LUNOR ventilation systems provide protection against nuclear, biological and chemical NBC contamination. The ventilation system of the VA - 40/75/150 series shelters protects people and equipment in emergency situations.It was originally designed and developed to protect against the effects of weapons, such as air blasts, shock waves, seismic shocks, shrapnel, etc. and to clean the external air contaminated with chemical, biological or radioactive substances. The ventilation system supplies the shelter with clean air and provides an overpressure of 50- 250 Pa. The kit consists of a fan (VA, air handling unit) that sucks the outside air through an explosion-proof valve with a prefilter (ESV-VF). In case of contaminated air, connect the NBC filter of the corrugated hose between the fan and the air flow meter. The required amount of air is adjusted on the flow meter, and the valves regulate safe supply and exhaust of air from the shelter.
Explosion Proof and Overpressure, Explosion Proof Valves are used to seal air inlets and outlets in NBC shelters, command centers, headquarters, etc. Explosion Proof Valves are often used in other exposed facilities where increased protection is required (e.g. power plants, command centers, etc.) Explosion-proof valves with pre-filter. Explosion-protected valves protect air supply and exhaust openings in shelters against sudden gusts of air with a pressure of up to 1 bar. Explosion-proof valves with pre-filters (ESV-VF) of appropriate size (depending on the amount of air used) must be used at the air inlet. The valves protect people and equipment from pressure surges and resulting suction caused by nuclear and conventional explosions