A pressing arrangement for treatment of at least one article by means of hot isostatic pressing, the pressing arrangement comprising a pressure vessel including: a furnace chamber comprising a furnace, wherein the furnace chamber is at least in part surrounded by a heat insulated casing, and wherein the furnace chamber includes a load compartment configured to hold at least one article to be treated, wherein the load compartment is arranged so as to allow for a flow of pressure medium through the load compartment; and at least two flow generators arranged for generating a flow of pressure medium through the load compartment, wherein a flow of pressure medium into the load compartment is generated by transporting pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion of the pressure vessel and injecting the pressure medium into the load compartment by way of a transport pipe arranged in a via hole of the bottom insulating portion; wherein the at least two flow generators comprise a first flow generator and a second flow generator, wherein the second flow generator comprises a primary ejector arranged below the bottom insulating portion, and a secondary ejector, wherein the secondary ejector is arranged in relation to the primary ejector so as to receive the flow of pressure medium generated by the primary ejector and generate a flow of pressure medium into the load compartment, wherein the secondary ejector is arranged below and through the bottom insulating portion, and wherein the secondary ejector has at least one outlet, close to the first flow generator and upstream or downstream the first flow generator, by which the flow of pressure medium is injected into the load compartment so that an overpressure arises at the at least one outlet. a furnace chamber comprising a furnace, wherein the furnace chamber is at least in part surrounded by a heat insulated casing, and wherein the furnace chamber includes a load compartment configured to hold at least one article to be treated, wherein the load compartment is arranged so as to allow for a flow of pressure medium through the load compartment; and at least two flow generators arranged for generating a flow of pressure medium through the load compartment, wherein a flow of pressure medium into the load compartment is generated by transporting pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion of the pressure vessel and injecting the pressure medium into the load compartment by way of a transport pipe arranged in a via hole of the bottom insulating portion; wherein the at least two flow generators comprise a first flow generator and a second flow generator, wherein the second flow generator comprises a primary ejector arranged below the bottom insulating portion, and a secondary ejector, wherein the secondary ejector is arranged in relation to the primary ejector so as to receive the flow of pressure medium generated by the primary ejector and generate a flow of pressure medium into the load compartment, wherein the secondary ejector is arranged below and through the bottom insulating portion, and wherein the secondary ejector has at least one outlet, close to the first flow generator and upstream or downstream the first flow generator, by which the flow of pressure medium is injected into the load compartment so that an overpressure arises at the at least one outlet.