CN100590332C - 用于蝶阀的椭圆形密封表面 - Google Patents

用于蝶阀的椭圆形密封表面 Download PDF

Info

Publication number
CN100590332C
CN100590332C CN03820443A CN03820443A CN100590332C CN 100590332 C CN100590332 C CN 100590332C CN 03820443 A CN03820443 A CN 03820443A CN 03820443 A CN03820443 A CN 03820443A CN 100590332 C CN100590332 C CN 100590332C
Authority
CN
China
Prior art keywords
valve
seal
disc
valve disc
axis
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.)
Expired - Fee Related
Application number
CN03820443A
Other languages
English (en)
Chinese (zh)
Other versions
CN1678852A (zh
Inventor
菲利普·W·埃格尔斯顿
詹姆斯·L·劳恩斯伯里
威尔伯·D·赫琴斯
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.)
Fisher Controls International LLC
Original Assignee
Fisher Controls International LLC
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 Fisher Controls International LLC filed Critical Fisher Controls International LLC
Publication of CN1678852A publication Critical patent/CN1678852A/zh
Application granted granted Critical
Publication of CN100590332C publication Critical patent/CN100590332C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/222Shaping of the valve member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226Shaping or arrangements of the sealing
    • F16K1/2263Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/24Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/02Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209Check valves or pivoted valves
    • F16K27/0218Butterfly valves
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/0318Processes
    • Y10T137/0402Cleaning, repairing, or assembling
    • Y10T137/0491Valve or valve element assembling, disassembling, or replacing
    • Y10T137/0525Butterfly valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Multiple-Way Valves (AREA)
  • Sliding Valves (AREA)
CN03820443A 2002-08-29 2003-07-23 用于蝶阀的椭圆形密封表面 Expired - Fee Related CN100590332C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/230,656 US7080820B2 (en) 1999-11-16 2002-08-29 Elliptical sealing surface for butterfly valve
US10/230,656 2002-08-29

Publications (2)

Publication Number Publication Date
CN1678852A CN1678852A (zh) 2005-10-05
CN100590332C true CN100590332C (zh) 2010-02-17

Family

ID=31976542

Family Applications (1)

Application Number Title Priority Date Filing Date
CN03820443A Expired - Fee Related CN100590332C (zh) 2002-08-29 2003-07-23 用于蝶阀的椭圆形密封表面

Country Status (9)

Country Link
US (4) US7080820B2 (enExample)
EP (1) EP1534980B9 (enExample)
JP (1) JP4637581B2 (enExample)
CN (1) CN100590332C (enExample)
AU (1) AU2003252102A1 (enExample)
BR (1) BR0313435A (enExample)
CA (1) CA2497284C (enExample)
MX (1) MXPA05002216A (enExample)
WO (1) WO2004020881A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103026109A (zh) * 2010-05-14 2013-04-03 布雷国际有限公司 阀组件和阀组件的使用方法

