Supply fan with integrated pressure relief damper (mechanically regulated) Type DV-RK1

  • 5,000 m³/h to 40,000 m³/h
  • 0.75 kW to 11 kW
  • fault switch with auxiliary contact
  • Response time < 3 seconds
  • operating pressure - infinitely adjustable
  • vibration damper
  • RAL 9006 or optional RAL colour of your choice

The housing is made from aluminium profiles, screw fixed cover plates, which are removeable, powder coated to RAL 9006 or optional choice of RAL.

The axial fan is polyester powder coated to RAL 7030 colour. It has an integral flow stabiliser and guide vanes to increase pressure and achieve a generally swirl-free outflow. There is an axial impeller (blades adjustable when stopped) mounted directly on to the drive motor.

Optional accessories

  • Multileaf damper - mounted on the suction or discharge side, including a spring return actuator (Type SFL, normally open (OPEN))
  • Flexible connector - mounted on the suction and/or discharge side
  • Protective grille - mounted on the suction and/or discharge side
  • Circular transition piece for duct connection, mounted on the suction and/or discharge side


  • Product Information Supply air pressurisation system for smoke control

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