Pressure Independent Control Balancing Valve: SD 9777/9776

SD 9777 balancing valve is designed for the automatic balancing of heating and cooling systems, regardless of fluctuating pressure conditions of the system.

Thanks to its unique design, SD 9777 balancing valve is able to perform three functions:

  • REGULATION
    Selection of required flow rate;
  • CONTROL
    Constant flow rate indipendent of pressure fluctuations;
  • MODULATION
    “Full authority” flow rate modulation.