Technical drawing
Pressure relief valve · AiFO
Pressure relief valve (75-5000 m3, ceiling mounting) ZD-2251
Item no. ZD-2251 · EAN 2010000051429
- valve for cold rooms with a volume from 75 to 5000 m³
- for operation at a pressure of about 100 Pa
- the valve can be mounted in the wall or in the ceiling and has a temperature alarm sensor
- without a heating element, ceiling mounting
In brief
- The ZD-2251 is the ceiling version of the valve without a heating element.
- Volume from 75 to 5000 m3, temperature alarm sensor included.
- One of four combinations in the ZD-2230, ZD-2231, ZD-2250 and ZD-2251 group.
Prices and stock levels are in the B2B shop. Sets of cold room fittings are put together to order.
Pressure relief valve (75-5000 m3, ceiling mounting) ZD-2251 – how to choose the right one
The ZD-2251 is a pressure relief valve without a heating element, mounted in the ceiling of a chamber with a volume from 75 to 5000 m3. The operating pressure is around 100 Pa, and a temperature alarm sensor is included.
This variant completes the grid of four options: two mounting planes times two temperature versions. When choosing, the chamber's operating regime is settled first, and only then the location of the passage.
In a positive-temperature cold store, the ceiling can be the cleanest solution, since the valve does not clash with shelving or wall-washing. Service access does need to be planned, though, before the interior fills up.
How to match the fittings to the panel thickness and the weight of the door – we explained it in the selection guide for this category.
Where it works
- Positive-temperature cold stores with fully used wall space
- Rooms washed down with a jet of water on the walls
- Installations designed together with the ceiling fit-out
- Facilities reporting alarms to a higher-level system
FAQ
Frequently asked questions
Have not found your answer? Give the panel thickness and the door dimensions – we will select a complete set of fittings.
Ask a questionDoes a valve without heating need different hole preparation?
The difference between the versions concerns the electrical equipment, not the channel passing through the partition itself.
Which ZD-22xx variant should be chosen for a freezer?
Among the valves for 75–5000 m³ rooms, the versions with a heating element – ZD-2230 and ZD-2231 – are intended for sub-zero temperatures. The choice between them comes down to the mounting surface.
Enquiry
We will quote Pressure relief valve (75-5000 m3, ceiling mounting) ZD-2251 for your appliance
Give the panel thickness, the door dimensions and the type of cold room – we will reply with a selection and a quote.
B2B shopGet in touch
We usually reply within 24 working hours.