Flow control air damper PWIIS-N

manualelectricrectangular

Rectangular multi-blade dampers with backward or concurrent blades used for airflow control or closing. Controlled manually or by an electric actuator. They can be installed in air handling units or in a wall. The design of the damper ensures leakage class 2 or 4 in accordance with EN-1751. Special sealing inserts installed at the blade ends ensure high integrity. The respective blades are driven by the system of levers and tie rods in a backward arrangement. Design The housings and the blades of the PWIIS-N dampers are made of stainless sheet metal. Special inserts with a sleeve seal are installed at the ends of the blades. The blades are fitted over the entire length with EPDM gaskets. On two sides of the blade, inside the inserts, there are embedded steel axles connected with the blade by means of a steel rivet. The blades are provided with plain bearings made of fibreglass reinforced PP. Manufacturing Versions Drive: T1 – Damper with an actuator T2 – Damper with a manual mechanism T3 – Damper with an extended axle (for the actuator installation)