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Pressure Relief Valves

Our pressure relief valves are designed to protect industrial piping systems and vessels from over-pressurization. These valves open when there\'s an increase from the set pressure, and close when the level drops before the set pressure.

Three functional elements of a HVAC pressure relief valve:

  • Valve element – typically a spring-loaded poppet valve
  • Sensing element – a piston or a diaphragm
  • Reference force element – usually a spring

 

When selecting a pressure relief valve, special care should be taken. We at Evergreen recommend customers browse through our stock of atmospheric pressure relief valves, straight through pressure relief valves, & female connection pressure relief valves to select the type that best serves your specific purpose.

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Pressure Relief Valves - PRV - Evergreen Midwest Co.

Showing 21-40 of 379 items

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Product SKU DESCRIPTION MANUFACTURER
PRV 3001C-700 Atmospheric Pressure Relief Valve, 1/4 NPT, 700 PSI, Discharge Capacity: 23.2 Superior HVACR
PRV 3001C-750 Atmospheric Pressure Relief Valve, 1/4 NPT, 750 PSI, Discharge Capacity: 24.9 Superior HVACR
Pressure Relief Valve 3001C-800 Atmospheric Pressure Relief Valve, 1/4 NPT, 800 PSI, Discharge Capacity: 26.5 Superior HVACR
PRV 3002-235 Atmospheric Pressure Relief Valve, 3/8 NPT, 235 PSI, Discharge Capacity: 8.1 Superior HVACR
PRV 3002-300 Atmospheric Pressure Relief Valve, 3/8 NPT, 300 PSI, Discharge Capacity: 10.2 Superior HVACR
Pressure Relief Valve 3002-350 Atmospheric Pressure Relief Valve, 3/8 NPT, 350 PSI, Discharge Capacity: 11.8 Superior HVACR
PRV 3002-400 Atmospheric Pressure Relief Valve, 3/8 NPT, 400 PSI, Discharge Capacity: 13.5 Superior HVACR
PRV 3002-425 Atmospheric Pressure Relief Valve, 3/8 NPT, 425 PSI, Discharge Capacity: 14.3 Superior HVACR
PRV 3002-450 Atmospheric Pressure Relief Valve, 3/8 NPT, 450 PSI, Discharge Capacity: 15.1 Superior HVACR
PRV 3002-500 Atmospheric Pressure Relief Valve, 3/8 NPT, 500 PSI, Discharge Capacity: 16.7 Superior HVACR
PRV 3002C-550 Atmospheric Pressure Relief Valve, 3/8 NPT, 550 PSI, Discharge Capacity: 18.3 Superior HVACR
PRV 3002C-600 Atmospheric Pressure Relief Valve, 3/8 NPT, 600 PSI, Discharge Capacity: 19.9 Superior HVACR
PRV 3002C-650 Atmospheric Pressure Relief Valve, 3/8 NPT, 650 PSI, Discharge Capacity: 21.6 Superior HVACR
PRV 3002C-700 Atmospheric Pressure Relief Valve, 3/8 NPT, 700 PSI, Discharge Capacity: 23.2 Superior HVACR
1 3012-150 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 150 PSI, Discharge Capacity: 8.1 Superior HVACR
3012-235 3012-235 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 235 PSI, Discharge Capacity: 7.9 Superior HVACR
3012-300 3012-300 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 300 PSI, Discharge Capacity:10 Superior HVACR
3012-350 3012-350 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 350 PSI, Discharge Capacity: 11.6 Superior HVACR
3012-400 3012-400 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 400 PSI, Discharge Capacity: 13.2 Superior HVACR
3012-425 3012-425 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 425 PSI, Discharge Capacity: 14 Superior HVACR
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