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Valve OZK-1m(90) in multi-blade version
Fire damper of ventilation systems of buildings and structures OZK-1m(90) in multi-blade version (hereinafter referred to as the valve) by its functional purpose can be used as a fire retardant with normally open flap (NO), and smoke with normally closed flap (NC), according to the requirements of SNiP 41-01-2003 and SP 7.13130.2009. Type of climatic design and placement category U3 according to GOST 15150-69. Limit values of operating temperature of ambient air from -30°С to +40°С under condition of absence of direct impact of atmospheric precipitations.
The valve is produced of rectangular (square) cross-section. It is installed in openings or places of passage of ventilation systems through fire barriers. The valve is operable in any spatial orientation. The valve should not be installed in ventilation ducts of rooms of A and B categories of explosion-fire hazard, local suctions of explosion-fire hazardous mixtures. The valve is made of galvanised steel. It is possible to produce a protective housing protecting the actuator during installation and operation of the valve.
The valve is produced of rectangular (square) cross-section. It is installed in openings or places of passage of ventilation systems through fire barriers. The valve is operable in any spatial orientation. The valve should not be installed in ventilation ducts of rooms of A and B categories of explosion-fire hazard, local suctions of explosion-fire hazardous mixtures. The valve is made of galvanised steel. It is possible to produce a protective housing protecting the actuator during installation and operation of the valve.
