JP2015501408A - バルブ用のシール構造 - Google Patents
バルブ用のシール構造 Download PDFInfo
- Publication number
- JP2015501408A JP2015501408A JP2014539901A JP2014539901A JP2015501408A JP 2015501408 A JP2015501408 A JP 2015501408A JP 2014539901 A JP2014539901 A JP 2014539901A JP 2014539901 A JP2014539901 A JP 2014539901A JP 2015501408 A JP2015501408 A JP 2015501408A
- Authority
- JP
- Japan
- Prior art keywords
- seal
- valve seat
- inner diameter
- outer diameter
- contact surface
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0673—Composite packings
- F16K5/0678—Composite packings in which only one of the components of the composite packing is contacting the plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0402—Cleaning, repairing, or assembling
- Y10T137/0491—Valve or valve element assembling, disassembling, or replacing
- Y10T137/0508—Ball valve or rotary ball valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Sealing Devices (AREA)
- Taps Or Cocks (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Check Valves (AREA)
Abstract
Description
当該シール支持要素が、第1端部において、バルブシートへ向かう軸方向に変位した第2支持当接面に囲まれた環状の第1シール当接部を含み、
当該シール支持要素が、第2端部において、バルブシートから遠ざかる軸方向に変位した第1支持当接面を囲む環状の第2シール当接部を含んでいることを特徴とする。
Claims (9)
- 第1の上流シール(51)および第2の下流シール(52)並びに中間の軸方向に移動可能なシール支持要素(53)を含む双方向の第2バリア(5)を備えた油圧バルブ(1)内のバルブシート構造(4)用の装置であって、
前記シール支持要素(53)が、第1終端において、バルブシート(42)へ向かう軸方向に変位した第2支持当接面(534)に囲まれた環状の第1シール当接部(531)を含み、
前記シール支持要素(53)が、第2終端において、前記バルブシート(42)から遠ざかる軸方向に変位した第1支持当接面(532)を囲む環状の第2シール当接部(533)を含み、
前記第1支持当接面(532)が、前記シール支持要素(53)の内径(IDS)から半径方向外向きに延在し、
前記第2支持当接面(534)が、前記シール支持要素(53)の外径(ODS)から半径方向内向きに延在し、
前記第1支持当接面(532)が、バルブシート保持部(44)内に配置された第1肩部(41)に当接して支持すべく配置され、前記第2支持当接面(534)が、バルブ筺体(2)内に配置された肩部(21)に当接すべく配置されている装置。 - 前記第1シール当接部(531)が、前記第1シール(51)のシール基部(512)と相補的であり、
前記第2シール当接部(533)が、前記第2シール(51)のシール基部(522)と相補的である、請求項1に記載の装置。 - 前記第1シール(51)の前記外径(OD1)が、閉止要素(3)に接するバルブシート(42)の接触面(421)の内径(ID)と少なくとも同じ大きさであり、
前記接触面の前記外径(OD)が、前記第2シール(52)の前記内径(ID2)と少なくとも同じ大きさであり、
前記第1シール(51)の前記内径(ID1)が、前記第2シール(52)の前記内径(ID2)よりも小さく、
前記第2シール(52)の前記外径(OD2)が、前記第1シール(51)の前記外径(ID1)よりも大きい、請求項1に記載の装置。 - 前記シール(51、52)が、シール基部(512、522)から遠ざかる軸方向に突出する2個の逆向きのシールリップ(511、521)を備えている、請求項1に記載の装置。
- 前記内側要素の外周の直径(IDS)が、前記第1シール(51)の前記シール基部(512)の内径に一致し、前記外側要素の外周の直径(ODS)が、前記第2シール(52)の前記シール基部(522)の外径に一致する、請求項1および2に記載の装置。
- 前記シール支持要素(53)が、第1ハットリング(53a)、中間ハットリング(53b)および第2ハットリング(53c)のアセンブリである、請求項1に記載の装置。
- 前記中間ハットリング(53c)および前記第1ハットリング(53a)が、前記第1シール基部(512)の前記内径(IDS)に等しい内径を有し、
前記中間ハットリング(53c)および前記第2ハットリング(53b)が、前記第2シール基部(522)の前記外径(ODS)に等しい外径を有している、請求項6に記載の装置。 - 前記第1シール(51)の前記外径(OD1)に等しい外径を有し、且つ前記バルブシート(42)の前記接触面(421)の前記内径(ID)に等しい内径を有するリング面の面積が、前記第2シール(52)の前記内径(ID2)に等しい内径を有し、且つ前記バルブシート(42)前記の接触面(421)の前記外径(OD)に等しい外径を有するリング面の面積に等しい、請求項1〜7のいずれか1項に記載の装置。
- 前記油圧バルブ(1)が2個の同一バルブシート構造(4、4’)を含んでいる、請求項1に記載の装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20111487A NO332818B1 (no) | 2011-11-01 | 2011-11-01 | Tetningsanordning for ventil |
NO20111487 | 2011-11-01 | ||
