ST6135.B6-2G
Pneumatic actuators for control
and on/off valves
• Approved by German Technical Inspectorate
(TÜV) as safety functional device for steam
and water in heating systems.
• Spring closed or open
• Max. stroke 60 mm
• Max. air supply 6 bar
• Max. actuating force 10 kN
• Direct mounting of positioner
with internal air supply
• Special applications possible
-C5-M Marine air resistant
-OX For oxygen as operating medium
General Information
Technical data
Type ST 6115 ST 6135 ST 6160 ST 6160
.A6-3S .C6-4S .B6-2G .B6-6G .A6-6G .C6-3G .C6-7G
Diaphragm area 120 cm² 280 cm² 530 cm² 530 cm²
Spring range (bar) 0.9 … 2.0 0.8 … 2.4 0.2 … 1.0 0.8 … 3.0 0.8 … 2.8 0.3 … 1.3 0.7 … 3.0
Stroke 20 mm 25 mm 35 mm 40 mm 60 mm*
Operating pressure (bar) Min. 2.2 Min. 2.6 Min. 1.2 Min. 3.2 Min. 3.0 Min. 1.5 Min. 3.2
Max. 6 Max. 6 Max. 6 Max. 6 Max. 6 Max. 6 Max. 6
Actuator volume 0.4 LN 1.7 LN 2.8 LN 3.6 LN
Ambient temperature -40 °C to +80 °C -20 °C to +80 °C
Coating Acrylic
Weight 3 kg 5 kg 12.5 kg 14 kg
Connection ¼" NPT Female thread
Mounting position Any
*50 mm for direction of action « open »; spring range reduced
Options
Handwheel Mounted on top
Limit switches Contact rating max. 6 A, 400 V
Protection IP 65
3 / 2-solenoid valve 24 V DC, 24 V, 115 V, 230 V 50 / 60 Hz, EEx
The safety function according to DIN EN 14597:2005-12 is only possible
in combination with a solenoid valve which fullills the requirements of the
Mounted on top mentioned directive.
Positioners
SRP 981 0.2 … 1.0 bar max. 6 bar
SRI 990 4 – 20 mA 2-Wire
SR 6136 (Sipart) 4 – 20 mA 2 / 3 / 4-Wire
SR TZIDC 4 – 20 mA 2-Wire
SR 1000 L 4 – 20 mA 2-Wire
SR 3300 4 – 20 mA 2-Wire
Other options available on request
Important note : The actuator needs in conjunction with the approval DIN EN 14597:2012-09
for failure free service, dry oil free instrument air
• Particle size 30 μm
• Pressure dewpoint 20 K under ambient temperature