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
Straight-Thru Pressure Relief Valve, 1/4 NPT x 3/8 SAE, 550 PSI, 17.9 Discharge Capacity
$192.84
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Straight-Thru Pressure Relief Valve, 1/4 NPT x 3/8 SAE, 600 PSI, 19.5 Discharge Capacity
$192.84
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Straight-Thru Pressure Relief Valve, 1/4 NPT x 3/8 SAE, 650 PSI, 21.1 Discharge Capacity
$198.41
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Straight-Thru Pressure Relief Valve, 1/4 NPT x 3/8 SAE, 700 PSI, 22.7 Discharge Capacity
$198.41
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Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 235 PSI, 7.9 Discharge Capacity
$130.77
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Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 300 PSI, 10 Discharge Capacity
$130.77
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Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 350 PSI, 11.6 Discharge Capacity
$130.77
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Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 400 PSI, 13.2 Discharge Capacity
$130.77
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Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 425 PSI, 14 Discharge Capacity
$130.77
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Straight-Thru Pressure Relief Valve, 3/8 NPT X 3/8 SAE, 450 PSI, 14.7 Discharge Capacity
$130.77
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