GEM 550 Installation, Operating And Maintenance Instructions

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550_us
6 Technical data
Flow direction and weight
See order data / see data sheet page 4
Working medium
Max. perm. pressure of working medium see table
Media temperature -10° to 180° C
Max. permissible viscosity 600 mm²/s (cSt)
Other versions for lower/higher temperatures and higher viscosities
on request.
Corrosive, inert, gaseous and liquid media which have no
negative impact on the physical and chemical properties of
the body and seal material.
Max. ambient temperature 60° C
Ambient conditions
Nom.
size
Max. operating pressure [bar]
Normally closed (NC):
Flow direction under the seat
Max. operating pressure [bar]
Normally closed (NC):
Flow direction over the seat
Kv
values
[DN]
Actuator
size 0G
piston
ø 28 mm
Actuator
size 1G
piston
ø 42 mm
Actuator
size 2G
piston
ø 60 mm
Actuator
size 3G
piston
ø 80 mm
Actuator
size 4G
piston
ø 100 mm
Actuator
size 5G
piston
ø 130 mm
Actuator
size 0M
piston
ø 28 mm
Actuator
size 1M
piston
ø 42 mm
Actuator
size 2M
piston
ø 60 mm
Actuator
size 3M
piston
ø 80 mm
[m
3
/h]
810-----10---2.1
10 10 - - - - - 10 - - - 2.4
15 10 - - - - - 10 - - - 2.4
10 - 11 - - - - - 10 - - 4.5
15 - 11 25 - - - - 10 10 - 5,4
20 - 6 15 25 - - - 10 10 10 10.0
25 - - 8 16 25 - - - 10 10 15.2
32 - - 5 10 18 25 - - - 10 23.0
40 - - - 6 12 20 - - - 10 41.0
50 - - - 3 7 15 - - - 10 68.0
65-----10----95.0
80-----8----130.0
All pressures are gauge pressures. When the flow is over the seat (M), there may be the danger of water hammer with liquid media!
Please note that cast bronze valve bodies, when in pipe systems according to DIN are only suitable up to PN 16 max., cast stainless steel
bodies up to PN 25. Kv values determined acc. to IEC 534 standard, body with threaded sockets DIN ISO 228.
The Kv value data refers to control function 1 (NC) and the largest actuator for each nominal size.
Kv values may be different for other combinations.
Nom.
size
Control pressure [bar]
Normally closed (NC):
Flow direction under the seat
Control pressure [bar]
Normally closed (NC):
Flow direction over the seat
[DN]
Actuator
size 0G
piston
ø 28 mm
Actuator
size 1G
piston
ø 42 mm
Actuator
size 2G
piston
ø 60 mm
Actuator
size 3G
piston
ø 80 mm
Actuator
size 4G
piston
ø 100 mm
Actuator
size 5G
piston
ø 130 mm
Actuator
size 0M
piston
ø 28 mm
Actuator
size 1M
piston
ø 42 mm
Actuator
size 2M
piston
ø 60 mm
Actuator
size 3M
piston
ø 80 mm
84 - 8-----5 - 8---
10 4 - 8 - - - - - 5 - 8 - - -
15 4 - 8 - - - - - 5 - 8 - - -
10 - 4 - 8 - - - - - 5 - 8 - -
15 - 4 - 8 4 - 8 - - - - 5 - 8 5 - 8 -
20 - 4 - 8 4 - 8 4 - 8 - - - 5 - 8 5 - 8 5 - 8
25 - - 4 - 8 4 - 8 4 - 8 - - - 5 - 8 5 - 8
32 - - 4 - 8 4 - 8 4 - 8 5 - 8 - - - 5 - 8
40 - - - 4 - 8 4 - 8 5 - 8 - - - 5 - 8
50 - - - 4 - 8 4 - 8 5 - 8 - - - 5 - 8
65-----5 - 8----
80-----5 - 8----
Higher control pressures on request.
Control medium
Inert gases
Max. control pressure: 8 bar
Max. perm. temperature of control medium: 60°C
Filling volume Actuator size 0: 0.006 dm³
Actuator size 1: 0.025 dm³
Actuator size 2: 0.084 dm³
Actuator size 3: 0.245 dm³
Actuator size 4: 0.437 dm³
Actuator size 5: 0.798 dm³

GEM 550 Specifications

General

Brand	GEM
Model	550
Category	Control Unit
Language	English