
25
3910832
Subject to changes in keeping with technical developments!
Filter box FK
With laterally extendable bag filter insert (Filter Class G3, depth 100 mm)
Type
B
mm
H
mm
T
mm
Weight
kg
FK-140
560
440
400
11.0
FK-250
640
515
400
12.2
FK-400
800
630
400
15.5
FK-650
880
740
400
18.0
FK-1000
1040
890
400
21.2
ALK external air box
The external air box can be used to block the supply air flow when external air is used. It can be used as shut-off damper
upstream of an air heater, as shut-off damper in duct systems or as shut-off damper for ceiling extractors (natural con-
vection).
Type
B
mm
H
mm
T
mm
Weight
kg
ALK-140
560
440
180
7.4
ALK-250
640
515
180
11.9
ALK-400
800
630
180
19.4
ALK-650
880
740
180
25.9
ALK-1000
1040
890
230
35.9
SG protective grid
The protective grid can be used to cover the filter box when air is taken directly from the room into the filter box.
Type
b
mm
h
mm
Weight
kg
SG-140
555
435
0.8
SG-250
635
510
1.1
SG-400
795
625
1.6
SG-650
875
735
1.9
SG-1000
1035
885
2.9
"Product description"