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Pressure Relief Valves

Pressure Relief Valves

Our Pressure Relief Valves are designed to protect industrial piping systems and vessels from over pressure. These valves begin to open as there is an increase from the set pressure. The safety relief valves open completely on achieving the set pressure mark and continue to open further, thus allowing more flow. When the pressure level falls below the set pressure, the valve closes again.

Three functional elements of a HVAC pressure relief valve:

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

When selecting a pressure relief valve, special care must be taken as it must be capable of passing enough flow to relieve the system from over pressure. We, at Evergreen Midwest Co., recommend customers browse through our stock of Atmospheric Pressure Relief Valve, Straight Through Pressure Relief Valve, Female Connection Pressure Relief Valve to select the one that serves your specific purpose.

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Items 1 to 25 of 118 total

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SKU DESCRIPTION MANUFACTURER
3000-235 Atmospheric Pressure Relief Valve, 1/8 NPT, 235 PSI, Discharge Capacity: 8.1 SUPERIOR HVACR
3000-300 Atmospheric Pressure Relief Valve, 1/8 NPT, 300 PSI, Discharge Capacity: 10.2 SUPERIOR HVACR
3000-350 Atmospheric Pressure Relief Valve, 1/8 NPT, 350 PSI, Discharge Capacity: 11.8 SUPERIOR HVACR
3000-400 Atmospheric Pressure Relief Valve, 1/8 NPT, 400 PSI, Discharge Capacity: 13.5 SUPERIOR HVACR
3000-425 Atmospheric Pressure Relief Valve, 1/8 NPT, 425 PSI, Discharge Capacity: 14.3 SUPERIOR HVACR
3000-450 Atmospheric Pressure Relief Valve, 1/8 NPT, 450 PSI, Discharge Capacity: 15.1 SUPERIOR HVACR
3000-500 Atmospheric Pressure Relief Valve, 1/8 NPT, 500 PSI, Discharge Capacity: 16.7 SUPERIOR HVACR
3000C-600 Atmospheric Pressure Relief Valve, 1/8 NPT, 600 PSI, Discharge Capacity: 19.9 SUPERIOR HVACR
3000C-650 Atmospheric Pressure Relief Valve, 1/8 NPT, 650 PSI, Discharge Capacity: 21.6 SUPERIOR HVACR
3000C-700 Atmospheric Pressure Relief Valve, 1/8 NPT, 700 PSI, Discharge Capacity: 23.2 SUPERIOR HVACR
3000C-750 Atmospheric Pressure Relief Valve, 1/8 NPT, 750 PSI, Discharge Capacity: 24.9 SUPERIOR HVACR
3000C-800 Atmospheric Pressure Relief Valve, 1/8 NPT, 800 PSI, Discharge Capacity: 26.5 SUPERIOR HVACR
3001-235 Atmospheric Pressure Relief Valve, 1/4 NPT, 235 PSI, Discharge Capacity: 8.1 SUPERIOR HVACR
3001-300 Atmospheric Pressure Relief Valve, 1/4 NPT, 300 PSI, Discharge Capacity: 10.2 SUPERIOR HVACR
3001-350 Atmospheric Pressure Relief Valve, 1/4 NPT, 350 PSI, Discharge Capacity: 11.8 SUPERIOR HVACR
3001-400 Atmospheric Pressure Relief Valve, 1/4 NPT, 400 PSI, Discharge Capacity: 13.5 SUPERIOR HVACR
3001-425 Atmospheric Pressure Relief Valve, 1/4 NPT, 425 PSI, Discharge Capacity: 14.3 SUPERIOR HVACR
3001-450 Atmospheric Pressure Relief Valve, 1/4 NPT, 450 PSI, Discharge Capacity: 15.1 SUPERIOR HVACR
3001-500 Atmospheric Pressure Relief Valve, 1/4 NPT, 500 PSI, Discharge Capacity: 16.7 SUPERIOR HVACR
3001C-550 Atmospheric Pressure Relief Valve, 1/4 NPT, 550 PSI, Discharge Capacity: 18.3 SUPERIOR HVACR
3001C-600 Atmospheric Pressure Relief Valve, 1/4 NPT, 600 PSI, Discharge Capacity: 19.9 SUPERIOR HVACR
3001C-650 Atmospheric Pressure Relief Valve, 1/4 NPT, 650 PSI, Discharge Capacity: 21.6 SUPERIOR HVACR
3001C-700 Atmospheric Pressure Relief Valve, 1/4 NPT, 700 PSI, Discharge Capacity: 23.2 SUPERIOR HVACR
3001C-750 Atmospheric Pressure Relief Valve, 1/4 NPT, 750 PSI, Discharge Capacity: 24.9 SUPERIOR HVACR
3001C-800 Atmospheric Pressure Relief Valve, 1/4 NPT, 800 PSI, Discharge Capacity: 26.5 SUPERIOR HVACR

Grid  List 

Items 1 to 25 of 118 total

Page:
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5