
3
Multi smoke dampers are shutters in the smoke exhaust duct systems. The dampers are designed to remove
heat and combustible products (e.g. smoke) from effected fire compartments. In the event of fire the Smoke
and Fire ventilation system opens the damper in the affected section and removes combustion products and
heat from this section.
The damper blade is controlled by electrical actuating mechanism.
Dampers are fire resistant and are intended for systems with automatic activation.
Dampers can be installed in construction of the fire compartment.
Basic types of dampers square:
• MSD Cycling test with load (possible design .44, .54, .65 and .66)
• MSD-W Cycling test without load (possible design .44, .54, .66, .4M0, .4M1, .5M0 and .5M1)
Basic types of dampers round:
• MSD Cycling test with load (possible design .44, .54 and .66)
• MSD-W Cycling test without load (possible design .4M0, .4M1, .5M0 and .5M1)
Dampers MSD can be open against flow and pressure.
Dampers MSD-W has to be open with the help of flow or without flow present.
Damper characteristics
• CE certified acc. to EN 12101-8
• Tested in accordance with EN 1366-10
• Classified acc. to EN 13501-4+A1
• Fire resistance according Tab. 1.2.1. and 1.2.2.
• External casing leakage class min. C acc. to EN 1751
• Internal leakage: round dampers - class min. 2, diameters from 560 mm to 630 mm min. class 3 acc. to EN 1751
square dampers - class min. 2, for max. dimension 1500 x 800 mm min. class 3 acc. to EN 1751
• Cycling test: MSD square dampers - Cmod acc. to EN 12101-8
MSD, MSD-W round dampers - C10000 acc. to EN 12101-8
MSD-W square dampers - C10000 acc. to EN 12101-8 (tested without load acc. to EN 1366-10)
• ES Certificate of conformity No. 1391-CPR-2021/0084 for MSD
• ES Certificate of conformity No. 1391-CPR-2021/0012 for MSD-W
• Declaration of Perfomance No. PM/MSD/01/21/2, PM/MSD-W/01/21/1
• Hygienic assessment of fire dampers - Report No. 1.6/pos/19/19c
Porous concrete ceiling construction, th. 150 mm
Porous concrete wall construction, th. 100 mm
Gypsum wall EI 120, th. min 125 mm
Porous concrete ceiling construction, th. 150 mm
Porous concrete wall construction, th. 100 mm
Gypsum wall EI 120, th. min 125 mm