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mcr FID PRO - low-resistance rounded single-blade fire cut-off damper for comfort ventilation systems

Fire resistance class: EI120(ve ho i↔o)S / EI180(ho i ↔o)S

Certificate of constancy of performance 2434-CPR-0009.

Dampers certified for conformance with EN 15650.

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

Declaration of performance 003-05-CPR-2015.

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.

 

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

Reduced acoustic noise and hydraulic resistance in the system due to reduction in thickness of the barrier.

 

mcr FID PRO low-resistance cut-off dampers are designed for use in comfort ventilation installation, in points of penetration of these installations through vertical and horizontal building partitions. They are installed in systems with increased acoustic requirements.  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.

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.

  • low flow resistance
  • nipple or muff variant
  • installation in walls and ceilings
  • optional making in EX variant
  • operating reliability up to 10 000 cycles

Dimensions for rounded dampers:

  • nominal width from 100 to 315 mm

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

 

Control:

  • RST mechanism - thermal trigger 72oC (optionally 95oC) on partition, actuating spring, manual arming;
  • RST/WK1 mechanism - thermal trigger 74oC (optionally 95oC) on partition, actuating spring and limit switch, manual arming;
  • 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 (BFL, BFN, EXBF series).

Detailed technical data are contained in the technical catalogue.

Making variants:

  • mcr FID PRO [BFL…-T, BFN…-T, EXBF] - cut-off damper for ventilation ducts with electric actuator with return spring and thermoelectric trigger - damper shutting and opening using actuator
  • mcr FID PRO [RST] - fire cut-off damper for ventilation ducts with spring actuation and thermal trigger
  • mcr FID PRO [RST-KW1] - fire cut-off damper for ventilation ducts with spring actuation with integrated thermal trigger and optional electromagnetic trigger and limit switches

Additional equipment:

  • WK1 - limit switch (closed partition signaling)
  • WK2 - limit switch (closed/open partition signaling)