一,Fire damper,Fire member, generally installed in the pipe mechanical exhaust system, usually was turned off, turned on smoke in case of fire, smoke exhaust pipe when the internal temperature reaches 280 degrees off, and to meet the leakage amount of smoke within a certain time and fire integrity requirements, since the role of smoke fire retardant. Main material: carbon steel, galvanized steel, stainless steel.
Damper Usage
(1) in an open state, when the fire within the flue gas exhaust pipe temperature reaches 280 degrees off, and to meet the leakage amount of smoke and fire integrity requirements within a certain period of time, from the effects of smoke fire retardant
(2) to the valve closed by DC24V power; (electric type smoke damper)
(3) manually shut down or manual reset;
(4) closed DC24V electric reset; (automatic type smoke damper for local inconvenience manually operated)
(5) the valve closing signal output can be interlocked with other fire-fighting equipment.
Advantages damper
1, low air leakage, airtight performance;
2, open the electric current consumption is small;
3, strong corrosion resistance and long service life; (made of stainless steel type)
4, flexible actuator drive, feedback, interlock signal accurately.
Type damper
1. normally open type smoke damper
2. normally closed smoke damper
3. Remote control type smoke damper (rope-controlled)
4. Automatic reset type smoke damper