Purpose: Used in the smoke exhaust system of the building's aisle, smoke-proof front room, and windowless room, installed on the wall and top plate, and used as a smoke exhaust port.

           In the event of a fire, open the air outlet manually through the DC24V power supply or remotely to exhaust smoke or supply air.

Material: galvanized steel sheet/ordinary steel sheet

(1) Normally closed, input DC24V power supply to make the valve open quickly;

(2) Manually open or reset;

(3) After the valve is opened, the valve can be closed through the DC24V power supply;

(4) Output valve opening signal.