purpose

Composed of aluminum alloy single-layer adjustable louvers and fire dampers, it is installed at the outlet and suction port of the air conditioning system's supply and return air duct that meets smoke and fire prevention requirements. It is generally installed on the side or end of the air duct and on the wall, and is usually used as a vent to adjust the direction of the supply air flow.

function

·Can be used as a vent to adjust the direction of the air supply flow;

·Normally used, when the airflow temperature reaches 70 ℃, the valve is closed under the drive of shape memory alloy or the action of temperature fuse.