IT1075825B - Sleeve repair for eroded or worn pipe - has reinforcement pipe section expanded hydraulically or compressed between collars
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Sleeve repair for eroded or worn pipe - has reinforcement pipe section expanded hydraulically or compressed between collars
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Publication number
IT1075825B
IT1075825BIT2167377AIT2167377AIT1075825BIT 1075825 BIT1075825 BIT 1075825BIT 2167377 AIT2167377 AIT 2167377AIT 2167377 AIT2167377 AIT 2167377AIT 1075825 BIT1075825 BIT 1075825B
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Priority claimed from US05/670,932external-prioritypatent/US4069573A/en
Application filed by Combustion EngfiledCriticalCombustion Eng
Application grantedgrantedCritical
Publication of IT1075825BpublicationCriticalpatent/IT1075825B/en
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.
IT2167377A1976-03-261977-03-25Sleeve repair for eroded or worn pipe - has reinforcement pipe section expanded hydraulically or compressed between collars
IT1075825B
(en)