ZLF-16 self-standing balancing valve, is a kind of use of the pressure change of the medium itself to self-regulate so as to keep the flow through the controlled system unchanged valve, ZLF self-supporting balancing valve has a flow indication, can be adjusted online, suitable for heating and air conditioning systems and other non-corrosive media flow control. One-time test adjustment before running automatically keeps the system flow constant at a pre-set setpoint. The valve has accurate flow regulation, simple operation, stable operation, reliable performance and long service life.