PCT/NO2012/050131 WO2013066187A1 (en) | 2011-11-01 | 2012-07-04 | Seal arrangement for valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2015501408A true JP2015501408A (ja) | 2015-01-15 |
JP5723491B2 JP5723491B2 (ja) | 2015-05-27 |
Family
ID=47566156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014539901A Active JP5723491B2 (ja) | 2011-11-01 | 2012-07-04 | バルブ用のシール構造 |
Country Status (9)
Country | Link |
---|---|
US (1) | US9267606B2 (ja) |
EP (1) | EP2773890B1 (ja) |
JP (1) | JP5723491B2 (ja) |
CN (1) | CN104067040B (ja) |
BR (1) | BR112014010344B1 (ja) |
IN (1) | IN2014DN03377A (ja) |
NO (1) | NO332818B1 (ja) |
RU (1) | RU2587168C2 (ja) |
WO (1) | WO2013066187A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021002140A1 (ja) * | 2019-07-04 | 2021-01-07 | Qublock Technology株式会社 | ボールバルブ |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9982789B2 (en) | 2009-12-07 | 2018-05-29 | Cameron International Corporation | Self-relieving ball valve seat |
US20120211690A1 (en) | 2011-02-22 | 2012-08-23 | Innovative Pressure Technologies | Ball Valves and Associated Methods |
US10801622B2 (en) * | 2013-04-18 | 2020-10-13 | Bal Seal Engineering, Llc | Interlocking face seal assemblies and related methods |
CN104089044B (zh) * | 2014-07-15 | 2017-01-11 | 合肥通用机械研究院 | 可微调预紧力及在线拆卸的lng超低温顶装式球阀阀座 |
CN204140929U (zh) * | 2014-08-26 | 2015-02-04 | 庆堂工业股份有限公司 | 新型双活塞效应阀门 |
EP3040588B1 (en) * | 2014-12-31 | 2017-05-03 | Cameron International Corporation | Double piston effect lip seal seating assemblies |
US9765894B2 (en) * | 2015-01-26 | 2017-09-19 | Delavan Inc | Dynamic valve seal having retaining features |
US9885420B2 (en) | 2015-05-07 | 2018-02-06 | Sri Energy, Inc. | Gate valve |
CN105370910B (zh) * | 2015-11-02 | 2019-07-16 | 浙江永盛科技股份有限公司 | 软弹浮动球阀 |
FR3044735B1 (fr) * | 2015-12-08 | 2017-12-08 | Daher Valves | Vanne pour cylindre de stockage uf6 |
US10914387B2 (en) * | 2016-04-20 | 2021-02-09 | Fisher Controls International Llc | Rotary control valve having a clamped valve seat |
WO2017200546A1 (en) * | 2016-05-20 | 2017-11-23 | Fmc Technologies, Inc. | Front loaded seat seal |
IT201600081134A1 (it) * | 2016-08-03 | 2018-02-03 | Enzo Morello | Valvola |
RU175005U1 (ru) * | 2016-12-27 | 2017-11-15 | Фукуяма Ко., Лтд | Составной держатель уплотнения с пружинным стопорным кольцом |
US11174954B2 (en) * | 2017-03-17 | 2021-11-16 | Yamada Manufacturing Co., Ltd. | Control valve |
NO343724B1 (en) * | 2017-06-19 | 2019-05-20 | Sil Valves As | A valve seal device |
CN107781446B (zh) * | 2017-11-28 | 2023-07-18 | 西铁阀门科技有限公司 | 双向压万向自动补偿阀座卡环压板型阀门 |
CN107763241B (zh) * | 2017-11-28 | 2023-09-01 | 西铁阀门科技有限公司 | 双向压万向自动补偿阀座侧阀盖型阀门 |
WO2019145770A1 (en) * | 2017-12-19 | 2019-08-01 | Nuova Dlm Valvo S.R.L. | Valve assembly with a sealing group |
JP6472924B1 (ja) * | 2018-10-17 | 2019-02-20 | 東フロコーポレーション株式会社 | ボールバルブ |
