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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 41-60 of 379 items

Set Descending Direction
Product SKU DESCRIPTION MANUFACTURER
3012-450 3012-450 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 450 PSI, Discharge Capacity: 14.7 Superior HVACR
3012C-550 3012C-550 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 550 PSI, Discharge Capacity: 17.9 Superior HVACR
3012C-600 3012C-600 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 600 PSI, Discharge Capacity: 19.5 Superior HVACR
3012C-650 3012C-650 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 650 PSI, Discharge Capacity: 21.1 Superior HVACR
3012C-700 3012C-700 Straight-Thru Pressure Relief Valve, 1/4 NPT X 3/8 SAE, 700 PSI, Discharge Capacity: 22.7 Superior HVACR
3014-235 3014-235 Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 235 PSI, Discharge Capacity: 7.9 Superior HVACR
3014-300 3014-300 Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 300 PSI, Discharge Capacity:10 Superior HVACR
3014-350 3014-350 Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 350 PSI, Discharge Capacity: 11.6 Superior HVACR
3014-400 3014-400 Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 400 PSI, Discharge Capacity: 13.2 Superior HVACR
3014-425 3014-425 Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 425 PSI, Discharge Capacity: 14 Superior HVACR
3014-450 3014-450 Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 450 PSI, Discharge Capacity: 14.7 Superior HVACR
3014C-600 3014C-600 Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 600 PSI, Discharge Capacity: 19.5 Superior HVACR
3014C-650 3014C-650 Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 650 PSI, Discharge Capacity: 21.1 Superior HVACR
3015-300 3015-300 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 300 PSI, Discharge Capacity:10 Superior HVACR
3015-350 3015-350 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 350 PSI, Discharge Capacity: 11.6 Superior HVACR
3015-400 3015-400 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 400 PSI, Discharge Capacity: 13.2 Superior HVACR
3015-425 3015-425 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 425 PSI, Discharge Capacity: 14 Superior HVACR
3015-450 3015-450 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 450 PSI, Discharge Capacity: 14.7 Superior HVACR
3015C-550 3015C-550 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 550 PSI, Discharge Capacity: 17.9 Superior HVACR
3015C-600 3015C-600 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 600 PSI, Discharge Capacity: 19.5 Superior HVACR
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