Hollow body manufacturing machine

Hollow body making machine comprising at least one shape within which a hollow body. can be prepared by a pressurized medium by means of applying, at least two valves having valve unit, wherein an input of a second valve having a second property at a second pressure accumulator is connected is an output of the second valve via a channel with a blow nozzle connected wherein the input of a first valve is connected to a first, under a first pressure accumulator and is also connected to the output of the first valve via a channel to the blowing nozzle, said blowing nozzle during at least part of the molding process, the material to be molded and / or in the form of sealing against the environment, wherein the first valve comprises a valve housing and a cavity is formed within the housing between the inlet and the outlet, within which the medium is durchleitbar during the molding operation, and within which at least a part of a switching element angeo is RDnet with which an opening and closing of the first valve can be carried out, so that separate flow paths for the medium can be made available between the input and the output of the first valve at least two through material of the housing and / or the switching element of each other.