Back Draft Damper

• DKA non-return dampers are designed to provide one-way movement of air in rectangular ducts.

• The blades moving parallel to each other on the damper section are aerodynamic designed for low resistance and power level.

• There is neoprene sealing gasket between the blades.

Product blades should be parallel to the ground.

• It opens at 30 Pa.

• For the high pressure resistant DKC model, its blades are made of galvanized sheet instead of aluminum.