Technical Data; Medium; Temperature; Pressure - Gemü R91 Betriebsanleitung

6 Technical data

6.1 Medium

Working medium:
The valves are not suitable for fluids containing solids.

6.2 Temperature

Media temperature:
Ambient temperature:

6.3 Pressure

Operating pressure:
Vacuum:
Pressure loss:
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Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and
chemical properties of the body, plate and seal material.
Seal material.:
NBR (Code N): -30 — 90 °C
FKM (Code V): -15 — 200 °C
EPDM (Code W)*: -15 — 120 °C
with special seal (on request) up to 300 °C
* with WRAS drinking water approval up to 85 °C
-20 — 95 °C
max. 16 bar
Can be used up to a vacuum of 100 mbar (abs), or with bonded O-ring (K-no. 2577) up to a vacuum
of 20 mbar (abs)
These values apply to room temperature and air. The values may deviate for other media and other
temperatures.
100000
10000
1000
100
1
0,1 0,2 0,3 0,4 0,5
Pressure loss [bar]
25 / 40
DN 700
DN 600
DN 500
DN 450
DN 400
DN 350
DN 300
DN 250
DN 200
DN 150
DN 125
DN 100
DN 80
DN 65
DN 50
0,6 0,8 1
0,7 0,9
6 Technical data
GEMÜ R91