Structure and performance of self-operated flow control valve

The function of self-operated flow control valve is to keep the flow through the valve constant when the pressure difference between the inlet and outlet of the valve changes, so as to keep the flow of the controlled object (such as loop, user, equipment, etc.) constant. , the same below) in series with its constant. There are many names of self-operated flow control valves, such as self-operated flow balance valve, constant flow valve, self-balancing valve and dynamic flow balance valve. Various types of self-operated flow control valves have different structures.