Flap valve

Application: Self-hanging fire damper is usually installed in the ventilation, air conditioning system pipes, can also be installed in the firewall and the platform. 

Usually usually open, 70 ℃ valve closed. 

FHF-1 and FHY-1 according to the design of Jian T356 structure, and made the necessary improvements. 

FHF-2 multi-leaf fire damper To improve the design, L size can be greatly reduced, but no inspection door, if necessary, can be ordered separately, pipeline inspection doors installed in the pipe near the fire damper. 

L = wall thickness +100 or L = B / n +50 

Performance: (1) When the duct temperature exceeds 70 ℃, the fusible link blows and the blade automatically closes under the action of gravity. (2) According to user requirements, can be installed with the relevant equipment and telecommunications interlock. 

Ceiling Fire Valve FHX-FD 

Application: Ceiling fire damper is mainly used for bathroom ventilation pipes and other ceiling return duct openings, usually showed a normally open state for ventilation exhaust, the fire occurred, when the temperature to 70 ℃, the valve fusible link is blown, the valve is closed, cut off the fire spread along the pipeline access. 

Performance: (1) The valve is normally open state, can be used for ventilation at the end of the pipe or ceiling pipe ventilation. (2) When the air temperature reaches 70 ℃, the valve is closed. Flameproof valve FFH-1 (FD) FFH-6 (FVD) Application: Fireproof is usually installed in the air duct of the ventilation and air conditioning system, normally open at 70 ℃, the valve is closed. Performance: (1) When the temperature reaches 70 ℃, the fuse action valve is closed. (2) Manual open, manual reset. (3) the valve closed to send all the way signal. Fire control valve FHT-2 (FVD) FHT-7 (FVD) Application: Fire control valve is usually installed in the air-conditioning air duct, usually normally open, the valve is closed at 70 ℃, the valve blades in the 0 ° -90 ° range Adjust within five gears. Performance: (1) the fuse action valve is closed when the temperature is 70 ℃. (2) manual off, manual reset. (3) manually change the blade opening angle. (4) open and close after the issue of a telecommunications signal. Automatic smoke and fire damper