Technical Data; Medium; Temperature; Pressure - Gemü R647 Betriebsanleitung

7 Technical data

7.1 Medium

Working medium:
Control medium:

7.2 Temperature

Media temperature:
Ambient temperature:
Storage temperature:
Control medium temper-
ature:

7.3 Pressure

Operating pressure:
Control pressure:
Pressure/temperature
correlation:
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Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and
chemical properties of the body and diaphragm material.
Inert gases
Valve body material
PVC-U, grey (code 1)
ABS (code 4)
Inliner PP-H grey / outliner PP, reinforced (code
71)
Inliner PVDF / outliner PP, reinforced (code 75)
Valve body material
PVC-U, grey (code 1)
ABS (code 4)
Inliner PP-H grey / outliner PP, reinforced (code
71)
Inliner PVDF / outliner PP, reinforced (code 75)
0 — 40 °C
max. 40 °C
0 — 6 bar
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.
The operating pressures apply at room temperature. In case of deviating temperatures, observe the
pressure / temperature correlation.
The permissible operating pressure depends on the working medium temperature.
Observe control pressure / operating pressure diagram
max. 10 bar
Valve body
material
Materials Code -10
PVC-U 1 -
ABS 4 6.0
PP-H 71 -
PVDF 75 6.0
The pressure rating (PN) depends on the diaphragm size.
Data for extended temperature ranges on request. Please note that the ambient temperature and media temper-
ature generate a combined temperature at the valve body which must not exceed the above values.
Temperatures in °C (valve body)
0 5 10 20
- - 6.0 6.0
6.0 6.0 6.0 6.0
- 6.0 6.0 6.0
6.0 6.0 6.0 6.0
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10 — 60 °C
-10 — 60 °C
5 – 80 °C
-10 — 80 °C
10 — 50 °C
-10 — 50 °C
5 — 50 °C
-5 — 50 °C
30 40 50 60
6.0 6.0 3.5 1.5
6.0 6.0 4.0 2.0
6.0 6.0 5.5 4.0
6.0 6.0 6.0 6.0
7 Technical data
70 80
- -
- -
2.7 1.5
5.4 4.7
GEMÜ R647