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Pressure Relief Type A

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Description

The thermoplastic pressure relief valve protects equipment and systems against overpressures or sudden pressure surges. Able to handle highly corrosive or ultrapure liquids, the relief valve prevents pumps from dead-heading due to unexpected shut-offs downstream (also known as a bypass relief valve). It maintains back pressure in closed-loop systems to make pumps run more smoothly (also known as a back pressure valve).

Features and Benefits

  • Most extensive size range in the industry
  • U-cup seals protect spring chamber while maintaining sensitive operation
  • Designed for fewer flow restrictions and excellent flow capacity
  • Repaired in-line, easy maintenance
  • Stainless steel adjustment feature provides convenient relief pressure setting in the field
    (factory set at no additional charge)

Materials

  • Sizes: 1/2" - 2"
  • Materials: PVC and PP
  • Models:
    • Threaded PVC 1/2" - 2"
    • Threaded PP 1/2" - 1"
    • Flanged PVC 1/2" - 2"
  • Seals: PP 1/2" - 2" EPDM, FKM
  • Max Line Pressure:
    • PVC 110 psi
    • PP 85 psi
  • Setting Range:
    • PVC 5 - 100 psi
    • PP 5 - 75 psi

 

Available Actuators

  • Series 79 Pneumatic
  • Series 92 & 94 Electric
  • Series 83 Electromni

 

Typical Applications

  • Chemical Processing
  • Water & Wastewater
  • Landfills
  • Irrigation
  • Food Processing
  • Mining