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28
X=70 mm (BFL - DN 100 ÷ DN 315)
X=53 mm (BFL - DN 355 ÷ DN 400)
X=72 mm (BFN)
X=78 mm (BF)
Position:
1
Damper casing
2
Actuating mechanism
3
Damper blade
4
Inspection hole covering
5
BAT thermoelectrical starting mechanism
6
Hole for camera
400
X
110
180
Ø
D
400
Ø
D
110
136
39
X
400
130
130
110
X
Ø
D