The adjustable vacuum regulator valve is installed in high-rise building drainage system piping, special valves for the inlet pressure is reduced to a desired outlet pressure. Adjustable vacuum regulator valve to rely on its own energy export pressure remained stable at the set value, the outlet pressure is not due to changes in inlet pressure and flow changes at the inlet and the valve control system is equipped with a self-cleaning filter fluid properties, so that a large proportion of the larger diameter of suspended particles will not enter the control system to ensure system circulation unimpeded, so that the valve to the safe and reliable operation. The system is sensitive, long service life.