JPS5563061A - Sealing mechanism for ball valve - Google Patents
Sealing mechanism for ball valveInfo
- Publication number
- JPS5563061A JPS5563061A JP13715878A JP13715878A JPS5563061A JP S5563061 A JPS5563061 A JP S5563061A JP 13715878 A JP13715878 A JP 13715878A JP 13715878 A JP13715878 A JP 13715878A JP S5563061 A JPS5563061 A JP S5563061A
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- diameter
- tip end
- seal
- holding groove
- 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
- Taps Or Cocks (AREA)
Abstract
PURPOSE: To effectively prevent the escape of a valve seat from a holding groove by such an arrangement that, as for the valve seat, the diameter of a seal point relating to a ball-shaped valve body is set larger than the diameter of a seal point relating to the wall of the valve seat holding groove.
CONSTITUTION: A valve seat 14 is fitted to an annular valve seat holder 3 movable along a fluid-passing hole of a valve housing 1, and a ball-shaped valve body 5 is contacted with the seat 14 to seal a fluid. The outside periphery of the tip end portion of an inner ring 13a of the holder 13 is provided with a single groove 22 L-shaped in cross section and having a slant wall 16. An annular projection 17 is formed on the inside periphery of the tip end portion of an outer ring 13b of the holder 3. In a holding groove surrounded by the groove 22 and the projection 17, there is fitted the valve seat 14 having the same cross-sectional shape as the holding groove. The diameter d1 of a seal point S1 (the corner, on the tip end side, of the internal peripheral surface of the seal 14) is set larger than the diameter d2 of a seal point S2 (the corner opposite to the tip end).
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13715878A JPS5825185B2 (en) | 1978-11-06 | 1978-11-06 | Ball valve sealing mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13715878A JPS5825185B2 (en) | 1978-11-06 | 1978-11-06 | Ball valve sealing mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5563061A true JPS5563061A (en) | 1980-05-12 |
JPS5825185B2 JPS5825185B2 (en) | 1983-05-26 |
Family
ID=15192169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13715878A Expired JPS5825185B2 (en) | 1978-11-06 | 1978-11-06 | Ball valve sealing mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5825185B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0121946A2 (en) * | 1983-04-12 | 1984-10-17 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Seal mechanism in a ball valve |
WO2008113614A1 (en) * | 2007-03-20 | 2008-09-25 | Cesare Bonetti S.P.A. | Ball valve with removable means for retaining the axial seal |
-
1978
- 1978-11-06 JP JP13715878A patent/JPS5825185B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0121946A2 (en) * | 1983-04-12 | 1984-10-17 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Seal mechanism in a ball valve |
WO2008113614A1 (en) * | 2007-03-20 | 2008-09-25 | Cesare Bonetti S.P.A. | Ball valve with removable means for retaining the axial seal |
US7896312B2 (en) | 2007-03-20 | 2011-03-01 | Cesare Bonetti S.P.A. | Ball valve with removable means for retaining the axial seal |
Also Published As
Publication number | Publication date |
---|---|
JPS5825185B2 (en) | 1983-05-26 |
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