CN109058505A (zh) * | 2018-10-31 | 2018-12-21 | 天津欧通流体控制设备有限公司 | 一种楔式超低温顶装球阀 |
CN109506006A (zh) * | 2018-12-07 | 2019-03-22 | 超达阀门集团股份有限公司 | 一种适用于低温工况的阀座密封机构 |
JP7172749B2 (ja) * | 2019-03-06 | 2022-11-16 | 株式会社デンソー | バルブ装置 |
US11242933B2 (en) | 2019-06-03 | 2022-02-08 | Fisher Controls International Llc | Floating valve seat for a rotary control valve for use in severe service applications |
JP7287245B2 (ja) * | 2019-11-12 | 2023-06-06 | 株式会社デンソー | 制御弁 |
RU201249U1 (ru) * | 2020-08-14 | 2020-12-04 | Общество с ограниченной ответственностью "Торговый Дом АДЛ" | Шаровой кран с регулировкой распределения усилия прижима уплотнений |
US20230304591A1 (en) * | 2022-03-24 | 2023-09-28 | Bayotech, Inc. | In-line medium pressure valve |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4995227A (ja) * | 1973-01-16 | 1974-09-10 | ||
JP2002257246A (ja) * | 2000-12-26 | 2002-09-11 | Kitz Corp | ボールバルブおよび機械装置の組み立て方法 |
US20040178381A1 (en) * | 2003-03-11 | 2004-09-16 | Alagarsamy Sundararajan | Valve with seat assembly |
US20110037010A1 (en) * | 2009-08-12 | 2011-02-17 | Parks Jr Glenn C | Gate valve seat |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3097823A (en) | 1959-10-28 | 1963-07-16 | Kaiser Rudolf | Shutoff cock having a spherical plug |
US3118650A (en) | 1961-02-28 | 1964-01-21 | Sargent Engineering Corp | Ball valve construction |
DE1220216B (de) | 1961-03-15 | 1966-06-30 | Borsig Ag | Hahn mit kugelfoermigem Kueken |
DE1224107B (de) | 1961-05-25 | 1966-09-01 | Borsig Ag | Hahn mit kugelfoermigem Kueken |
US3335999A (en) | 1964-05-20 | 1967-08-15 | Acf Ind Inc | Valve |
US3656711A (en) | 1970-08-17 | 1972-04-18 | Encon Mfg Co | Thermoset plastic ball valve |
US3895776A (en) | 1974-03-26 | 1975-07-22 | Pipeline Equipment Co | Valve with a spherical closure-member |
US3990465A (en) | 1975-07-25 | 1976-11-09 | Cameron Iron Works, Inc. | Lubricated valve |
DE2924308A1 (de) | 1979-06-15 | 1980-12-18 | Klinger Ag | Verfahren und vorrichtung zur montage eines kugelhahns sowie fuer diesen bestimmter dichtring |
US4342444A (en) | 1980-10-14 | 1982-08-03 | Xomox Corporation | Ball valve assembly |
US4319734A (en) | 1981-03-09 | 1982-03-16 | International Telephone And Telegraph Corporation | Valve |
US4519579A (en) * | 1983-02-14 | 1985-05-28 | Fisher Controls, International, Inc. | Cam valve self-centering seat |
US4519412A (en) | 1983-06-01 | 1985-05-28 | Cameron Iron Works, Inc. | Valve and seal therefor |
US4566482A (en) | 1985-06-27 | 1986-01-28 | Stunkard Gerald A | Top entry trunnion ball valve |
US4658847A (en) * | 1985-07-09 | 1987-04-21 | The Fluorocarbon Company | Bimetallic C-ring seal |
DE3741132A1 (de) | 1987-12-04 | 1989-06-15 | Burgmann Dichtungswerk Feodor | Kugelhahn |
US20020185625A1 (en) | 2001-06-08 | 2002-12-12 | Frank Gosling | Leakproof ball valve structure |
US6974121B2 (en) | 2002-03-19 | 2005-12-13 | Fisher Controls International, Inc. | Fluid flow control valve with bi-directional shutoff |
