The REG Automatic Flow Regulating Valve, automatically regulates the flow within a system. Regardless of pressure fluctuations, the valve keeps the flow permanently constant. Since this state can be maintained within a wide range of pressures, this valve is particularly suitable for networks suppling several users. This is why it is also described as a "balance valve". The valve has no manually operated parts and requires no maintanence once it has been installed. There are no electrical or pneumatic control lines. The valve is self-actuating and requires no additional energy source to operate.