ACCUMULATOR CHARGING VALVES

HYDAC accumulator charging valves with fixed switching pressure differential are used for the automatic reloading of a hydro-accumulator. If the pressure falls in the accumulator through oil removal by the value of the switching pressure differential, then the valve will close and the accumulator will be charged. Once the present pressure has been reached, the filling sequence is interrupted and the flow from the pump is guided, depressurised, to the tank.