IT1075825B - Sleeve repair for eroded or worn pipe - has reinforcement pipe section expanded hydraulically or compressed between collars - Google Patents

Sleeve repair for eroded or worn pipe - has reinforcement pipe section expanded hydraulically or compressed between collars

Info

Publication number
IT1075825B
IT1075825B IT2167377A IT2167377A IT1075825B IT 1075825 B IT1075825 B IT 1075825B IT 2167377 A IT2167377 A IT 2167377A IT 2167377 A IT2167377 A IT 2167377A IT 1075825 B IT1075825 B IT 1075825B
Authority
IT
Italy
Prior art keywords
pipe
sleeve
compressed
eroded
collars
Prior art date
Application number
IT2167377A
Other languages
Italian (it)
Original Assignee
Combustion Eng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US05/670,932 external-priority patent/US4069573A/en
Application filed by Combustion Eng filed Critical Combustion Eng
Application granted granted Critical
Publication of IT1075825B publication Critical patent/IT1075825B/en

Links

Abstract

A sleeve consisting of a short length of pipe (10) is inserted in the pipe (12) to cover a section (14) where the pipe is badly eroded. Two sections (16, 18) of the reinforcing sleeve are expanded so that they have an interference fit with the pipe in which they are mounted. Expansion of the pipe sections can be carried out in any one of several ways. In one method a rod with two discs is inserted in the sleeve. Collar seals which face one another, are mounted between the discs. Hydraulic fluid under pressure can be admitted to the space between the discs, which will expand the sleeve. A rubber sleeve could be compressed between two metal rings. The pressure exerted on the rubber sleeve caused the metal sleeve to bulge out.
IT2167377A 1976-03-26 1977-03-25 Sleeve repair for eroded or worn pipe - has reinforcement pipe section expanded hydraulically or compressed between collars IT1075825B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67093476A 1976-03-26 1976-03-26
US05/670,932 US4069573A (en) 1976-03-26 1976-03-26 Method of securing a sleeve within a tube

Publications (1)

Publication Number Publication Date
IT1075825B true IT1075825B (en) 1985-04-22

Family

ID=27100435

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2167377A IT1075825B (en) 1976-03-26 1977-03-25 Sleeve repair for eroded or worn pipe - has reinforcement pipe section expanded hydraulically or compressed between collars

Country Status (1)

Country Link
IT (1) IT1075825B (en)

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