18
6.4 Shared exhaust duct
It is recommended that each machine is connected to a separate exhaust duct.
When several machines shall use the same exhaust duct the exhaust duct must increase after
each machine.
⑮
Number of machines
Exhaust duct ⌀ mm
Minimum area of fresh-air intake
m
2
The exhaust duct diameter must not be reduced.
Evacuation system
1
2
3
4
200
280
315
355
0.15
0.30
0.45
0.60
5
6
7
8
400
450
475
500
0.75
0.90
1.05
1.20
9
10
535
560
1.35
1.50