What are the classifications of fire dampers?

According to its function, the fire damper can be divided into: smoke exhaust valve, smoke exhaust fire damper, fire control valve, smoke and fire control valve and other structures.

Exhaust valve

The smoke exhaust valve is installed on the pipe of the smoke exhaust system of high-rise buildings and underground buildings. Its basic functions are: the temperature (smoke) electric signal linkage, the smoke exhaust fan starts at the same time; the valve is opened manually, the smoke exhaust fan starts at the same time; the output Valve opening signal.

Smoke fire damper

The smoke exhaust fire damper is installed on the smoke exhaust system pipe required for smoke exhaust and fire prevention (set on the pipe at the suction port of the exhaust fan). When the temperature is ℃, the fuse will be blown, the valve will be closed, and the smoke exhauster will stop at the same time.

Fire control valve

The fire control valve is installed on the ventilation and air conditioning system pipes with fire protection requirements (to prevent the fire from spreading along the air duct). Its functions are: the temperature fuse is blown at 70°C to close the valve; the valve is output to close the signal, and the ventilation and air conditioning system fan Shutdown; stepless air volume adjustment.

Smoke and fire control valve

The smoke and fire control valve is installed on the ventilation and air conditioning system pipes with smoke and fire prevention requirements (to prevent the spread of smoke and fire). Its functions are: the smoke (temperature) electrical signal linkage makes the valve close, the fan of the ventilation and air conditioning system stops; manually makes the valve When it is closed, the fan stops; the temperature fuse is blown at 70°C to close the valve; the valve close signal is output; the air volume is adjusted in steps according to 90° five equal divisions.