JPS5479091A - Pressure test method by applying tension to pipe through multistage packing - Google Patents

Pressure test method by applying tension to pipe through multistage packing

Info

Publication number
JPS5479091A
JPS5479091A JP14630577A JP14630577A JPS5479091A JP S5479091 A JPS5479091 A JP S5479091A JP 14630577 A JP14630577 A JP 14630577A JP 14630577 A JP14630577 A JP 14630577A JP S5479091 A JPS5479091 A JP S5479091A
Authority
JP
Japan
Prior art keywords
pipe
pressure
test
packings
sealed
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
JP14630577A
Other languages
Japanese (ja)
Other versions
JPS5712452B2 (en
Inventor
Yuzo Yoshikawa
Hiroshi Tamaki
Fujio Okubo
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.)
Nippon Steel Corp
Yamamoto Suiatsu Kogyosho Co Ltd
Original Assignee
Nippon Steel Corp
Yamamoto Suiatsu Kogyosho Co 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 Steel Corp, Yamamoto Suiatsu Kogyosho Co Ltd filed Critical Nippon Steel Corp
Priority to JP14630577A priority Critical patent/JPS5479091A/en
Publication of JPS5479091A publication Critical patent/JPS5479091A/en
Publication of JPS5712452B2 publication Critical patent/JPS5712452B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

PURPOSE: To eliminate deformation or the like of the pipe end, by sealing a test pipe comprising more than two packings in the head body, and keeping the pipe from slipping with a frictional force applied by a packing sealed by other pressure.
CONSTITUTION: A test pipe 8 is sealed by packings 25 to 27 built in a head body 3, and is also sealed with a other liquid pressure from a pressure supplying port 40. When a pressure builds up in the pipe 8, as the reaction force thereto, a main ram 7 attempts to retreat by the compressed amount of the fluid in a main cylinder 6. Then, the body 3 attempts to move due to the area difference between the outside diameter of pipe 8 and outside diameter of correction ram 2, but the body 3 and pipe 8 do not move relatively because the pipe 8 is held by packings 25 to 27. At the time of pressure test, since the pipe 8 is held so as not to slide in the axial direction, the pipe end is not hit against the body 3, so that the pressure test may be performed without causing damage on the pipe end and body 3.
COPYRIGHT: (C)1979,JPO&Japio
JP14630577A 1977-12-05 1977-12-05 Pressure test method by applying tension to pipe through multistage packing Granted JPS5479091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14630577A JPS5479091A (en) 1977-12-05 1977-12-05 Pressure test method by applying tension to pipe through multistage packing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14630577A JPS5479091A (en) 1977-12-05 1977-12-05 Pressure test method by applying tension to pipe through multistage packing

Publications (2)

Publication Number Publication Date
JPS5479091A true JPS5479091A (en) 1979-06-23
JPS5712452B2 JPS5712452B2 (en) 1982-03-11

Family

ID=15404664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14630577A Granted JPS5479091A (en) 1977-12-05 1977-12-05 Pressure test method by applying tension to pipe through multistage packing

Country Status (1)

Country Link
JP (1) JPS5479091A (en)

Also Published As

Publication number Publication date
JPS5712452B2 (en) 1982-03-11

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