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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, it 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:
    • 1) Threaded PVC 1/2" - 2" PP 1/2" - 1"
    • 2) Flanged PVC 1/2" - 2"
  • Seals: PP 1/2" - 2" EPDM, FKM
  • Max.Line Pres:
    • 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