This product is a replacement for: 35285 - X-RDA-150-210/240/270/300m³/hC ×

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The air flow regulator RDR is an element placed inside the duct in order to obtain a constant flow within a pressure range from 50 to 250 Pascal. It is used in ventilation or air conditioning systems for supply or return air. Made in plastic material class M1 and in galvanized steel for sleeves in ¤ 125 to 250 mm.

Ordering code
(Exampel) RDR-80/15-50 m3/h
80 - size of the duct in mm
15 - 50 is possible air volumes in m3/h

The air is forced to pass through predetermined space in which a flap can change the position according to the specified air flow. The requested airflow is fixed by a screwdriver, torx no10.

RDR is made from plastic material (polystyrene) classified M1. Operating temperature is from 5 to 60°C.


RDR is simply fitted into vertical or horizontal ducts. On the horizontal duct, respect the mention «DOWN» indicated at the front of the product. A leap seal ensures the air tightness. The flow regulator must remain accessible to permit its maintenance. When the flow regulator is associated with a diffuser, the minimum distance between the diffuser and the regulator is at least one Ø in extraction mode and 3 Ø in blowing mode.

When installing, do not touch the piece of regulation.



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