EB 8140 EN
13
Design and principle of operation
∅
D
∅
d
H
L
∅
d
H
L
∅
D
DN 15 to 50
DN 65 and 80
3.4 Permissible differential pressures
The specifications for the standard version have a dark gray background.
3.4.1
Version FA/NC with fail-safe position: fail-close
Nominal size
DN
15 · 20
25
32 · 40 · 50
65 · 80
Actuator
Signal pressure in
bar
Δp
Actuator area
30 cm²
5.0
20
10
4
–
60 cm²
4.0
16
16
6
–
5.4
–
16
10
–
120 cm²
5.8
–
–
–
10