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7080820B2 (en) * 1999-11-16 2006-07-25 Fisher Controls International Llc. Elliptical sealing surface for butterfly valve
JP2004183711A (ja) * 2002-11-29 2004-07-02 Asahi Organic Chem Ind Co Ltd バタフライバルブ用シートリング
DE102005017224A1 (de) * 2005-04-14 2006-10-19 Glatt Systemtechnik Gmbh Dichtsystem für Schließklappen
JP4117339B2 (ja) * 2006-03-14 2008-07-16 株式会社巴技術研究所 バタフライ弁
WO2008149429A1 (ja) * 2007-06-05 2008-12-11 Nbs Co., Ltd. 超低温用バタフライバルブ
FR2922988B1 (fr) 2007-10-31 2012-10-12 Saint Gobain Performance Plast Assemblages de tuyaux
US8348236B2 (en) 2007-10-31 2013-01-08 Saint-Gobain Performance Plastics Corporation Butterfly valve with a rigid seal
FR2922984B1 (fr) * 2007-10-31 2013-09-27 Saint Gobain Performance Plast Vanne ayant un joint rigide
MY163295A (en) * 2008-11-10 2017-09-15 Access Business Group Int Llc Faucet valve system
US8375970B2 (en) * 2008-11-10 2013-02-19 Access Business Group International Llc Valve system
WO2010113006A1 (en) * 2009-03-30 2010-10-07 Saint-Gobain Performance Plastics Pampus Gmbh Seal ring for exhaust gas recirculation system
US8413684B2 (en) 2009-09-16 2013-04-09 Schneider Electric Buildings, Llc Ball valve with anti-rotational pressure plate
JP5355792B2 (ja) * 2010-06-29 2013-11-27 三菱電機株式会社 ステップタイプバルブ
FR2962184B1 (fr) * 2010-06-30 2013-12-27 Valeo Systemes De Controle Moteur Vanne de circulation de fluide
CN102338225A (zh) * 2010-07-23 2012-02-01 浙江东亚阀门有限公司 新型蒸汽喷吹金属硬密封蝶阀
KR101096525B1 (ko) * 2011-04-26 2011-12-20 서광공업 주식회사 저온 및 고온에서 실링성능이 유지되는 버터플라이 밸브
CN102900852A (zh) * 2011-07-25 2013-01-30 孙杰 阀座组件和蝶阀
FR2990739B1 (fr) * 2012-05-15 2016-07-22 Valeo Systemes De Controle Moteur Vanne pour commander la circulation de fluide, a moyen d'obturation rotatif
FR2993930B1 (fr) * 2012-07-26 2017-06-16 Valeo Systemes De Controle Moteur Vanne de controle moteur a fonctionnement ameliore
US8727313B2 (en) * 2012-09-26 2014-05-20 Jdv Control Valves Co., Ltd Tri-eccentric valve with a symmetric drain-proof ring
CN102943885A (zh) * 2012-11-10 2013-02-27 无锡智能自控工程股份有限公司 双向密封弹性密封三偏心密封蝶阀
US9383020B2 (en) 2013-08-21 2016-07-05 Fisher Controls International Llc High temperature seals for use in rotary valves
US9944439B2 (en) * 2014-03-06 2018-04-17 Helen Of Troy Limited Container lid
US9121513B1 (en) * 2014-04-01 2015-09-01 Yi-Ming Fan Triple eccentric valve with symmetric drain-proof ring applied no normal force to valve seat
DE102014110849A1 (de) * 2014-07-31 2016-02-04 Friedrich Boysen Gmbh & Co. Kg Klappeneinrichtung
WO2016056535A1 (ja) * 2014-10-07 2016-04-14 株式会社キッツ バタフライ弁用シートリングとその固定構造並びに偏心型バタフライ弁
DE102014226733A1 (de) 2014-12-19 2016-06-23 Continental Automotive Gmbh Ventilvorrichtung in einem Kraftfahrzeug
US9927034B2 (en) * 2015-08-25 2018-03-27 Mueller International, Llc Valve seat stiffener
JP6634572B2 (ja) * 2016-05-13 2020-01-22 株式会社テージーケー バタフライバルブ
FR3067783B1 (fr) * 2017-06-20 2020-09-04 Ksb Sas Robinet a papillon centre
US10883613B2 (en) 2018-04-27 2021-01-05 Caterpillar Inc. Elliptical ball valve seal
US11448323B2 (en) 2018-04-30 2022-09-20 Fisher Controls International Llc Rotary valve with control element
CA3077216A1 (en) 2019-03-29 2020-09-29 Velan Inc. Butterfly valve and butterfly disc
US11236830B2 (en) * 2019-04-30 2022-02-01 Fisher Controls International Llc Seal glands for butterfly valves
EP4048925A4 (en) * 2019-10-25 2023-07-26 ITT Manufacturing Enterprises, LLC SEGMENTED VALVE WITH SEALING RIB
JP7556683B2 (ja) * 2019-11-15 2024-09-26 株式会社キッツ 偏心型バタフライ弁
US11796066B2 (en) * 2019-11-21 2023-10-24 Itt Manufacturing Enterprises Llc Dual motion shutoff valve
CN110939742B (zh) * 2019-12-13 2025-11-04 贵州鼐衡科技有限公司 一种矢量密封也阀
CA3160523A1 (en) 2019-12-17 2021-06-24 Brian Michael Gresh Pipe isolation device with seal
FR3114368B1 (fr) * 2020-09-24 2022-12-30 Commissariat Energie Atomique Système d’étanchéité métallique pour vanne papillon à triple excentration

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1834988A (en) * 1926-09-27 1931-12-08 William M White Valve
US3642248A (en) * 1969-05-07 1972-02-15 Allen & Co Fof Proprietary Fun Sealing mechanism
US4005848A (en) * 1975-02-11 1977-02-01 Fisher Controls Company, Inc. Bidirectional pressure-assisted valve seal
US4244387A (en) * 1977-11-08 1981-01-13 Charles Winn (Valves) Limited Rotary valve with temperature responsive seal means
US4770393A (en) * 1987-01-02 1988-09-13 Aktiebolaget Somas Ventiler Butterfly valve
US6213141B1 (en) * 1998-12-21 2001-04-10 Philip W. Eggleston Rotary valve apparatus and associated methods
CN2451831Y (zh) * 2000-11-03 2001-10-03 黄云平 金属密封蝶阀
US20020079740A1 (en) * 1998-12-21 2002-06-27 Eggleston Philip W. Rotary valve apparatus and associated methods

