Pressure container

A pressure vessel comprising at least one intermediate part having a first and a second end and formed from a casing, an end wall connected to each respective end of said intermediate part, and a plurality of longitudinally disposed internal reinforcing walls dividing said intermediate part into several fluid-accommodating compartments, wherein the intermediate part and said enclosed longitudinal reinforcing walls are integrally formed with one another, and wherein the said respective end walls are attachable by fastening means to the ends of the said intermediate part so that forces arising inside the vessel as a result of the internal overpressure against the respective end wall are distributed axially through the intermediate part casing and the longitudinal reinforcing walls, said walls extending radially, and at least one of said end walls having external and internal couplings and connected by means of an external threaded coupling and said internal threaded coupling to the intermediate part, with the external threaded coupling connecting the outer peripheral of the intermediate part to said end wall, and the internal threaded coupling connecting a core of said intermediate part with a nave part of said end wall.