Abstract: A coating process for the interior of a pipework system, which includes a subsystem having a first part-system and a second part-system coupled to the first part-system, wherein the part-system can be pressurized by a pressure difference via a first connection of the first part-system and via a second connection of the second part-system, and wherein the first connection of the second part-system is identical to the second connection of the first part-system and then the first connection of the second part-system is pressurized after the coating material leaves the second connection of the first part-system so that the first part-system and the second part-system is consecutively fed with the coating material.

Abstract: A coating process for the interior of a pipework system, which includes a subsystem having a first part-system and a second part-system coupled to the first part-system, wherein the part-system can be pressurized by a pressure difference via a first connection of the first part-system and via a second connection of the second part-system, and wherein the first connection of the second part-system is identical to the second connection of the first part-system. In a second process step the first part-system is pressurized in such a way that a fluid-flow of the coating material is established through the first part-system and then the first connection of the second part-system is pressurized after the coating material leaves the second connection of the first part-system so that the first part-system and the second part-system is consecutively fed with the coating material.

Abstract: The invention relates to a working process for the treatment of an interior of a pipework system (1), which pipework system (1) includes a part-system (2, 21, 22) between a first connection (3, 31, 32) and a second connection (4, 41, 42), wherein the working process includes the following working steps: Providing a first working fluid (5, 51, 52, 53) being under an over-pressure (P+, P+1, P+2, P+3) with respect to an ambient pressure (P0). Providing a second working fluid (6, 61, 62, 63) being under a low-pressure (P?, P?1, P?2, P?3) with respect to the ambient pressure (P0).

Abstract: The invention relates to a coating process for the coating of an interior of a pipework system (1) with a coating material (541), preferably for the coating with an epoxy resin (541), which pipework system (1) includes a part-system (2, 21, 22) between a first connection (3, 31, 32) and a second connection (4, 41, 42), and the coating process includes in a first process step the following steps in an arbitrary order: providing a first pressure fluid (54), in particular air (54), which first pressure fluid (54) is under a coating over-pressure (P+4) with respect to an ambient pressure (P0). Providing a second pressure fluid (64), in particular air (64), which second pressure fluid (64) is under a coating low-pressure (P?4) with respect to the ambient pressure (P0). Providing the coating material (541) in a storage tank (13), in particular in a storage hose (13). Connecting a pressure outlet (131) of the storage tank (13) with the first connection (31) of the first part-system (21).