Abstract: A retention element for a spacer plane of a pipe bundle is illustrated and described. In order to be able to provide large coherent free faces of the spacer plane with simplified assembly of the spacer plane, it is proposed that two guide elements each for receiving a pipe of the pipe bundle and a spacing element which is arranged between the guide elements be provided and that an opening for the passage of a rod-like support be provided between the guide elements.

Abstract: A register for the indirect heat exchange between a utility fluid containing interfering components and a heat transfer fluid has at least one tube row with at least one flow channel with a small channel width and at least one flow channel with a large channel width. Additionally, in at least one tube row there is provided at least one flow channel with a narrow section defined by a small channel width as well as a wide section defined by a large channel width. The large channel width produces a large flow velocity of the utility fluid and the small channel width produces a small flow velocity of the utility fluid.

Abstract: A retention element for a spacer plane of a pipe bundle is illustrated and described. In order to be able to provide large coherent free faces of the spacer plane with simplified assembly of the spacer plane, it is proposed that two guide elements each for receiving a pipe of the pipe bundle and a spacing element which is arranged between the guide elements be provided and that an opening for the passage of a rod-like support be provided between the guide elements.

Abstract: A register for the indirect heat exchange between a utility fluid containing interfering components and a heat transfer fluid has at least one tube row with at least one flow channel with a small channel width and at least one flow channel with a large channel width. Additionally, in at least one tube row there is provided at least one flow channel with a narrow section defined by a small channel width as well as a wide section defined by a large channel width. The large channel width produces a large flow velocity of the utility fluid and the small channel width produces a small flow velocity of the utility fluid.

Abstract: Disclosed is a centrifugal separator with an inlet channel for a flow containing coarse and fine particles, a first outlet channel for a flow containing predominantly coarse particles, a second outlet channel for a flow containing predominantly fine particles and a separator chamber with at least one separator device, wherein the separator chamber connects the inlet channel to the first outlet channel and the second outlet channel, and wherein the inlet channel, the separator channel and the two outlet channels form a flow path. To improve the degree of efficiency, as a first separator device, one or more separator pockets are arranged in the separator chamber, which project into the flow path. Also disclosed is a corresponding method for the separation of a flow containing coarse and fine particles.

Abstract: In order to mechanically coat relatively long components under temporally and economically optimum conditions, in particular to coat the components continuously, the method is characterised by the following steps: supplying the pipe to be coated into a first processing line in which the pipe is transported axially, preheating the pipe or a portion of the pipe, applying a primer coat, heating the pipe to achieve a polarisation between primer coating and pipe, drying the pipe to completely expel all soluble constituents, feeding the pipe into a second processing line in which the pipe is transported axially, preheating the pipe, applying the coating in a cross-head extruder, heating the pipe in an induction furnace, curing the coated pipe, and cooling the coated pipe.

Abstract: Disclosed is a centrifugal separator with an inlet channel for a flow containing coarse and fine particles, a first outlet channel for a flow containing predominantly coarse particles, a second outlet channel for a flow containing predominantly fine particles and a separator chamber with at least one separator device, wherein the separator chamber connects the inlet channel to the first outlet channel and the second outlet channel, and wherein the inlet channel, the separator channel and the two outlet channels form a flow path. To improve the degree of efficiency, as a first separator device, one or more separator pockets are arranged in the separator chamber, which project into the flow path. Also disclosed is a corresponding method for the separation of a flow containing coarse and fine particles.