Plug & Play – ready-to-use actuator solution for quarter-turn valves.
The electro-hydraulic actuators of the EHS-D3 series combine the advantages of electric and hydraulic actuator technology and are ready for immediate commissioning. A combination of EHS Power Pack, paired with a hydraulic STK actuator provides a powerful unit that is electrically controlled and generates torques up to 50,000 Nm. It contains a closed hydraulic system, which does not require any external hydraulic lines and can be used flexibly due to its maintenance-free design. A wide range of sensors and modules are available for integration into Industrial 4.0 and IoT systems.
Whether ball valve or butterfly valve, dry or wet installed, the EHS-D3 is available in a wide range of designs.
Special Features
- Electro-hydraulic drive consisting of EHS Power Pack and double-acting drive
- Ready for immediate use
- Constant torque over the entire swivel angle
- Torque up to 50,000 Nm
- Angle of rotation 90°
- Flange connection to DIN ISO 5211
- Electrically powered
- Without external hydraulic lines
- Optical position indicator
- Adjustable end position
- Low oil quantity
- Maintenance-free
- –25°C … +70°C
Advantages
- Functional safety for SIL 2 to IEC 61508
- Power supply 230V/400V
- Electric limit position switches / position indicator
- Integrated hydraulic emergency actuation (hand pump) possible
- Bus connection Modbus/Profibus, others upon request
- Explosion protection class: ATEX/IECEx
- Low temperature version: –55°C
- Submerged (upon request)
- IP67/IP68
- Bronze version
- End positions adjustable on both sides (for ball valves)
