What are the structures and functions of fire damper making machine
On the air duct of the air conditioning system, the purpose of the installation of fire dampers is to quickly cut off the air flow in case of fire, so as to prevent the fire from spreading. The fire valve diagram, when the fire duct, influence by ambient temperature and temperature, so that when the fire duct reaches a certain temperature, the fusible film fuse, the valve plate connected by the original fusible film and then fusible film closed stop airflow through off. In order to stop supplying air to the system and to install electrical signals and interlocks on the fire damper, the valve plate will signal when it is closed so that the fan will stop running.
Fire valve installation position:
(1) the main air duct on the air outlet of the air conditioning equipment (fresh air unit, unit, etc.).
(2) air passage through fire compartment.
(3) the air passage passes through the expansion and subsidence joint of the building structure.
(4) air passage, in unavoidable circumstances, through flammable workshops or rooms. The fire valve can be divided into self tipping, fire control valve type, manual reset, fusible film movement temperature is 70 DEG C.