GEM 550 Installation, Operating, & Maintenance Instructions

550
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Control pressure [bar]
C. f. 1 Normally closed (NC) / Flow direction: under the seat
Actuator size
1G1, 1K1, 2G1, 2K1, 3G1, 3K1, 4G1, 4K1 4 - 8
0G1, 5G1, 5K1 5 - 8
C. f. 1 Normally closed (NC) / Flow direction: over the seat
0M1, 1M1, 1L1, 2M1, 2L1, 3M1, 3L1 max. 7 bar
Higher control pressures on request.
C. f. 2 Normally open (NO) / Flow direction: under the seat
for values see diagram see page 28
Kv values [m³/h]
DN 6 DN 8 DN 10 DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 DN 65 DN 80
Butt weld spigots,
DIN 11850
1.61.82.42.4-------
Butt weld spigots,
DIN 11866
- 2.2 4.5 5.5 11.7 20.5 33.0 51.0 61.0 110.0 117.0
Threaded sockets,
DIN ISO 228
- - 4.5 5.4 10.0 15.2 23.0 41.0 68.0 95.0 130.0
Kv values determined acc. to DIN EN 60534. The Kv value data refers to control function 1 (NC) and the largest actuator for each nominal size.
The Kv values for other product configurations (e.g. other connections or body materials) may differ.
Max. operating pressure [bar]
Actuator size DN 6 DN 8 DN 10 DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 DN 65 DN 80
C. f. 1 Normally closed (NC) / Flow direction: under the seat
0G1 10.0 10.0 10.0 10.0 - - -----
1G1 - 10.0 10.0 10.0 6.0 3.5 -----
2G1 - - 22.0 22.0 12.0 7.0 4.0 2.5 - - -
3G1 ----25.0 16.0 10.0 6.0 3.0 - -
4G1 - - - - - 25.0 18.0 12.0 7.0 - -
5G1 ------25.0 20.0 15.0 10.0 7.0
C. f. 1 Normally closed (NC) / Flow direction: over the seat
0M1 10.0 10.0 10.0 10.0 -------
1M1 - 10.0 10.0 10.0 10.0 10.0 -----
2M1 - - - 10.0 10.0 10.0 10.0 8.0 5.0 - -
3M1 ----10.0 10.0 10.0 10.0 10.0 -
-
C. f. 2 Normally open (NO) / C. f. 3 Double acting (DA) / Flow direction: under the seat
0G 20.0 20.0 20.0 20.0
1G - 25.0 25.0 25.0 17.0 11.0 - - - - -
2G - - - 25.0 25.0 24.0 15.0 8.0 - - -
3G ----25.0 25.0 25.0 19.0 12.0 - -
4G ------25.0 25.0 22.0 - -
5G ------25.0 25.0 25.0 25.0 18.0
All pressures are gauge pressures. When the flow is over the plug (M), there may be the danger of water hammer with liquid media!
For max. operating pressures the pressure/temperature correlation must be observed (see table on page 3).
Maximum permissible seat leakage class / Control valve
Seat seal Standard Test procedure Leakage rate Test medium
PTFE DIN EN 60534-4 1 VI air
Kv value Standard
DN Kv value [m³/h] max. Operating pressure [bar] Actuator size
15 2.1 10.0 1K1
15 2.1 22.0 2K1
20 4.6 10.0 1K1
20 4.6 22.0 2K1
25 9.8 12.0 2K1
40 23.0 10.0 3K1
50 44.0 5.0 3K1
65 51.5 7.0 4K1

GEM 550 Specifications

General

Brand	GEM
Model	550
Category	Control Unit
Language	English