7.3 Pressure
Operating pressure:
MG
DN
Actuator
version
Diaphragm material
Elastomer
PTFE
Forged
material
Cast material with
and without lining
8
4 - 15
0B
0 - 10
0 - 10
0 - 6
10
10 - 20
0A
0 - 10
0 - 10
0 - 6
25
15 - 25
1A
0 - 8
0 - 8
0 - 6
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.
Pressure rating:
PN 16
Leakage rate:
Leakage rate A to P11/P12 EN 12266-1
Kv values:
MG
DN
Connection type
0
16
17
18
37
59
60
1
8
4
0.5
-
-
-
-
-
-
-
6
-
-
1.1
-
-
-
1.2
-
8
-
-
1.3
-
-
0.6
2.2
-
10
-
2.1
2.1
2.1
-
1.3
-
-
15
-
-
-
-
-
2.0
-
-
10
10
-
2.4
2.4
2.4
-
2.2
3.3
-
12
-
-
-
-
-
-
-
3.2
15
3.3
3.8
3.8
3.8
-
2.2
4.0
3.4
20
-
-
-
-
-
3.8
-
-
25
15
4.1
4.7
4.7
4.7
-
-
7.4
6.5
20
6.3
7.0
7.0
7.0
-
4.4
13.2
10.0
25
13.9
15.0
15.0
15.0
12.6
12.2
16.2
14.0
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.
MG
DN
GG 25
PFA / PP
Hard rubber
25
15
7.0
5.0
6.0
20
14.0
9.0
11.0
25
20.0
13.0
15.0
MG = diaphragm size, Kv values in m³/h
Kv values determined in accordance with EN 60534, inlet pressure 5 bar, Δp 1 bar, with connection flange EN
1092 length EN 558 series 1 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 pres-
sure, temperature, the process and their tightening torques. Therefore the Kv values may exceed the tolerance
limits of the standard.
The Kv value curve (Kv value dependent on valve stroke) can vary depending on the diaphragm material and dur-
ation of use.
GEMÜ 639 eSyStep
OPEN / CLOSE (Code AE)
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7 Technical data
