The valve that blocks smoke and resists fire is called the smoke exhaust fire damper

The smoke exhaust fire damper is installed on the supply and return air pipes of the ventilation and air conditioning system. It is normally open. When the smoke temperature in the pipe reaches 70℃ during a fire, it closes, and within a certain period of time it can meet the requirements of smoke leakage and fire integrity, which is a valve that blocks smoke and resists fire.

Let you understand the installation requirements of the smoke exhaust fire damper; the fire damper can be interlocked with the ventilator and the smoke exhaust fan. The operation side of the valve should have a clear space of not less than 200mm for maintenance. Before installing the valve, it is necessary to check whether the operating mechanism of the valve is intact and whether the action is flexible and effective.

Smoke exhaust fire damper manufacturer

The smoke exhaust fire damper should be installed in the duct section close to the wall or floor slab. The fire dampers on both sides of the fire compartment partition wall should not be greater than 200mm from the wall surface, and the pipes and their insulation materials within 2.0m on both sides of the fire damper should be made of non-combustible materials. The fire damper should be provided with independent supports and hangers to avoid pipeline deformation affecting its performance during a fire. The fusible link of the fire damper should be installed on the side facing the greater fire risk.

The above is a brief introduction brought to you by the smoke exhaust fire damper manufacturer. Partners in need can log in to our official website for detailed consultation.