3-A PVE Pressure Relief Valves

Robust and Durable

  • Due to the valve’s unique structure, the O-ring remains protected from wear and exposure to abrasive media
  • AISI 316L stainless-steel body and parts, made from bar for maximum durability and cleanability
  • Designed to withstand up to 1M operations

Smart Installation and Operation

  • 360˚ adjustable
  • Simple adjustment between Normally open / Normally closed with no need for actuator change
  • Suitable for Shut off, Divert and Vessel outlet configurations


  • One-part stem for optimal sterility and aseptic applications
  • Process contact components are electro-polished for corrosion resistance & reduced risk of bacterial growth
  • Full drainage without dead leg

Optimal CIP Cleaning

  • Ball shape and surfaces – no dead spaces
  • O-ring seat in the valve ensures minimal exposure to the flow

Cost Effective Maintenance

  • Both top and bottom parts of the valve are identical
  • Unique Patent Pending sealing system utilizing standard O-ring sealing


The primary purpose of a pressure- or vacuum-relief valve is to protect life and property by venting process fluid from an over-pressurized vessel, or adding fluid or gas (such as air) to prevent the formation of a vacuum strong enough to collapse a storage tank.

Operates as a pressure-release valve with the option to completely open the valve using a pneumatic actuator

Overflow valves are used mainly for automatic CIP operation or bypass

Pressure Relief Valve Properties:

  • Operating pressure 2- 7 bar
  • Pressure to open pneumatically – Min 5 – Max 8 bar

Construction materials:

  • Actuator: AISI 304L
  • Valve Body: AISI 316L & EPDM / Silicone / Viton gaskets