1. The self operated pressure regulating valve does not need additional energy, and can work in the situation without electricity and gas, which is convenient and energy saving.

2. The range of pressure sections is narrow and cross each other, and the adjustment accuracy is high.

3. The pressure setting can be set continuously during operation.

4. Adjust the pressure behind the valve. The ratio between the pressure before the valve and the pressure behind the valve is 10:1~10:8

5. Rubber diaphragm type detection, the actuator has high detection accuracy and sensitive action.

6. The pressure balance mechanism is adopted to make the control valve responsive and precise.