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7 Technical data
7.3 Pressure
Operating pressure:
Pressure rating:
Leakage rate:
Kv values:
GEMÜ 639 eSyStep
Positioner (Code S0)
MG
DN
8
4 - 15
10
10 - 20
25
15 - 25
40
32 - 40
MG = diaphragm size
All pressures are gauge pressures. Operating pressure values were determined with static operat-
ing pressure applied on one side of a closed valve. Sealing at the valve seat and atmospheric seal-
ing is ensured for the given values.
Information on operating pressures applied on both sides and for high purity media on request.
PN 16
Leakage rate A to P11/P12 EN 12266-1
MG
DN
0
8
4
0.5
6
-
8
-
10
-
15
-
10
10
-
12
-
15
3.3
20
-
25
15
4.1
20
6.3
25
13.9
40
32
25.3
40
29.3
MG = diaphragm size, Kv values in m³/h
Kv values determined in accordance with DIN EN 60534 standard, inlet pressure 5 bar, Δp 1 bar, stainless steel
valve body and soft elastomer diaphragm. The Kv values for other product configurations (e.g. other diaphragm
or body materials) may differ. In general, all diaphragms are subject to the influences of pressure, temperature,
the process and their tightening torques. Therefore the Kv values may exceed the tolerance limits of the stand-
ard.
The Kv value curve (Kv value dependent on valve stroke) can vary depending on the diaphragm material and dur-
ation of use.
Actuator
version
Elastomer
0B
0 - 10
0A
0 - 10
1A
0 - 8
1A
0 - 8
Connection type
16
17
18
-
-
-
-
1.1
-
-
1.3
-
2.1
2.1
2.1
-
-
-
2.4
2.4
2.4
-
-
-
3.8
3.8
3.8
-
-
-
4.7
4.7
4.7
7.0
7.0
7.0
15.0
15.0
15.0
27.0
27.0
27.0
30.9
30.9
30.9
12 / 72
Diaphragm material
PTFE
Forged
Cast material
material
with and without
lining
0 - 10
0 - 6
0 - 10
0 - 6
0 - 8
0 - 6
0 - 4
0 - 4
37
59
60
-
-
-
-
-
1.2
-
0.6
2.2
-
1.3
-
-
2.0
-
-
2.2
3.3
-
-
-
-
2.2
4.0
-
3.8
-
-
-
7.4
-
4.4
13.2
12.6
12.2
16.2
26.2
-
30.0
30.2
29.5
32.8
www.gemu-group.com
1
-
-
-
-
-
-
3.2
3.4
-
6.5
10.0
14.0
26.0
33.0
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