E-PSA: Overpressure damper made of raw aluminium with movable fins for air passage with an L-shaped frame. Maximum effective speed 6 m/sec.

E-PSA-I: Overpressure damper made of aluminium with movable fins for air passage with an L-shaped frame. This damper allows air to pass from the duct to the outside (extraction damper), and prevents it in the opposite direction.

E-PSA-E: Overpressure damper made of aluminium with movable fins for air passage with an L-shaped frame. This damper allows air to pass from the outside to the duct (suction damper), and prevents it in the opposite direction.

- It is possible to manufacture the damper with galvanised sheet metal slats or metal mesh. Consult for more information.

Finish: Non-anodised aluminium.

Applications: These dampers are used in ventilation ducts. Specially to prevent that cold winter air from outside could get into through the exhaust damper when exhaust fan is stopped.