ZL47F-16 self-operated balancing valve is mainly composed of an automatic regulating disc and manual regulating disc. Using the pressure change of the medium itself as the driving force, it automatically adjusts the balance of the flow of each branch pipeline, accurately stabilizes the flow, and has the functions of opening indication, locking, closing and so on. It is suitable for "flow control of non-corrosive media such as heating and air conditioning." One-time adjustment before operation automatically keeps the system flow at the required setpoint.