GEM 520 Installation, Operating And Maintenance Instructions page 19

Control function 1
Operating Control Actuator
pressure pressure
DN [bar]
30.0 3.0 - 7.0
32
40.0 4.5 - 7.0
20.0 3.0 - 7.0
40 35.0 4.5 - 7.0
40.0 5.5 - 7.0
12.0 3.0 - 7.0
25.0 4.5 - 7.0
50
30.0 5.5 - 7.0
40.0 4.0 - 7.0
6.0 3.0 - 7.0
10.0 4.5 - 7.0
65
16.0 5.5 - 7.0
40.0 5.5 - 7.0
3.0 3.0 - 7.0
6.0 4.5 - 7.0
80
9.0 5.5 - 7.0
25.0 5.5 - 7.0
4.0 4.5 - 7.0
100 6.0 5.5 - 7.0
12.0 5.5 - 7.0
3.5 5.5 - 7.0
125
8.0 5.5 - 7.0
150 4.5 5.5 - 7.0
All pressures are given as gauge pressures, when applied upstream only. Higher pressures and temperatures on request.
Kv values determined acc. to DIN EN 60534 standard, valve body material cast iron EN-GJL-250 and flanges EN 1092. The Kv value data
refers to control function 1 (NC) and the largest actuator for each nominal size. Kv values may be different for other combinations.
Operating pressure - Control pressure
Actuator size code 5
Max. perm. control pressure
8
7
6
5
4
3
2
1
0
2 3 4 5 6
0 1 7
Operating pressure in bar
Note: The above diagrams give the minimum control pressure for "normally open" actuators (control function 2) for different
operating pressures. For "double acting" actuators (control function 3) the control pressure is 1 bar less than that given in the
diagrams.
Control function 2
Operating
Weight
size pressure pressure
Code [kg] [bar]
3/1 26
40 max. 3.0
3/2 28
3/1 27
3/2 29 40 max. 4.0
3/3 30
3/1 30
3/2 32
40 max. 5.5
3/3 33
4/2 51
3/1 37
3/2 39
35 max. 7.0
3/3 40
4/3 73
3/1 40
24 max. 7.0
3/2 42
3/3 43
40 max. 4.5
4/3 76
3/2 53
16 max. 7.0
3/3 54
4/3 87 40 max. 7.0
3/3 66 10 max. 7.0
4/3 99 24 max. 7.0
6 max. 7.0
4/3 118
16 max. 7.0
8 9
10 11 12 13 14 15 16
Control Actuator Operating
Weight
size
Code [kg]
5 31
5 33
5 36
5 43
5 46
6 63
5 57
6 77
5 69
6 89
5 88
6 108
Operating pressure - Control pressure
Max. perm. control pressure
8
7
6
5
4
3
2
1
0
0 1 2 3
19 / 32
Control function 3
Control Actuator
pressure pressure size
[bar] Code
40 max. 2.5 7
40 max. 3.5 7
40 max. 5.0 7
36 max. 7.0 7
25 max. 7.0 7
40 max. 4.0 8
16 max. 7.0 7
40 max. 7.0 8
10 max. 7.0 7
25 max. 7.0 8
6.0 max. 7.0 7
16.0 max. 7.0 8
Actuator size code 6
4 5 6 7 8 9
10 11 12
Operating pressure in bar
Kv
Weight
values
[kg] [m³/h]
30 15
32 23
35 36
42 75
45
113
62
56
175
76
68
275
88
87
400
107
13 14 15 16
520