Gemü 617 Original Einbau- Und Montageanleitung Seite 26

Temperature in °C
(plastic body)
Valve body material
PVC-U Code 1
ABS Code 4
PP Code 5
PP-H Code 71
PVDF Code 20
Data for extended temperature ranges on request.
Please note that the ambient temperature and medium temperature generate a combined temperature at the valve body which must not
exceed the above values.
Diaphragm size
25
40
50
80
100
The above values are valid for both flow directions.
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.
Kv values determined acc. to DIN EN 60534, inlet pressure 5 bar, ∆p 1 bar, PVC-U 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 standard.
Valve body mounting dimensions [mm]
Diaphragm size
25
40
50
80
100
617, 677
Pressure / temperature correlation for plastic
-20 -10 ±0
- - -
10.0 10.0 10.0
- - -
- - -
10.0 10.0 10.0
DN
15
20
25
32
40
50
65
80
100
M f
M6 25.0
M8 44.5
M8 44.5
M12 100.0
see drawing
5 10 20 25
Permissible operating pressure in bar
- 10.0 10.0 10.0
10.0 10.0 10.0 10.0
10.0 10.0 10.0 10.0
10.0 10.0 10.0 10.0
10.0 10.0 10.0 10.0
Operating pressure [bar]
EPDM / FPM
0 - 10
0 - 10
0 - 10
0 - 10
0 - 10
26 / 44
30 40 50 60
8.0 6.0 3.5 1.5
8.0 6.0 4.0 2.0
8.5 7.0 5.5 4.0
8.5 7.0 5.5 4.0
9.0 8.0 7.1 6.3
Kv value
PTFE [m³/h]
5.6
0 - 6 8.2
10.5
0 - 6 18.0
25.0
0 - 6 46.0
0 - 6 78.0
120.0
0 - 6 189.0
70 80
- -
- -
2.7 1.5
2.7 1.5
5.4 4.7
DN 15 - 80
DN 100