The Electro-Hydraulic System EHS for rotary operations with PLEIGER actuators of series STK (rotary actuator) has been developed for the remote control of

• butterfly-and throttle valves
• ball-and cone valves
• needle valves
  

and can easily be integrated without any interface any central alarm monitoring and control system.

The EHS-System, hydraulic actuator with integrated electric power pack, combines perfectly the compactness and efficiency of a hydraulic system with the advantages of an electrical unit.

General characteristics and advantages of the EHS-System:

• no hydraulic control pipes
• simple and cost-saving operations
• energy saving
• small oil capacity
• completly closed and compact design
• small structural dimensions with high output torque
• low noise level
• bus-interface
• easy handling and maintenance

The EHS-actuators are ideal for a lot of applications:

• shipbuilding industry for ballast, bilge and fuel
  oil valves
• waste water plants
• chemical industry
• long-distance heat supply
• power and coking plants
• metallurgical and steel plan