Overpressure Valve

Overpressure Valve

In stock

Possible delivery method: Standard delivery

It is normally closed and will not open unless the air pressure inside the shelter is slightly greater than the outside air pressure. It opens when the Safe Cell is turned on and gives a little back pressure to the Safe Cell to help it create and maintain the positive pressure.

In other words, it gives the Safe Cell something to push against, helping it maintain overpressure and it won’t let any contaminated air back up through the outflow pipe into your shelter.

Browse this category: Underground Bunkers