Leaf-type pressure-relief damper for controlled relief of the pressure considered excessive for the area served by this damper.

It is made only of rectangular cross-section.

Range of connection and overall dimensions of these dampers is limited to the standard dimensions, which are presented in the table below. Other damper sizes can be manufactured upon request. The damper can be manufactured either with two connecting fl anges (channel-type) or single-fl ange (wall-type) for embedding into the wall, with the possibility of installing a louvered grille or mesh.

Design: