SКс сonnectors with back-draught shutter
For preventing back draft when the ventilation system is not active.
Wings of the back-draught shutter inside the connector open under the pressure created by the airflow. Then they automatically close with the spring work.
Connector is made of galvanized steel. Back-draught shutter wings are made of sheet aluminium.
Equipped with a special foam rubber sealant reducing the noise level and making the junction points airtight and leakproof.
For connection with round air ducts.
Mounting with hose clamps.
When mounting the device, mind the vertical position of the axis.
