Fire doors

Marc-O - Single-leaf overhead fire shutter

Overhead shutters are perfect solution wherever space is available only above the opening. These shutters are also characterized by fire resistance up to EI120 and no limits as regards the size. This very popular product is particularly often used as a theater curtain.  It can be manufactured in any color of the RAL pallet. The shutter can be combined with the escape door with less than 20 mm high threshold of with threshold-type passage door.

DESIGN

Marc-O overhead door consists of the following components:

  • section of the carrier track,
  • leaf guides,
  • door leaf (leafs),
  • door magnetic locks,
  • rope pulley,
  • closing items,
  • counterweight,
  • guide rollers.

The door leaf is built of modified and hardened mineral wool of MARC type reinforced inside with the steel rods. The external surfaces of the leafs are cladded with metal sheet of individually agreed color. The door leafs are suspended on the rope pulley assemblies (fixed to the walls by standard). Link cable connects the leaf of the door with the counterweights which may be installed on one or on both sides of the door or in front of guide rails. By standard, each door is equipped with a magnetic lock (24V DC).

PRINCIPLE OF OPERATION

The door leaf is closed by gravity under of the gateway closes the gravitationally under its own weight. The closing speed is controlled by appropriate selection of the counterweight. Keeping the door open is also possible by connection of the magnetic lock to the fire protection control panel. In the event of a fire hazard the fire protection control panel releases the magnetic lock and the door leaf closes the passage between the zones. The door is opened manually (standard) or automatically by means of an electromechanical drive.

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Parameters

Fire resistance rating
EI60/EW120, EI120/EW180
Technical Approval
ITB AT-15-5023/2015
Certificate of conformity
ITB 1428/W, National Declaration of Conformity
Maximum door width S₀
15,000 mm
Maximum door height H₀
6,000 mm
RAL standard
7035, 9002, 9010
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