JPS5540354A - Seal ring for ball valve - Google Patents
Seal ring for ball valveInfo
- Publication number
- JPS5540354A JPS5540354A JP11357078A JP11357078A JPS5540354A JP S5540354 A JPS5540354 A JP S5540354A JP 11357078 A JP11357078 A JP 11357078A JP 11357078 A JP11357078 A JP 11357078A JP S5540354 A JPS5540354 A JP S5540354A
- Authority
- JP
- Japan
- Prior art keywords
- frictional
- ring
- seal
- seal ring
- contact
- 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
- Taps Or Cocks (AREA)
Abstract
PURPOSE: To reduce waer of the seal case and permit smooth operation of the seal ring by providing frictional rings on the surface of a seal ring in contact with a seal case.
CONSTITUTION: Frictional rings 21 made on a soft non-ferrous material having a low coefficient of friction, for instance gun metal, are secured to a seal ring 20 at opposite edges thereof. A frictional member 31 made of a hard material such as stainless steel is secured by means of fusion to the inner surface of a seal case 5 in contact with packings 23. When the seal surface C is brought into close contact with the movement of the seal ring 20 caused by applying water pressure P2 for cutting water flow W, smooth relative movement of the frictional member 31 and frictional ring 21 is caused. Even when the corner of the frictional ring 21 touches the frictional member 31, the corner is worn only slightly. Gaps G2 and G3 are smaller than gaps G1, G4 and G5, so that the opposite edges of the frictional ring 21 is always in contact with the frictional member 31.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11357078A JPS5540354A (en) | 1978-09-18 | 1978-09-18 | Seal ring for ball valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11357078A JPS5540354A (en) | 1978-09-18 | 1978-09-18 | Seal ring for ball valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5540354A true JPS5540354A (en) | 1980-03-21 |
Family
ID=14615587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11357078A Pending JPS5540354A (en) | 1978-09-18 | 1978-09-18 | Seal ring for ball valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5540354A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58102632A (en) * | 1981-12-16 | 1983-06-18 | Toshiba Seiki Kk | Manufacture of intermittent driving apparatus |
-
1978
- 1978-09-18 JP JP11357078A patent/JPS5540354A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58102632A (en) * | 1981-12-16 | 1983-06-18 | Toshiba Seiki Kk | Manufacture of intermittent driving apparatus |
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