Fire Damper is an indispensable component in a building fire protection system. According to its functional characteristics and application scenarios, fire damper is mainly divided into two categories: 70℃ fire damper and 280℃ smoke damper. The following is a detailed description of their types and functions:

70℃ Fire Damper

Usage: Mainly installed in the air conditioning ventilation system pipeline.

State: Normally open state, that is, under normal circumstances remain open to allow air circulation.

Operating conditions: When the ambient temperature (usually the smoke temperature) reaches 70 ° C, the Fire Damper automatically closes, and the related fan is closed through an interlock mechanism to prevent the fire from spreading through the ventilation system.

Application scenario: Suitable for ventilation but to prevent the spread of fire occasions, such as office buildings, shopping malls and other public buildings ventilation system.

280 ° C smoke exhaust Fire Damper

Usage: Mainly installed in the smoke exhaust system pipeline, used for fire smoke control.

Status:

Normally closed type: When the smoke exhaust system is not started, it is kept closed, and the control center sends an electrical signal to open and start the smoke exhaust in case of fire. When the flue gas temperature reaches 280 ° C, the Fire Damper automatically closes, and the exhaust fan is closed through the interlock mechanism to prevent high temperature damage to the fan and other equipment.

Normally open: This Fire Damper remains open under normal conditions to allow smoke exhaust. When the flue gas temperature reaches 280 ° C, it will also automatically shut down to stop the exhaust smoke and protect the system.

Application scenario: Applicable to situations where smoke needs to be drained, such as high-rise buildings and underground garages.

70 ° C Fire Damper and 280 ° C smoke exhaust Fire Damper play an important role in fire prevention and control, through different working mechanisms and state Settings, together constitute an important line of defense in the building fire system.