Two‑stage double nozzle‑flapper servo valve

This high‑precision electro‑hydraulic control component comprises torque motor, nozzle‑flapper pilot stage, power spool and force‑feedback rod. Input electric signal drives main spool via pilot hydraulic amplification. Mechanical closed‑loop by force‑feedback makes output flow proportional to control current for accurate cylinder position, velocity and force control.

Advantages: High resolution, fast response, excellent closed‑loop accuracy.

Applications: Material testers, motion simulators, loading test rigs and other precision closed‑loop hydraulic systems.