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Planning
24 | WOLF GmbH 3066501_201910
4.6.5
Minimum shaft sizes
Room sealed operation C93x
Assuming: 1 x 87° bend + 1.5 m horizontal with 87° support bend
a
a
Ø
10
8
110
120
130
140
150
160
12
14
16
18
20
22
24
26
28
30
32
COB-2-15/-20
[m]
a x a [mm]
10
8
12
14
16
18
20
22
24
26
28
30
32
120
130
140
150
160
170
Ø [mm]
[m]
DN80 (COB-2-15/20/29), DN110 (COB-2-40)
Ø [mm]
[m]
[m]
a x a [mm]
DN60 (COB-2-15)
COB-2-29
COB-2-40
COB-2-15/-20
COB-2-29
COB-2-40
Fig. 4.5
Shaft size
q
Max. vertical length [m]
w
Rigid flue
e
Flexible flue
Open flue operation B23, B33 and room sealed operation C53(x)
Due to the need for permanent secondary ventilation between the flue and shaft in accordance with DIN
18160, when installing rigid and flexible air/flue gas lines in a shaft, the following min. shaft sizes are
required:
Circular diameter
Rectangular width
DN 60
130 mm
110 mm
DN 80
150 mm
130 mm
DN 110
190 mm
170 mm
Table 4.11 Minimum shaft size