x 1-1/2" Boiler Pressure Relief Valve (50 psi) View Specs

    $143.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1-1/4" x 1-1/2" Boiler Pressure Relief Valve (60 psi) View Specs

    $143.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1-1/2" x 2" Boiler Pressure Relief Valve (30 psi) View Specs

    $199.95 / each

    $578.85 / box
    3 x $192.95

    In Stock! (3 Available) Ships in 24-48 Hrs
  • 1-1/2" x 2" Boiler Pressure Relief Valve (45 psi) View Specs

    $206.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1-1/2" x 2" Boiler Pressure Relief Valve (50 psi) View Specs

    $206.95 / each

    In Stock! (2 Available) Ships in 24-48 Hrs
  • 1-1/2" x 2" Boiler Pressure Relief Valve (60 psi) View Specs

    $206.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1-1/2" x 2" Boiler Pressure Relief Valve (75 psi) View Specs

    $206.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out