Electric-Hydraulic Actuators
self contained design
According to German VDI/VDE-Guideline 3844, customers specifications or other international standards
● Modulating position control with servo-valve, analog input signal electric or pneumatic ● Step control or open-close function with electric impulses (binary signals) ● Possible designs for failsafe position in case of electric power supply failure:
- Blocking in the last control position
- Moving to limit position open or close by using a hydraulic accumulator or with spring force ● Special designs for operation in potentially explosive atmospheres