1. Equipped with MF or MFA series multi-spring film actuator produced by our company, compact structure and large output force. The positive and negative action of the actuator is convenient to change.

2. Small pressure drop loss, large flow, high flow accuracy, large adjustable range.

3. Large guiding area, good seismic performance.

4. The seat can be quickly changed and easy to maintain.

5. Leakage in accordance with GB/T 17213.4 / IEC 60534-4V.

6. Adjustable range: 1:50.

7. Return difference basic error dead zone always point deviation rated stroke deviation.