Free-standing Type Balancing Valve, is a valve which use fluid itself pressure change to achieve itself control, so can keep flow rate balance, Free-standing Type Balancing Valve have flow rate indicator, can regulate onliine, is suitable for flow rate control of non-corrosion fluid to heat supply and air conditioning system etc. One-time test before work, can make system flow rate fixed on preset value. This valve regulate flow rate accurately, easy operation, working smoothly, performance reliabe, long life span.