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7 Technical data
7.3 Pressure
Operating pressure:
GEMÜ 656
MG
DN
40
25
40
65
50
65
100
80
100
150
125
150
200
200
250
250
MG = diaphragm size
All pressures are gauge pressures. Operating pressure values were determined with static operating pressure
applied on one side of a closed valve. Sealing at the valve seat and atmospheric sealing is ensured for the given
values.
Information on operating pressures applied on both sides and for high purity media on request.
Valve not suitable for vacuum applications
NPS
Control
function
1"
1
2
3
1½"
1
2
3
2"
1
2
3
2½"
1
2
3
3"
1
2
3
4"
1
2
3
5"
1
2
3
6"
1
2
3
8"
1
1
2
3
10"
1
2
3
10 / 36
Actuator
Operating
size
pressure
2R2
7.0
2RF
7.0
2RD
7.0
2R2
7.0
2RF
7.0
2RD
7.0
3R1
7.0
3RF
7.0
3RD
7.0
3R1
7.0
3RF
7.0
3RD
7.0
4R1
6.0
4RF
7.0
4RD
7.0
4R1
6.0
4RF
7.0
4RD
7.0
5R2
4.0
5RF
5.5
5RD
5.5
5R2
4.0
5RF
5.5
5RD
5.5
6R2
3.0
6R3
3.5
6RF
3.5
6RD
3.5
-
-
6RF
3.5
6RD
3.5
www.gemu-group.com
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