The basic function of the anti-surge valve is to achieve precise valve position control under normal conditions, fast opening and closing, and quickly open the valve in times of crisis. The anti-surge valve has a reliable quick opening performance, and as long as the pressure is too high, it can release the pressure fluctuation due to the surge.

It also has excellent adjustment performance, when the operating point is close to the anti-surge line, it can fully adjust the flow to avoid the surge point. It also has a sensitive step response, and the overshoot should be limited to a minimum to meet pressure and flow changes such as when the fan is started and stopped. Its control system has a position feedback signal. The monitor valve can be opened at any time [the opening of the door.

The anti-surge valve can be applied to the anti-surge control of the centrifugal fan, and the anti-surge control of the centrifugal fan is realized by an anti-surge valve installed at the outlet of the fan. The purpose of the anti-surge control of the centrifugal fan is to change the system characteristics of the pipe network so that the operating conditions of the fan are below the pre-designed anti-surge line.

The anti-surge line is also a safety line. When the operating point of the fan is close to the anti-surge line, an alarm signal will be automatically sent to remind the staff.