Measuring Tube for a Flow Measuring Device

Patent metadata

Field	Value
Publication number	US-2015114133-A1
Application number	US-201314396497-A
Country	US
Kind code	A1
Filing date	Mar 19, 2013
Priority date	Apr 26, 2012
Publication date	Apr 30, 2015
Grant date	—

Abstract

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.

First claim

1 - 19 . (canceled)

20 . 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.

21 . The measuring tube as claimed in claim 20 , wherein:
said lining and said sealing lip, especially 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.

22 . The measuring tube as claimed in claim 20 , wherein:
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; and said at least one sealing lip is located in a part of said lining covering said flange.

23 . The measuring tube as claimed in claim 22 , wherein:
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.

24 . The measuring tube as claimed in claim 23 , 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.

25 . The measuring tube as claimed in claim 23 , wherein:
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.

26 . The measuring tube as claimed in claim 23 , wherein:
said flange includes an end face, which is at least partially covered by said lining; and said sealing lip protrudes outwards from said lining on said end face, preferably in the direction of the adjoining pipeline section.

27 . The measuring tube as claimed in claim 22 , wherein:
said at least one sealing lip has an essentially circularly shaped cross section.

28 . The measuring tube as claimed in claim 22 , wherein:
said at least one sealing lip is a component of said lining.

29 . The measuring tube as claimed in claim 23 , wherein:
said sealing lip is composed of the same material as said lining.

30 . The measuring tube as claimed in claim 23 , wherein:
a plurality of sealing lips, especially annular sealing lips, are provided.

31 . The measuring tube as claimed in claim 23 , wherein:
a first sealing lip and a second sealing lip are provided, which are spaced with different separations from the measuring tube axis; and preferably said second sealing lip is spaced farther from the measuring tube axis than said first sealing lip.

32 . The measuring tube as claimed in claim 23 , wherein:
the maximum diameter of said first sealing lip is greater than the maximum diameter of said second sealing lip.

33 . The measuring tube as claimed in claim 32 , wherein:
said sealing lips form annular corrugations on said lining covering the end face of said flange.

34 . The measuring tube as claimed in claim 33 , wherein:
said flange includes on the end face at least one cavity, which is at least partially covered and/or filled by said lining.

35 . The measuring tube as claimed in claim 34 , 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.

36 . A magneto inductive, flow measuring device having a measuring tube as claimed in claim 20 .

37 . A sealing ring free, flange connection between a measuring tube as claimed in claim 20 and an adjoining pipeline section.

38 . 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; and applying a sealing action between the measuring tube and an adjoining pipeline.

Assignees

• Flowtec Ag

Inventors

• Kerrom Roger
• Tschudin Beat
• Hess Raphael

Classifications

• F16L9/02

  of metal (F16L9/16 - F16L9/22 take precedence) · CPC title

• F16L23/16

  characterised by the sealing means · CPC title

• G01F1/58 Primary

  by electromagnetic flowmeters · CPC title

• G01F1/586

  constructions of coils, magnetic circuits, accessories therefor (G01F1/582 takes precedence; magnet; inductances; transformers; selection of materials for their magnetic properties per se H01F) · CPC title

• G01F15/18

  Supports or connecting means for meters · CPC title