Pressure Relief Valves

Choose from a wide selection of steam relief valves to protect your steam heating system from excessive steam pressure. Here you will find Conbraco relief valves, Kunkle pressure relief valves and Watts relief valves. All the boiler pressure relief valves you need are found at State Supply! Steam relief valves are mandated by local codes to protect your steam vessel from excessive pressure. If your burner firing the vessel fails to shutdown, an explosion could occur if the steam relief valve did not “pop open” at the steam relief valve setting stamped on the valve’s identification plate. Choose from a wide selection of hot water relief valves for hydronic heating systems. Here you will find Conbraco relief valves, Kunkle pressure relief valves and Watts temperature pressure relief valves. All the hot water boiler pressure relief valves and water heater pressure relief valves you need are found at State Supply! Hot water relief valves are mandated by local codes to protect your hot water vessel from excessive pressure. If your burner firing the vessel fails to shutdown, an explosion could occur if the steam relief valve did not “pop open” at the steam relief valve setting stamped on the valve’s identification plate.

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  1. Bell & Gossett Bronze Relief Valve, 1170-100, 1" IPF, 100 psi Water

    Bell & Gossett Bronze Relief Valve, 1170-100, 1" IPF, 100 psi Water

    SKU: BI1044

    1170-100 bronze hot water relief valve. Angle pattern with 1"inlet x 1" outlet set at 100 PSI and 3,060,000 BTU capacity. Learn More
    $144.00
  2. Bell & Gossett Bronze Relief Valve, 1170-125, 1" IPF, 125 psi Water

    Bell & Gossett Bronze Relief Valve, 1170-125, 1" IPF, 125 psi Water

    SKU: BI1044A

    1170-125 bronze hot water relief valve. Angle pattern with 1"inlet x 1" outlet set at 125 PSI and 3,735,000 BTU capacity. Learn More
    $144.00
  3. Bell & Gossett Bronze Relief Valve, 1170-30, 1" IPF, 30 psi Water

    Bell & Gossett Bronze Relief Valve, 1170-30, 1" IPF, 30 psi Water

    SKU: BI1040

    1170-30 bronze hot water relief valve. Angle pattern with 1"inlet x 1" outlet set at 30 PSI and 1,170,000 BTU capacity. Learn More
    $144.00
  4. Bell & Gossett Bronze Relief Valve, 1170-36, 1" IPF, 36 psi Water

    Bell & Gossett Bronze Relief Valve, 1170-36, 1" IPF, 36 psi Water

    SKU: BI1041

    1170-36 bronze hot water relief valve. Angle pattern with 1"inlet x 1" outlet set at 36 PSI and 1,330,000 BTU capacity. Learn More
    $144.00
  5. Bell & Gossett Bronze Relief Valve, 1170-45, 1" IPF, 45 psi Water

    Bell & Gossett Bronze Relief Valve, 1170-45, 1" IPF, 45 psi Water

    SKU: BI1042

    1170-45 bronze hot water relief valve. Angle pattern with 1"inlet x 1" outlet set at 45 PSI and 1,575,000 BTU capacity. Learn More
    $144.00
  6. Bell & Gossett Bronze Relief Valve, 1170-50, 1" IPF, 50 psi Water

    Bell & Gossett Bronze Relief Valve, 1170-50, 1" IPF, 50 psi Water

    SKU: BI1042A

    1170-50 bronze hot water relief valve. Angle pattern with 1"inlet x 1" outlet set at 50 PSI and 1,710,000 BTU capacity. Learn More
    $144.00
  7. Bell & Gossett Bronze Relief Valve, 1170-75, 1" IPF, 75 psi Water

    Bell & Gossett Bronze Relief Valve, 1170-75, 1" IPF, 75 psi Water

    SKU: BI1043

    1170-75 bronze hot water relief valve. Angle pattern with 1"inlet x 1" outlet set at 75 PSI and 2,385,000 BTU capacity. Learn More
    $144.00
  8. Bell & Gossett Bronze Relief Valve, 790-100, 3/4" IPF, 100 psi Water

    Bell & Gossett Bronze Relief Valve, 790-100, 3/4" IPF, 100 psi Water

    SKU: BI1037B

    790-100 bronze hot water relief valve. Angle pattern with 3/4"inlet x 3/4" outlet set at 100 PSI and 2,075,000 BTU capacity. Learn More
    $92.80
  9. Bell & Gossett Bronze Relief Valve, 790-125, 3/4" IPF, 125 psi Water

    Bell & Gossett Bronze Relief Valve, 790-125, 3/4" IPF, 125 psi Water

    SKU: BI1037C

    790-50 bronze hot water relief valve. Angle pattern with 3/4"inlet x 3/4" outlet set at 50 PSI and 1,160,000 BTU capacity. Learn More
    $92.80
  10. Bell & Gossett Bronze Relief Valve, 790-30, 3/4" IPF, 30 psi Water

    Bell & Gossett Bronze Relief Valve, 790-30, 3/4" IPF, 30 psi Water

    SKU: BI1033

    790-30 bronze hot water relief valve. Angle pattern with 3/4"inlet x 3/4" outlet set at 30 PSI and 790,000 BTU capacity. Learn More
    $92.80
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