RDR adjustable flow regulators are made from class M1 plastic suitable for use at temperatures up to 60°C.
The flow regulator RDR is an element placed inside the duct in order to obtain a constant flow within a pressure range from 150 to 600 Pascals. It
RDR LP (RDR BP) adjustable flow regulators fit inside ducts to obtain a constant flow rate within pressure range of 20 to 100 Pa. They may be used