The pressure reducing valves V82 from GF Piping Systems reduce the pressure within the system to a pre-set value. By using the differential pressure, the pressure reducing valve adjusts itself to the set working pressure.



The outlet pressure (working pressure) is not directly related to the inlet pressure. If the outlet pressure increases or decreases above/below the desired value, the diaphragm is lifted against the spring force or pressed down by the spring force, as the case may be, by the outlet pressure. 



The pressure reducing valve begins to close/open until a state of equilibrium is re-established; in other words, the outlet pressure remains constant irrespective of an increasing or decreasing inlet pressure