US7032880B2 (en) | 2004-03-22 | 2006-04-25 | Valve Innnovations, L.L.C. | Valve with pressure adaptable seat |
US20060231786A1 (en) * | 2005-04-18 | 2006-10-19 | Fisher Controls International Llc | Fluid flow control valve with composition seal |
US20080179558A1 (en) | 2007-01-29 | 2008-07-31 | Hemiwedge Valve Corporation | Self-adjusting seat for rotary valve |
CN201047442Y (zh) * | 2007-05-25 | 2008-04-16 | 广州机械科学研究院 | Xv形组合密封圈 |
RU2379565C1 (ru) * | 2008-08-21 | 2010-01-20 | Сергей Геннадьевич Павлов | Клапан поворотный запорно-регулирующий |
WO2010045198A1 (en) | 2008-10-13 | 2010-04-22 | Swangelok Company | Valve sealing arrangements and methods |
US8714560B2 (en) * | 2009-04-28 | 2014-05-06 | Fisher Controls International Llc | Bidirectional seal assembly for use with valves |
US20120211690A1 (en) | 2011-02-22 | 2012-08-23 | Innovative Pressure Technologies | Ball Valves and Associated Methods |
-
2011
- 2011-11-01 NO NO20111487A patent/NO332818B1/no unknown
-
2012
- 2012-07-04 RU RU2014120371/06A patent/RU2587168C2/ru active
- 2012-07-04 EP EP12846650.5A patent/EP2773890B1/en active Active
- 2012-07-04 JP JP2014539901A patent/JP5723491B2/ja active Active
- 2012-07-04 CN CN201280065469.2A patent/CN104067040B/zh active Active
- 2012-07-04 WO PCT/NO2012/050131 patent/WO2013066187A1/en active Application Filing
- 2012-07-04 BR BR112014010344-5A patent/BR112014010344B1/pt active IP Right Grant
- 2012-07-04 US US14/000,474 patent/US9267606B2/en active Active
-
2014
- 2014-04-26 IN IN3377DEN2014 patent/IN2014DN03377A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4995227A (ja) * | 1973-01-16 | 1974-09-10 | ||
JP2002257246A (ja) * | 2000-12-26 | 2002-09-11 | Kitz Corp | ボールバルブおよび機械装置の組み立て方法 |
US20040178381A1 (en) * | 2003-03-11 | 2004-09-16 | Alagarsamy Sundararajan | Valve with seat assembly |
US20110037010A1 (en) * | 2009-08-12 | 2011-02-17 | Parks Jr Glenn C | Gate valve seat |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021002140A1 (ja) * | 2019-07-04 | 2021-01-07 | Qublock Technology株式会社 | ボールバルブ |
JP2021011885A (ja) * | 2019-07-04 | 2021-02-04 | Qublock Technology株式会社 | ボールバルブ |
JP7262764B2 (ja) | 2019-07-04 | 2023-04-24 | Qublock Technology株式会社 | ボールバルブ |
Also Published As
Publication number | Publication date |
---|---|
EP2773890A1 (en) | 2014-09-10 |
BR112014010344A2 (pt) | 2017-04-18 |
WO2013066187A1 (en) | 2013-05-10 |
US20140239212A1 (en) | 2014-08-28 |
CN104067040B (zh) | 2017-03-29 |
US9267606B2 (en) | 2016-02-23 |
RU2014120371A (ru) | 2015-12-10 |
IN2014DN03377A (ja) | 2015-06-05 |
JP5723491B2 (ja) | 2015-05-27 |
BR112014010344B1 (pt) | 2021-09-21 |
RU2587168C2 (ru) | 2016-06-20 |
EP2773890B1 (en) | 2019-08-14 |
NO20111487A1 (no) | 2013-01-21 |
CN104067040A (zh) | 2014-09-24 |
EP2773890A4 (en) | 2015-06-24 |
NO332818B1 (no) | 2013-01-21 |
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