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Attention should be paid to the installation and selection of fire dampers with different fusing temperatures

Release Time：2021-07-21

Different fuse temperature fire damper installation principle characteristics.
Under normal circumstances, the fire valve is presented open state installed in the vent exhaust pipe, the general fire valve in the fire when the gas temperature in the pipe reaches 70 ℃ closed, smoke fire valve in the fire when the gas temperature in the pipe reaches 280 ℃ closed.
When a fire occurs, the flame invades the air duct, and the high temperature causes the fusible alloy on the valve to melt, or the memory alloy to deform to cause the valve to automatically close. The fire damper is used for the occasions where the air duct and the fire compartment penetrate. When the smoke sense exceeds 70 degrees, the valve can be set to output the electric signal. When the smoke sense exceeds 70 degrees, the valve will be closed, and the chain blower will be closed, it is generally used in the common air duct system for air supply at ordinary times and air supplement in fire. Rooms that do not need air supplement can be controlled and closed in case of fire. The 280-degree fuse is closed only with different fuse temperatures. Fire dampers are generally applied to the place where the fire exhaust pipe passes through the firewall. When the flue gas temperature exceeds 280 degrees, the smoke exhaust fan can be automatically fused and closed in an interlocking manner.
Smoke fire damper is called smoke damper according to its operating temperature, and some are called fire dampers according to its nature of use. However, for the equipment side, only the fused metal of ordinary fire damper is replaced with the one that is fused at 280 degrees. If you install the necessary smoke damper on the pipeline, you can use ordinary single-layer louver tuyere.

Fire damper selection should pay attention to matters.
1: Fire Damper Because fire dampers are more suitable for our common ventilation and air conditioning systems, we exclude the fire dampers that need to be used in the kitchen fume exhaust system. We had better not exceed 150 ℃ for the ambient temperature. Generally speaking, the temperature for using fire dampers is about 70 ℃.
2: Because fire dampers are more suitable for ventilation and air conditioning and other piping systems, they are basically similar to our common exhaust valves in terms of basic functions.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong, the hometown of FRP in China. The company has Grade II qualification for fire protection facilities engineering, Grade II qualification for construction mechanical and electrical installation engineering, Grade II qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, and an axial fan invention patent, A fan utility model patent, environmental assessment, safety assessment, three simultaneous and other procedures are complete.