STKG Series
Fail Safe & Quick Close – 90° part-turn actuator for ball valves and butterfly valves
The single-acting actuators of the STKG series are based on the STK series and are equipped with an additional spring pack. This stores energy and guarantees the positioning of your valve in the fail-safe position.
- Opening / closing torque up to 11,000 Nm
- Maximum operating pressure 150 bar
- Angle of rotation 0 to max. 94°
- Adjustable end stop on one side (on both sides for ball valves)
- Connection dimensions according to DIN ISO 5211
Special features
- Single-acting
- Spring-closing / -opening
- Fail-safe (fail-safe function)
- Mechanical, hydraulic and electronic position indication available
- Integrated hydraulic emergency operation (hand pump) possible
- SIL 2 capability according to IEC 61508
- SIL 3 with redundant design
- “Under medium” on request
Advantages
With hollow shaft and flange for compact mounting
High torques
Compact design
Service- and maintenance-friendly design
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