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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 61-80 of 379 items

Set Descending Direction
Product SKU DESCRIPTION MANUFACTURER
3015C-650 3015C-650 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 650 PSI, Discharge Capacity: 21.1 Superior HVACR
3015C-700 3015C-700 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 700 PSI, Discharge Capacity: 22.7 Superior HVACR
3016-235 3016-235 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 235 PSI, Discharge Capacity: 15.2 Superior HVACR
3016-300 3016-300 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 300 PSI, Discharge Capacity: 19.1 Superior HVACR
3016-350 3016-350 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 350 PSI, Discharge Capacity: 22.2 Superior HVACR
3016-400 3016-400 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 400 PSI, Discharge Capacity: 25.2 Superior HVACR
3016-425 3016-425 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 425 PSI, Discharge Capacity: 26.8 Superior HVACR
3016-450 3016-450 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 450 PSI, Discharge Capacity: 28.3 Superior HVACR
3016C-600 3016C-600 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 600 PSI, Discharge Capacity: 37.4 Superior HVACR
3016C-650 3016C-650 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 650 PSI, Discharge Capacity: 40.5 Superior HVACR
3016C-700 3016C-700 Straight-Thru Pressure Relief Valve, 3/8 NPT X 1/2 SAE, 700 PSI, Discharge Capacity: 43.5 Superior HVACR
3020-235 3020-235 Straight-Thru Pressure Relief Valve, 1/2 NPT X 5/8 SAE, 235 PSI, Discharge Capacity: 15.2 Superior HVACR
3020-300 3020-300 Straight-Thru Pressure Relief Valve, 1/2 NPT X 5/8 SAE, 300 PSI, Discharge Capacity: 19.1 Superior HVACR
3020-350 3020-350 Straight-Thru Pressure Relief Valve, 1/2 NPT X 5/8 SAE, 350 PSI, Discharge Capacity: 22.2 Superior HVACR
3020-400 3020-400 Straight-Thru Pressure Relief Valve, 1/2 NPT X 5/8 SAE, 400 PSI, Discharge Capacity: 25.2 Superior HVACR
3020-425 3020-425 Straight-Thru Pressure Relief Valve, 1/2 NPT X 5/8 SAE, 425 PSI, Discharge Capacity: 26.8 Superior HVACR
3020-450 3020-450 Straight-Thru Pressure Relief Valve, 1/2 NPT X 5/8 SAE, 450 PSI, Discharge Capacity: 28.3 Superior HVACR
3012 3020-500 Straight-Thru Pressure Relief Valve, 1/2 NPT X 5/8 SAE, 500 PSI, Discharge Capacity: 31.3 Superior HVACR
3020C-550 3020C-550 Straight-Thru Pressure Relief Valve, 1/2 NPT X 5/8 SAE, 550 PSI, Discharge Capacity: 34.4 Superior HVACR
3020C-600 3020C-600 Straight-Thru Pressure Relief Valve, 1/2 NPT X 5/8 SAE, 600 PSI, Discharge Capacity: 37.4 Superior HVACR
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