Abstract: An apparatus for expanding plastic preforms into plastic containers by a liquid medium using at least one forming station that fills and expands the plastic preforms used in the liquid medium using at least one supply device that supplies the liquid medium to a filling device of this forming station, wherein this filling device is configured to fill the liquid medium into the plastic preforms, and wherein the apparatus has a pressure generation device that supplies the liquid medium under pressure to the filling device. The pressure generation device has at least two pressure generation units that are configured to provide the liquid medium under pressure to the filling device.

Abstract: Provided is an apparatus for expanding plastics material parisons into plastics material containers by a liquid medium having at least one transforming station, which fills and expands the plastics material parisons with the liquid medium with at least one delivery device, which delivers the liquid medium to a filling device of this transforming station, wherein this filling device is suitable and intended to fill the liquid medium into the plastics material parisons, and wherein the apparatus has a pressure generating device which delivers the liquid medium under pressure to the filling device. According to embodiments of the invention the pressure generating device has at least two pressure generating units which are suitable and intended to provide the liquid medium under pressure to the filling device.