A measuring tube for a flow measuring device, wherein the measuring tube has a lining, wherein the lining has at least one sealing lip, which sealing lip serves to provide a sealing action between the measuring tube and a pipeline section adjoining the measuring tube in the installed state.
대표청구항▼
1. A measuring tube for a flow measuring device, the measuring tube has a lining, wherein: said lining has at least one sealing lip, which serves to provide a sealing action between the measuring tube and a pipeline section adjoining the measuring tube in the installed state,the measuring tube inclu
1. A measuring tube for a flow measuring device, the measuring tube has a lining, wherein: said lining has at least one sealing lip, which serves to provide a sealing action between the measuring tube and a pipeline section adjoining the measuring tube in the installed state,the measuring tube includes at least one flange, which serves for connection of the measuring tube with the adjoining pipeline section;said lining covers at least a part of said flange;said at least one sealing lip is located in a part of said lining covering said flange;said flange includes a first area, which is free of said lining and which serves as a stop for a counterflange of the adjoining pipeline section;said flange includes an end face, which is at least partially covered by said lining; andsaid sealing lip protrudes outwards from said lining on said end face, in the direction of the adjoining pipeline section. 2. The measuring tube as claimed in claim 1, wherein: said lining and said sealing lip, when the measuring tube is connected with the adjoining pipeline section, serve to produce the sealing action essentially by a bearing pressure against the adjoining pipeline section. 3. The measuring tube as claimed in claim 1, wherein: said flange includes a second area, which is connected with said stop preferably via a shoulder, covered by said lining and offset from said first area preferably in the direction of the measuring tube axis. 4. The measuring tube as claimed in claim 3, wherein: at least one of said lining and[/or] said sealing lip protrudes at least partially above a height predetermined by said first area and given preferably by the intersection between said first area and the measuring tube axis. 5. The measuring tube as claimed in claim 1, wherein: said at least one sealing lip has an essentially circularly shaped cross section. 6. The measuring tube as claimed in claim 1, wherein: said at least one sealing lip is a component of said lining. 7. The measuring tube as claimed in claim 1, wherein: said sealing lip is composed of the same material as said lining. 8. The measuring tube as claimed in claim 1, wherein: a plurality of sealing lips, especially annular sealing lips, are provided. 9. The measuring tube as claimed in claim 1, wherein: a first sealing lip and a second sealing lip are provided, which are spaced with different separations from the measuring tube axis; andpreferably said second sealing lip is spaced farther from the measuring tube axis than said first sealing lip. 10. The measuring tube as claimed in claim 1, wherein: the maximum diameter of said first sealing lip is greater than the maximum diameter of said second sealing lip. 11. The measuring tube as claimed in claim 10, wherein: said sealing lips form annular corrugations on said lining covering the end face of said flange. 12. The measuring tube as claimed in claim 11, wherein: said flange includes on the end face at least one cavity, which is at least partially covered and/or filled by said lining. 13. The measuring tube as claimed in claim 12, wherein: said lining includes at the height of said cavity in said flange a corresponding cavity, for example, a cavity on the side of said lining facing the adjoining pipeline section, respectively on the side of said lining facing the flange of the adjoining pipeline section. 14. A magneto inductive, flow measuring device having a measuring tube as claimed in claim 1. 15. A sealing ring free, flange connection between a measuring tube as claimed in claim 1 and an adjoining pipeline section. 16. A method for manufacturing a measuring tube for a flow measuring device, comprising the steps of: lining the measuring tube with a lining, which has at least one sealing lip; andapplying a sealing action between the measuring tube and an adjoining pipeline.
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