Reductive three -way pressure proportional valves with integrated electronics in the open ring the Dzce5g, Dzce5rg, Dzce7g, DZCE8G are proportional valves of reducing pressure, with three ways, with integrated electronics, for plate assembly. In addition to reducing the pressure from via P towards users A, they allow the return of flow from users to the unloading t in cases where there is a pressure higher than the calibration value in the downstream circuit (users A). The integrated electronics has analog interface with reference signal in current or voltage with 6 -pin connection + PE. The valves are of simple installation. The digital card manages the settings directly.