JPS5576278A - Replacement method of valve for gas small-bore pipe - Google Patents
Replacement method of valve for gas small-bore pipeInfo
- Publication number
- JPS5576278A JPS5576278A JP14997578A JP14997578A JPS5576278A JP S5576278 A JPS5576278 A JP S5576278A JP 14997578 A JP14997578 A JP 14997578A JP 14997578 A JP14997578 A JP 14997578A JP S5576278 A JPS5576278 A JP S5576278A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- tube
- small
- bore
- pipe
- 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.)
- Pending
Links
Landscapes
- Pipe Accessories (AREA)
Abstract
PURPOSE: To replace an original valve simply and safely with a small-bore gas pipe not a main gas pipe shut off by means that a tube with an expansive stopper at the end is inserted in a seal fittings and the fittings is screwed onto the original valve of the small-bore pipe.
CONSTITUTION: For replacement of an original valve 2 of a small-bore gas pipe 1, first a stopper 5 is attached at the lower end of a tube 4 and after the tube 4 is inserted in a seal fittings 3, the seal fittings 3 is fixed on an original valve 2. Next with the old valve 2 opened, the tube 4 is plugged into the seal fittings 3, resulting that the stopper 5 is located in a small-bore pipe 1 under the valve 2. Then an N2 gas is fed in the tube 4 to expand the stopper 5 up to a contact with the small- bore pipe 1. After the contact, the seal fittings 3 and the old valve 2 are removed from the tube 4. The seal fittings 3 is assembled with a new valve 2', into which the tube 4 passes. After the new valve 2' is screwed onto the small-bore pipe 1, the seal fittings 3 and tube 4 are off.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14997578A JPS5576278A (en) | 1978-12-06 | 1978-12-06 | Replacement method of valve for gas small-bore pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14997578A JPS5576278A (en) | 1978-12-06 | 1978-12-06 | Replacement method of valve for gas small-bore pipe |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5576278A true JPS5576278A (en) | 1980-06-09 |
Family
ID=15486712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14997578A Pending JPS5576278A (en) | 1978-12-06 | 1978-12-06 | Replacement method of valve for gas small-bore pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5576278A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5157023A (en) * | 1974-11-15 | 1976-05-19 | Hitachi Shipbuilding Eng Co | Ryutaipaipurainno paiputsugitashihoho |
JPS5164618A (en) * | 1974-12-03 | 1976-06-04 | Hitachi Shipbuilding Eng Co |
-
1978
- 1978-12-06 JP JP14997578A patent/JPS5576278A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5157023A (en) * | 1974-11-15 | 1976-05-19 | Hitachi Shipbuilding Eng Co | Ryutaipaipurainno paiputsugitashihoho |
JPS5164618A (en) * | 1974-12-03 | 1976-06-04 | Hitachi Shipbuilding Eng Co |
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