The self-closing multi-blade non-return aluminium dampers are
designed for air pressure control in the ventilation system.
The blade design and mounting allow automatic air flow exhaust under
the incoming pressure. This prevents overpressurizing the ductwork.
The housing and the blades are made of aluminium sections.
The air damper is provided a housing made of 4 angles of the same type
as those used in the fabrication of the DSQW-A air dampers.
EPDM gaskets are installed in the top and bottom housing walls.
The DSQOW-A air damper features moving aluminium blades, each 80 mm high.
The blade height is the same for all product sizes. The blade bearings are
fitted inside the upright sections.
The versions with vertical partitions are available for A ≥ 1400 mm and
according to these conditions:
