EB 3135-1 EN
15
Design and principle of operation
10
10.1
10.2
8
8.7
6.2
6
7
6.1
6.3
8.3
1
8.5
3
5
4
8.4
8.1
2
8.6
3.1
3.6
1.4
Legend
1
Valve body
1.4 Coupling nut
2
Seat
3
Guide nipple
with plug
3.1 Plug balancing
3.5 Plug nipple
3.6 Seal
4
Plug stem
5
Set point spring
6
Actuator
6.1
Operating
diaphragm with
diaphragm plate
6.2 Screws
6.3 Diaphragm case
7
Control line
8
Connecting piece
8.1 Restriction stem
8.2 Set point adjuster
8.3 Adjustment
screw
8.4 Lead-seal hole
8.5 Restriction
8.6 Spring
8.7 Seal
10 Electric actuator
10.1 Actuator stem
10.2 Coupling nut
(actuator)
Valve, restriction and actuator (
DN 15 to 25, PN 25)
8.6
8.2
8.4
8
8.5
8.1
8.7
10.1
10
10.2
1
1.4
7
6.3
Actuator (
DN 15 to 25, PN 16)
3.5
3
3.6
Valve
(DN 32 to 50)
Restriction
(DN 32 to 50)
Fig. 3:
Design and principle of operation
