When a valve demands thrust or torque far beyond an ordinary electric actuator together with fast, precise response, the electro-hydraulic combination is a mature solution. YEPEF's electro-hydraulic actuators productize exactly this idea of "electric command, hydraulic power": command and control are handled on the electrical side, while power output is delivered by the hydraulic system.

The combination takes the best of both: the electrical side offers flexible signal handling, easy interfacing with DCS/PLC systems, and high positioning accuracy; the hydraulic side offers high power density — a compact cylinder delivers large thrust — with inherently smooth, shock-tolerant transmission. Together, electro-hydraulic actuators achieve what purely electric solutions struggle to combine in heavy, high-differential-pressure, fast-stroking duties.

Such actuators are commonly used on large power-station valves and process duties requiring large torque/thrust. Selection should also account for hydraulic-system maintenance (oil quality, seals) and installation space. For selection and quotation of YEPEF electro-hydraulic actuators, feel free to contact us.