Rectangular fire damper and pressure control damper BSK6-VAP

Bevent Rasch has developed a fire damper in fire resistance class EI60 / EI60S which is also used for pressure control damper in all types of ventilation plants whilst providing full protection against the spread of smoke.

Quick facts

  • Fire resistance class EI60/EI60S
  • Sizes from 200 x 200 mm to 800 x 800 mm
  • Prefitted safety actuator 24V
  • Pressure Control Variable Air Volume
  • Low weight
  • Easy installation
  • Available in MagiCAD
  • CE-marked building product according to 15650:2010


Dampers in combination with walls or joists for fire-sectioning of heating, ventilation and air conditioning installations in buildings. In accordance with the harmonised European Standard EN 15650:2010. Smoke spread is prevented when the damper system design in accordance with the associated documentation, assembly and fitting instructions is used in combination with smoke detectors and the MRB (or equivalent) monitoring system. No further measures against the spread of smoke are required. As the damper also functions as a constant pressure damper, both these functions are combined in the same damper. This saves both time, space and money for installations in, for example, hotels, office and shopping malls, where both these functions need to be solved.


BSK6-VAP is supplied complete with a factory mounted, maintenance-free, 24 V electric safety actuator with thermal sensor featuring built-in signal contacts to indicate the damper position. BSK6-VAP is supplied prepared for possible overinsulation of 50 mm. BSK6-VAP is supplied calibrated from the factory. Nominal pressure is 100 Pa or 300 Pa depending on the pressure sensor’s range of measurement. Desired reference values are set using the regulator’s potentiometer between 30-100% of nominal pressure. The reference value can be remotely set with a 2-10V signal from the DUC, for example. The device can be force-controlled to different operational requirements. In case of of a power failure, the damper closes with actuator spring return.




Damper module


Central Unit


Room detector


Duct detector


Junction box


Sleeve coupling