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Enardo™ Series 450 Pressure Vacuum Relief Valve
Enardo Series 450 Pressure Vacuum Relief Valves are the ideal option for routine service in pipe-away applications.
The Series 450 provides protection against positive or vacuum overpressure, prevents air intake and evaporative losses of products, and helps contain odorous and potentially explosive vapors. For high-performance applications and severe service, see the Enardo Series 850 Pipe-Away Pressure Vacuum Relief Valve.
Enardo™ Series 450 Pressure Vacuum Relief Valve


2 through 12
Housing Materials
Weight Materials
Carbon Steel
Seat and Pallet Materials
Aluminum, 316 SS
Seal and Gasket Materials
FEP Teflon, Compressed Fiber
Special Coating, SS Weights, Gasket Material, Steam Jacket or Trace, Seat Material


  • Coated with Ameron Amershield Aliphatic Polyurethane
  • Standard 316 SS pallet
  • FEP Teflon Pallet Seals
  • High Flow Capacity
  • Fully Replaceable Pallet and Seat Assemblies
  • EN 13463-1, EN 13463-5 Certified


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