This new generation flow balancing control valve automatically balances the HVAC system effectively.

Advantages:
1. to make the system balance by setting max. flow limit
2. 2 in 1 design, flow balancing plus control modulating valve
3. compared with cartridge design balancing valve, it's
a) less water circuit resistance which will decrease energy consumption of the system 
b) lower operating cost, no needs for skillful labor and special tools
c) simple design, simple operation
d) pressure independant