AC 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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ImageProduct TitleBrandSkuPrice
Angled Pressure Relief Valves, 3/8 NPT x 3/8 SAE, 235 PSI, Discharge Capacity 8.1
$141.25
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Angled Pressure Relief Valves, 3/8 NPT x 3/8 SAE, 300 PSI, Discharge Capacity 10.2
$147.61
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Angled Pressure Relief Valves, 3/8 NPT x 3/8 SAE, 350 PSI, Discharge Capacity 11.8
$147.61
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Angled Pressure Relief Valves, 3/8 NPT x 3/8 SAE, 425 PSI, Discharge Capacity 14.3
$147.61
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Angled Pressure Relief Valves, 3/8 NPT x 3/8 SAE, 450 PSI, Discharge Capacity 15.1
$147.61
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Angled Pressure Relief Valves, 3/8 NPT x 3/8 SAE, 550 PSI, Discharge Capacity 18.3
$356.06
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Angled Pressure Relief Valves, 3/8 NPT x 3/8 SAE, 600 PSI, Discharge Capacity 19.9
$356.06
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Angled Pressure Relief Valves, 3/8 NPT x 1/2 SAE, 300 PSI, Discharge Capacity 10.2
$153.94
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Angled Pressure Relief Valves, 3/8 NPT x 1/2 SAE, 350 PSI, Discharge Capacity 11.8
$153.94
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Angled Pressure Relief Valves, 3/8 NPT x 1/2 SAE, 400 PSI, Discharge Capacity 13.5
$153.94
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