Description The QDY-Ⅲ series flow control servo valves are throttle valves for 3-way and preferably 4-way applications. These three stage servo valves are developed for applications that require high flow rates and high performance. These valves are offered with QDY-Ⅱseries pilot valves, which are suitable for electrohydraulic position, speed, pressure or force control systems with nigh dynamic response requirements.

Working Process To be specific, it can receive the electrical signal passed by system directly, and convert it into a load flow or pressure signal which is polarized, proportional and can control the electro-hydraulic servo valve, so that the system will output hydraulic power to drive the corresponding executive bodies. The performance and reliability of servo valve will directly affect the performance and reliability of the entire system, so theflow control servo valve is the core of electro-hydraulic servo-control system.