JPS57195988A - Method of extracting branch pipe in hot tap method - Google Patents

Method of extracting branch pipe in hot tap method

Info

Publication number
JPS57195988A
JPS57195988A JP8077581A JP8077581A JPS57195988A JP S57195988 A JPS57195988 A JP S57195988A JP 8077581 A JP8077581 A JP 8077581A JP 8077581 A JP8077581 A JP 8077581A JP S57195988 A JPS57195988 A JP S57195988A
Authority
JP
Japan
Prior art keywords
branch pipe
hot tap
extracting branch
extracting
tap method
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP8077581A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6258434B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Minoru Nemoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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
Application filed by Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Priority to JP8077581A priority Critical patent/JPS57195988A/ja
Publication of JPS57195988A publication Critical patent/JPS57195988A/ja
Publication of JPS6258434B2 publication Critical patent/JPS6258434B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Branch Pipes, Bends, And The Like (AREA)
JP8077581A 1981-05-29 1981-05-29 Method of extracting branch pipe in hot tap method Granted JPS57195988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8077581A JPS57195988A (en) 1981-05-29 1981-05-29 Method of extracting branch pipe in hot tap method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8077581A JPS57195988A (en) 1981-05-29 1981-05-29 Method of extracting branch pipe in hot tap method

Publications (2)

Publication Number Publication Date
JPS57195988A true JPS57195988A (en) 1982-12-01
JPS6258434B2 JPS6258434B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-12-05

Family

ID=13727799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8077581A Granted JPS57195988A (en) 1981-05-29 1981-05-29 Method of extracting branch pipe in hot tap method

Country Status (1)

Country Link
JP (1) JPS57195988A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172094U (ja) * 1984-04-25 1985-11-14 日本鋼管株式会社 フイツテイング取付治具
JP2010286115A (ja) * 2009-05-13 2010-12-24 Nippon Steel Pipeline Co Ltd ノーブロー工法用フィッティング及びその製造方法並びに既設本管の分岐構造および分岐方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722490A (en) * 1980-07-12 1982-02-05 Osaka Gas Co Ltd Nonstop flow type device for constructing conduit pipe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5722490A (en) * 1980-07-12 1982-02-05 Osaka Gas Co Ltd Nonstop flow type device for constructing conduit pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60172094U (ja) * 1984-04-25 1985-11-14 日本鋼管株式会社 フイツテイング取付治具
JP2010286115A (ja) * 2009-05-13 2010-12-24 Nippon Steel Pipeline Co Ltd ノーブロー工法用フィッティング及びその製造方法並びに既設本管の分岐構造および分岐方法

Also Published As

Publication number Publication date
JPS6258434B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-12-05

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