Leading CNC Machining & Fabrication.

Nordon Pty Ltd

CNC Machining Specialists


29 Furness Ave. Edwardstown, 5039, South Australia.

Opening hours

Mon – Fri: 9AM – 5PM

Pressure Relief Vents/Ports

The Nordon Pressure Relief Port is designed to relieve the pressure differences in Walk-in Refrigerated Rooms and Freezers caused by:

    • temperature changes
    • doors opening and closing

What does the Pressure Relief valve do?

Pressure changes in the Walk-in Refrigerated Rooms cause the freezer wall panels to flex, resulting in a breakdown of the seals in the panel junctions, thus permitting frozen condensation to form in the wall. This damages to the freezer wall and may also compromise any stored products. The ice also dramatically reduces the freezer room efficiency.

Key Benefits of Nordon Pressure Relief  Ports/Vents

  • They are manufactured from non-corrosive, food-safe injection moulded plastic.
  • No mechanical parts to break down.
  • A vermin filter is standard.
  • An electrical junction box.
  • 8 watt or 16 watt Anti Freeze Heater.

Variable freezer wall thickness pressure relief port.
The Nordon Pressure Relief Vent adapts to a wall thickness from 65mm to 150mm thick and is secured without the use of screws or rivets. Extension sleeves are available for thicker walls.

Larger freezer and refrigeration rooms may require multiple Ports to be fitted.

Safety Aspect: In a properly constructed freezer room, failure to install a pressure relief port/vent could delay the door from opening, thereby trapping workers inside.

Nordon Pressure Relief Ports / Vents are shipped around the world.

Contact us to discuss other benefits and how to purchase the Nordon Pressure Relief Vent/Port.

Product Info

Nordon Pressure Relief Valve for refrigerated room pressure equalisation.

Product: Pressure Relief Vents/Ports

Available for purchase as individual units, boxes of 10, 20 and bulk orders

Heater: 8 watt heater and a 16 watt heater in 240 Volt and 110 Volt

Installation: Instructions included. Requires a licenced electrician.  

Orders: Contact us to order Nordon Pressure Relief Ports

Spare Parts: 

Butterfly Valve   Part No.PRP00150
Electrical Box Lid Part No.PRP00130



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