JPS55141339A - Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit - Google Patents
Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fitInfo
- Publication number
- JPS55141339A JPS55141339A JP5012179A JP5012179A JPS55141339A JP S55141339 A JPS55141339 A JP S55141339A JP 5012179 A JP5012179 A JP 5012179A JP 5012179 A JP5012179 A JP 5012179A JP S55141339 A JPS55141339 A JP S55141339A
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- valve
- mounting hole
- box
- screwed
- 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
- Lift Valve (AREA)
- Sliding Valves (AREA)
Abstract
PURPOSE: To achieve the simplification of work and the reduction in the man hour by cooling a valve seat having a desired shrinkage allowance and interference to reduce the smae to the size at which it can be inserted or screwed into a valve seat mounting hole then tightly fitting this valve seat into the mounting hole of the valve box or valve body by causing the expansion restorage of the valve seat.
CONSTITUTION: A valve seat 1 composed of blank of bronze or the like is so worked as to have a desired shrinkage allowance and interference and is so worked as to permit its insertion or screwing into a valve seat mounting hole 4. Next, the valve seat 1 is cooled preferably to about -70°C so that it is shrank to the size at which it can be inserted or screwed into the mounting hole 4. Thence, this valve seat 1 is inserted or screwed into the valve seat mounting hole 4 of the valve box 2 or valve body 3. The valve seat 1 mounted expands as it restores ordinary temperature and the outside diameter of the valve seat restores the original size and therefore the fitting part 1a of the valve seat 1 tightly fits into the mounting hole 4 owing to its desired interference, and the contact part 1b tightly fits to the contact surface 2b of the valve box 2 or the contact surface 3b of the valve body 3.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5012179A JPS55141339A (en) | 1979-04-23 | 1979-04-23 | Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5012179A JPS55141339A (en) | 1979-04-23 | 1979-04-23 | Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55141339A true JPS55141339A (en) | 1980-11-05 |
Family
ID=12850281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5012179A Pending JPS55141339A (en) | 1979-04-23 | 1979-04-23 | Mounting method of valve seat into valve seat mounting hole of valve box or valve body through expansion fit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55141339A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104476104A (en) * | 2014-11-17 | 2015-04-01 | 南通龙源电站阀门有限公司 | Ball valve seat heat sleeve connecting process |
-
1979
- 1979-04-23 JP JP5012179A patent/JPS55141339A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104476104A (en) * | 2014-11-17 | 2015-04-01 | 南通龙源电站阀门有限公司 | Ball valve seat heat sleeve connecting process |
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