JPS5479091A - Pressure test method by applying tension to pipe through multistage packing - Google Patents
Pressure test method by applying tension to pipe through multistage packingInfo
- 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
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
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) |
-
1977
- 1977-12-05 JP JP14630577A patent/JPS5479091A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5712452B2 (en) | 1982-03-11 |
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