mcr PL1
overpressure-bleed damper
MERCOR SA –
The Company reserves the right to make modifications and changes.
4/9
3
2
4
1
Operation _________________________________________________________________________
Dampers are closed in a normal operation. When the differential pressure exceeds the threshold value of
50 Pa (set by the Manufacturer), the blades open rapidly, thus levelling the pressure, which drops below
the threshold activating value. After the reduction of pressure in the protected space, the damper returns
to the stand-by status automatically due to the weights mounted on its blades. The rapid reaction of the
device to changing pressure enables a suitable flow of an air stream.
Driving and Tripping Systems ____________________________________________________
The driving system of mcr PL1 dampers is made of suitably selected steel weights that are mounted on
blades of the device.
Dimensions _______________________________________________________________________
Mcr PL1 dampers are manufactured in the following dimensions:
Height
Breadth B [mm]
H [mm]
450
550
650
800
900
1100
1300
1350
1600
1650
1800
1950
450
1(450)
2(450)
3(450)
4(450)
550
1(550)
2(550)
3(550)
650
1(650)
2(650)
3(650)
800
1(800)
2(800)
900
2(450)
4(450)
6(450)
8(450)
1100
2(550)
4(550)
6(550)
1300
2(650)
4(650)
6(650)
1350
3(450)
6(450)
9(450)
12(450)
1600
2(800)
4(800)
1650
3(550)
6(550)
9(550)
1800
4(450)
8(450)
12(450)
16(450)
1950
3(650)
6(650)
9(650)
Marking:
1 number of dampers in a set
(..) sizes of dampers in a set
Note:
H and B sizes are gross dimensions of
dampers.
