Pressure vents are used in gas extinguishing systems in order to safeguard the structural integrity of the enclosures.
It is well known that all extinguishing gases create a positive pressurization of the protected enclosure during discharge and some of them (HFC227ea, FK-5-1-12 ) create also a negative pressurization.​
Sicurex pressure vents are counter weighted flap vent type.
Vents can be used in single flow condition.
​All vents are fire rated 4 hour according to EN1364 and can be provided with weather louvres for external side installation.