Technical Data - Gemü 625 Original Einbau- Und Montageanleitung

5

Technical data

Working medium
Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and chemical properties of the body
and diaphragm material.
Temperatures
Medium temperature
FPM (code 4)
EPDM (code 13)
EPDM (code 17)
PTFE (TFM) (code 52)
Sterilisation temperature
FPM (code 4)
EPDM (code 13)
EPDM (code 17)
PTFE (TFM) (code 52)
¹ The sterilisation temperature is valid for steam (saturated steam) or superheated water.
² If the sterilisation temperatures listed above are applied to the EPDM diaphragms for longer periods of time,
the service life of the diaphragms will be reduced. In these cases, maintenance cycles must be adapted
accordingly. This also applies to PTFE (TFM) diaphragms exposed to high temperature fluctuations.
PTFE (TFM) diaphragms can also be used as moisture barriers; however, this will reduce their service life.
The maintenance cycles must be adapted accordingly.
GEMÜ 555 and 505 globe valves are particularly suitable for use in the area of steam generation and distribution.
The following valve arrangement for interfaces between steam pipes and process pipes has proven itself over
time: A globe valve for shutting off steam pipes and a diaphragm valve as an interface to the process pipes.
Ambient temperature
Control medium
Inert gases
Max. perm. temperature of control medium
Filling volume
Nominal Operating
size pressure
MG DN [bar]
10 10 - 20 0 - 6
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.
Diaphragm size DN
10
10 15
20
Kv values determined acc. to DIN EN 60534, inlet pressure 5 bar, ∆p 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
standard.
(1)
Control pressure
[bar]
C.f. 1 C.f. 2 C.f. 3
5 - 7 max. 5.5 max. 5.0
MG = Diaphragm size
Kv values [m³/h]
DIN EN 10357
Series B
Code 0 Code 16
- 2.4
3.3 3.8
-
Control function 2 + 3
6
5
4
3
2
1
Operating pressure [bar]
EN 10357 DIN 11850
Series A
Code 17
2.4
3.8
- -
23 / 40
max. 150 °C , max. 60 min per cycle
(2)
max. 150 °C , max. 180 min per cycle
(2)
max. 150 °C , no time limit per cycle
(2)
Steam input
Steam distribution
1 2 3 4 5
ASME BPE
Series 3
Code 18 Code 59
2.4 2.2
3.8 2.2
- 3.8
-10 to 90 °C
-10 to 100 °C
-10 to 100 °C
-10 to 100 °C
not applicable
Process pipe
Sterile process
0 to 60 °C
40 °C
0.02 dm³
C.f. 2
Stf. 2
C.f. 3
Stf. 3
6
ISO 1127 /
EN 10357
Series C
Code 60
3.3
4.0
-
625