Pipeline or Measuring Tube Having at Least One Layer Which Insulates at Least in Certain Regions, and Process for the Production Thereof

A pipeline or a measuring tube, having:

• at least one insulating layer, at least in certain regions;
• and
• a tubular element, which is manufactured in a primary shaping method and which has an otherwise closed structure, has at least one region with an open-pored, cellular structure, wherein:
• the material of said insulating layer, in the applying of said insulating layer, can penetrate into the pores of said open-pored, cellular structure of said tubular element;
• and
• said insulating layer has, on the side to be insulated, a closed, homogeneous structure.

A method for the manufacture of a pipeline or measuring tube, having at least one insulating layer, at least in certain regions, comprsiing the steps of:

• forming a tubular element, which has at least one region with an open-pored, cellular structure and which has an otherwise closed structure, with a primary shaping method;
• and
• in a following primary shaping method, an insulating layer is formed, wherein:
• the material of the insulating layer penetrates into the pores of the open-pored, cellular structure of the tubular element;
• and
• the insulating layer has on the side to be insulated a closed, homogeneous structure.