Product Conformity - GEM R677 Operating Instructions Manual

6 Technical data
Kv values:

6.4 Product conformity

Pressure Equipment Dir-
ective:
Food:
EAC:
Drinking water:
GEMÜ R677
MG
20
25
40
50
80
100
MG = diaphragm size, Kv values in m³/h
Kv values determined acc.to DIN EN 60534 standard, inlet pressure 5 bar, Δp 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.
The Kv value curve (Kv value dependent on valve stroke) can vary depending on the diaphragm material and dur-
ation of use.
2014/68/EU
FDA*
Regulation (EC) No. 1935/2004
Regulation (EC) No. 10/2011*
TR CU 010/2011
NSF/ANSI*
* depending on version and / or operating parameters
DN
15
20
25
32
40
50
65
80
100
40 / 64
Kv values
6.0
10.0
12.0
20.0
42.0
46.0
70.0
120.0
189.0
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