18
Kitchen extract air valve (DN 100, DN 125)
177
a
177
220
220
30
Fig. 14
Nominal diam-
eter
Dimension
a in mm
Max. flow rate in m
3
/h
DN 100
100
60
DN 125
125
75
DN 100
80
70
60
50
40
30
20
20
40
50 60
80
100
10
Pressure drop
in Pa
Air flow rate in m³/h
10
E
A
C
D
B
30
70
90
Fig. 15
A
-
E
Pressure drop curves for valve positions:
A
Closed
E
Open: clear cross-section 50 %
Commissioning, inspection, maintenance
Metal ductwork (flat): presetting the…
(cont.)
5793 605 GB
