The DKR type relief dampers are designed for relieving excess pressure and keeping the pressure constant in the relevant space.
These dampers are used in rectangular ducts. The blades have neoprene gaskets on the edges for better leakage prevention. The blades have parallel motions, being connected with a steel link. Iron weights on the link prevents early openings . The damper body is self-flanged and compatible with 30-35 mm standard duct flanges. Opening pressure is 50 Pa as default but can specially be made for higher pressures on request.