mcr WIP PRO/S - multi-blade cut-off fire damper

Key details

Damper for comfort ventilation systems.

Fire resistance class: EI120(ve i↔o)S, EI90(ho i↔o)S, E120(ho i↔o)S

Dampers certified for conformance with EN 15650.

Additional details

Certificate of constancy of performance 2434-CPR-0003.

Dampers are classified as per EN 13501-3 and tested according to EN 1366-2.

Declaration of performance 009-05-CPR-2016.

Optional EX making of dampers (as per ATEX directive) for applications in explosion hazard zones.

KDB ATEX 17.0616, EU Declaration of conformity 001-01-2017.

 

 

Description 

mcr WIP PRO/S multi-blade cut-off dampers are designed for use in general ventilation installation, in points of penetration of these installations through building partitions.  During fire, they allow to maintain fire resistance of the building partition through which ventilation and air conditioning ducts run. They also prevent propagation of fire, smoke and fire gases to the safe part of the building.

Cut-off dampers of fire resistance independent from direction of air flow and of installation side.

Fixed, narrow damper thickness, regardless of B x H dimensions.

 

When made for potentially explosive zones (EX variant), the dampers may operate in zone 1 (risk of explosion of gases inside and outside of ventilation ducts) and zone 21 (risk of explosion of dust outside ducts). The dampers conform to the requirements of group II category 2G and -/2D.

 

  • small thickness of damper - 135 mm
  • cut-off barrier does not protrude outside the damper body, regardless of damper dimensions
  • possible installation in a partition, on a duct ended with a duct cover
  • optional making in EX variant
  • optional making of dampers with penetrations for rounded ducts
  • operating reliability up to 10 000 cycles

 

Dimensions for rectangular dampers:

  • nominal width from 110 to 900 mm
  • nominal height from 263 to 1250 mm
  • maximum area of section of single damper not larger than 1.125 m2

Apart from standard dimensions, dampers can be customized to any size within the specified ranges.

 

Control:

  • RST-KW1/S - integrated mechanism - thermal trigger 74oC (optionally 95oC), in the mechanism, actuating spring, manual arming;
  • RST-KW1/S/WK1 or WK2 mechanism - integrated mechanism - thermal trigger 74oC (optionally 95oC) in the mechanism, actuating spring, one or two limit switches, manual arming;
  • RST-KW1/24l mechanism - integrated mechanism - thermal trigger 74oC (optionally 95oC) in the mechanism, actuating spring, one or two limit switches, electromagnetic trigger responding to current impulse, U=24V DC, manual arming;
  • RST-KW1/24P mechanism - integrated mechanism - thermal trigger 74oC (optionally 95oC) in the mechanism, actuating spring, one or two limit switches, electromagnetic trigger responding to power decay, U=24V DC, manual arming;
  • Belimo type mechanism - actuators series with return spring and thermoelectric trigger (BF, BFL, BFN, EXBF series).

Detailed technical data are contained in the technical catalogue.

Making variants:

  • mcr WIP PRO/S [BF…-T, BFL…-T, BFN…-T, EXBF] – cut-off fire damper for ventilation ducts, with electric actuator with return spring and thermoelectric trigger - damper shutting and opening using actuator
  • mcr WIP PRO/S [RST-KW1] – cut-off fire damper for ventilation ducts with spring actuator with integrated thermal activator; electromagnetic activator and limit switches available optionally

Additional equipment:

  • WK2 – limit switch (damper open/shut signal)

mcr WIP PRO/S dampers are particularly useful in cases when a silencer, a pipe elbow or an air flow grate is designed in the system behind the damper.