JPS5563061A - Sealing mechanism for ball valve - Google Patents

Sealing mechanism for ball valve

Info

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
Application number
JP13715878A
Other languages
Japanese (ja)
Other versions
JPS5825185B2 (en
Inventor
Akifumi Ono
Sadayuki Nakanishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP13715878A priority Critical patent/JPS5825185B2/en
Publication of JPS5563061A publication Critical patent/JPS5563061A/en
Publication of JPS5825185B2 publication Critical patent/JPS5825185B2/en
Expired legal-status Critical Current

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
JP13715878A 1978-11-06 1978-11-06 Ball valve sealing mechanism Expired JPS5825185B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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