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DEVICE FOR WORK IMPLEMENTATION WITHOUT STOPPING FLOW, AND METHOD FOR WORK IMPLEMENTATION WITHOUT STOPPING FLOW
DEVICE FOR WORK IMPLEMENTATION WITHOUT STOPPING FLOW, AND METHOD FOR WORK IMPLEMENTATION WITHOUT STOPPING FLOW
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机译:在不中断的情况下实现工作的装置和方法在不中断的情况下实现工作的方法
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摘要
An apparatus including: a sealing case having a branch holeformed in a first separate case and extending in the radial direction of anexisting pipe; and a rubber packing for sealing a gap between the sealingcase and the existing pipe, wherein: the first separate case has a flangefor attachment and removal of a boring machine; the sealing casereciprocates in a pipe axis direction; the rubber packing forms: a firstsealed area surrounding a portion of the sealing case for shutting thebranch hole; a second sealed area being adjacent to, sealed against,displaced from the first sealed area in the pipe axis direction, and sized soas to be able to shut the opening bored by a cutter; and a tolerance space,into which a second seal ring escapes, is formed between a packingattachment groove and the second seal ring.
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