PRV is a Mechanisms to ensure the integrity of protected rooms. Discharging inert gaseous agents stored at high pressure creates a pressure increase in the enclosure which they are released.In certain cases, these enclosures do not manage to offset this pressure increase and keep it under certain values to ensure its structural integrity. So this calls for an overpressure relief system, consisting of dampers designed based on specific variables.

These include the working pressure, the design concentration and amount of agent to discharge, existing leakage area, the allowable overpressure and the discharge time. The operation of these devices is simple. Under normal conditions they keep the space airtight, but following the discharge, the excess pressure causes the louvers of the damper to move. The louvers return to their initial position once the excess of gaseous substances has been vented, ensuring that the extinguishing agent remains inside the room for as long as necessary.

The Vents are offered in a number of standard sizes for installation in both internal and external walls. Providing market leading performance across a range of pressures. The vents are designed to start opening at 80Pa and fully open at 100Pa, this allows annual integrity room tests to be performed without the need to block the vents during such a test

Vertical & Horizontal Installation
4 hour fire resistance to BS EN 1363-1 & BS EN 1363-2
Powder coated RAL 9010 as standard
10 Year Warranty as Standard