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fire dampers: rectangular dampers

mcr DOR

mcr DOR is a door shut-off valve for fire ventilation systems.

versions:

– smoke extraction – exhaust

– supply air – intake

The smoke dampers mcr DOR do not have a thermal release. They are intended for installation in general ventilation or smoke ventilation installations, at the point where these installations pass through building partitions. They can be used as:

– exhaust dampers that remove smoke and hot gases generated during a fire,

– supply air dampers with which a constant supply of outdoor air for smoke extraction is realized.

Dampers:

– mcr DOR / D1 – rectangular, single-flap dampers

– mcr DOR / D2 – rectangular, double-sided flaps

Mechanism:

– MERCOR release and control mechanism type EM24D equipped with a lever-cam system, 24VDC electromagnetic release and drive springs located directly on hinges of the damper partition. In case of damper D1, these are one or two springs depending on the dimensions of the device. In the case of the damper D2, two or four springs are similar.

Fire resistance: EIS 120 AA

ITB Technical Approval: AT-15-6523 / 2004 + Annex No. 1
ITB Certificate of Compliance: CZ-ITB-0872 / W

The smoke control dampers mcr DOR are produced in the following dimensions:

– D1 series – one-wing hatch; dimensions B x H from 200x300mm to 750x1150mm

– D2 series – double leaf flap; dimensions B x H from 400x300mm to 1150x1250m

In addition to standard dimensions, it is also possible to make indirect dampers with 1mm increments.

Note! The mcr DOR flap is available only on request. Detailed information available from our sales representatives.

 

single-wing flaps surface
Hw/Bw 200 300 400 500 600 700 750
300 0,06 0,09 0,12 0,15 0,18 0,21 0,23 406
400 0,08 0,12 0,16 0,20 0,24 0,28 0,30 506
500 0,10 0,15 0,20 0,25 0,30 0,35 0,38 606
600 0,12 0,18 0,24 0,30 0,36 0,42 0,45 706
700 0,14 0,21 0,28 0,35 0,42 0,49 0,53 806
800 0,16 0,24 0,32 0,40 0,48 0,56 0,60 906
900 0,18 0,27 0,36 0,45 0,54 0,63 0,68 1006
1000 0,20 0,30 0,40 0,50 0,60 0,70 0,75 1106
1050 0,21 0,32 0,42 0,53 0,63 0,74 0,79 1156
306 406 506 606 706 806 856 Bz/Hz

 

two-leaf flaps surface
Hw/Bw 400 500 600 700 800 900 1000 1100 1150
300 0,12 0,15 0,18 0,21 0,24 0,27 0,30 0,33 0,35 406
400 0,16 0,20 0,24 0,28 0,32 0,36 0,40 0,44 0,46 506
500 0,20 0,25 0,30 0,35 0,40 0,45 0,50 0,55 0,58 606
600 0,24 0,30 0,36 0,42 0,48 0,54 0,60 0,66 0,69 706
700 0,28 0,35 0,42 0,49 0,56 0,63 0,70 0,77 0,81 806
800 0,32 0,40 0,48 0,56 0,64 0,72 0,80 0,88 0,92 906
900 0,36 0,45 0,54 0,63 0,72 0,81 0,90 0,99 1,04 1006
1000 0,40 0,50 0,60 0,70 0,80 0,90 1,00 1,10 1,15 1106
1100 0,44 0,55 0,66 0,77 0,88 0,99 1,10 1,21 1,27 1206
1200 0,48 0,60 0,72 0,84 0,96 1,08 1,20 1,32 1,38 1306
1250 0,50 0,63 0,75 0,88 1,00 1,13 1,25 1,38 1,44 1356
506 606 706 806 906 1006 1106 1206 1306 Bz/Hz

 

Weight (kg)
dimension of the open hole with a square cross-section (mm) 300 400 500 600 700 800 900 1000 1100 1200
klapa D1 13 18 23 29 37 45 – – – –
klapa D2 – 22 28 34 42 51 60 71 83 95

 

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