Technical Data; Medium; Temperature - GEM 650 Special function J Operating Instructions Manual

7 Technical data

7 Technical data

7.1 Medium

Working medium:
Control medium:

7.2 Temperature

Media temperature:
Sterilization temperature:
Ambient temperature:
Control medium temper-
ature:
Storage temperature:
Autoclavability:
GEMÜ 650 / 687 Special function
J
Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and
chemical properties of the body and diaphragm material.
The valve will seal in both flow directions up to full operating pressure (gauge pressure).
Inert gases
Diaphragm material
PTFE/EPDM (code 5M)
PTFE/EPDM (code 5M)
The sterilization temperature is only valid for steam (saturated steam) or superheated water.
If the sterilization 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 accord-
ingly.
PTFE diaphragms can also be used as steam barriers; however, this will reduce their service life. This also ap-
plies to PTFE diaphragms exposed to high temperature fluctuations. 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.
Steam input
Process pipe
Steam distribution Sterile process
0 — 60 °C
0 — 70 °C
0 — 40 °C
MG
10
40
max. 150 °C, permanent temperature per cycle
Actuator version
1T6, 1R6
3TA, 3RA
10 / 52
Standard
-10 — 100 °C
Autoclavability
autoclavable
with special version
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