EB 3003 EN
7
Design and principle of operation
Fig. 1:
Functional diagrams of Type 42-24 and Type 42-28
Type 42-24
Type 42-28
2
3
4
5.1
P
1
P
2
2
1
3
4
5
11
21
13
15
16
17
20
20
19
18
14
12
+
_
P
1
P
2
4
16
13
21
20
20
+
_
12
15
11
19
18
Type 42-24
Type 2428 Actuator
Type 2424 Actuator
Type 2422 Valve, balanced by a diaphragm
(DN 65 to 250)
Type 2424 Actuator
Type 2422 Valve, balanced by a bellows
(DN 15 to 250)