Family Cites Families (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398940A1 (fr) * 1977-07-26 1979-02-23 Amri Double joint torique flexible
US3025035A (en) * 1954-02-16 1962-03-13 Swain Frank Edward Valve
US3325142A (en) * 1964-05-13 1967-06-13 New York Air Brake Co Valve with resilient seat and retainer
US3475007A (en) * 1966-08-19 1969-10-28 Pratt Co Henry Skewed seat butterfly valve
US3480254A (en) * 1968-02-12 1969-11-25 Pratt Co Henry Angle seating butterfly valve with skewed disc
US3627261A (en) * 1969-09-17 1971-12-14 Andrews Ind Inc Balanced rotary plate valve and method of making
US3846885A (en) * 1972-04-24 1974-11-12 D Perry Valve with elliptical sealing
SE383402B (sv) * 1973-10-15 1976-03-08 Saab Scania Ab Vridspjellventil
FI54536C (fi) 1975-04-15 1978-12-11 Neles Oy Klaffventil
US4266753A (en) * 1975-10-18 1981-05-12 Kubota, Ltd. Butterfly valve
DE2811482A1 (de) * 1977-03-17 1978-09-21 Keystone Int Drosselklappe und verfahren zum zusammenbau derselben
CA1059494A (en) 1977-04-20 1979-07-31 Richard Liberman Floating seat butterfly valve
JPS5465828A (en) * 1977-11-04 1979-05-26 Kazuo Yasuda Butterfly valve
US4181288A (en) * 1978-04-05 1980-01-01 Simon Bylsma Fluid pressure regulator valve unit for a fluid delivery system
FR2439348A1 (fr) * 1978-10-17 1980-05-16 Gachot Jean Dispositif anti-friction pour arbre de commande de vanne
US4254937A (en) * 1978-11-17 1981-03-10 Aktiebolaget Somas Ventiler Butterfly valve
US4231546A (en) * 1978-12-22 1980-11-04 Fisher Controls Company, Inc. High-temperature bidirectional metal seal
US4289297A (en) 1979-04-20 1981-09-15 Tomoe Technical Research Company Butterfly valve
GB2047387B (en) 1979-04-23 1983-04-20 Somas Ventiler Butterfly valve
US4286769A (en) 1979-09-19 1981-09-01 Aktiebolaget Somas Ventiler Valve seat
FR2473149A1 (fr) * 1980-01-03 1981-07-10 Legris Perfectionnement aux robinets a obturateur lenticulaire ou spherique
US4284264A (en) 1980-01-17 1981-08-18 Aktiebolaget Somas Ventiler Butterfly valves
US4508315A (en) * 1981-05-28 1985-04-02 Edison International Inc. Bidirectional valve seal
US4505290A (en) * 1983-02-03 1985-03-19 Keystone International, Inc. Valve seat assembly and valve
US4744572A (en) * 1983-07-13 1988-05-17 Posi-Seal International, Inc. All-metal, valve sealing mechanism
CA1259782A (en) * 1984-05-23 1989-09-26 Masahiko Yamamoto Butterfly valve
US4575048A (en) * 1984-06-15 1986-03-11 Jamesbury Corporation Insert retainer for a wafer style butterfly valve
US4659064A (en) * 1986-08-01 1987-04-21 Keystone International, Inc. Apparatus for fixing the position of a valve element shaft in a bore
US4711427A (en) * 1986-08-20 1987-12-08 Keystone International, Inc. Apparatus for connecting a valve element to a valve stem
US5152501A (en) * 1987-04-10 1992-10-06 Bray International, Inc. Butterfly valve
US5178364A (en) * 1987-05-20 1993-01-12 Applications Mecaniques Et Robinetterie Industrielle (A.M.R.I.) Sealing liner with incorporated reaction ring, more particularly for a closure means
US4967779A (en) * 1990-04-09 1990-11-06 Keystone International Holdings Corp. Method of installing a valve seat in a valve body
JP2787726B2 (ja) * 1990-05-31 1998-08-20 株式会社エヌビーエス バタフライバルブ
DE4025832C2 (de) * 1990-08-16 1994-04-28 Xomox Int Gmbh Absperr- und Regelklappe
JP2517160Y2 (ja) * 1991-07-31 1996-11-13 積水化学工業株式会社 バタフライバルブ
DE9200144U1 (de) 1992-01-08 1992-04-02 Zimmermann & Jansen GmbH, 5160 Düren Klappenventil
FR2686136B1 (fr) * 1992-01-15 1995-06-30 Alsthom Velan Vanne a joint metallique notamment vanne papillon.
US6029949A (en) * 1995-04-17 2000-02-29 Flowserve Corporation High performance butterfly valve
US5535986A (en) * 1995-06-30 1996-07-16 Fisher Controls International, Inc. Torsionallly loaded fluid seals for rotary valves
JP3108353B2 (ja) * 1995-12-19 2000-11-13 宮入 一弘 バタフライバルブ
AU718191B2 (en) * 1996-04-18 2000-04-06 Sartell Valves, Inc. Bi-directional valve seal mechanism
CA2177026A1 (en) * 1996-05-21 1997-11-22 Adolf Karel Velan Butterfly valve
US6142173A (en) * 1996-07-30 2000-11-07 Spears Manufacturing Company High purity corrosion resistant butterfly valve
US5934647A (en) * 1996-10-23 1999-08-10 Adams Gmbh & Co. Armaturen Kg Metal seal for valve
JP3846821B2 (ja) * 1997-11-17 2006-11-15 株式会社巴技術研究所 偏心弁
JP3261091B2 (ja) * 1998-03-18 2002-02-25 株式会社巴技術研究所 偏心形バタフライ弁
DE19928473A1 (de) * 1999-06-22 2000-12-28 Pierburg Ag Drosselklappenstutzen für Brennkraftmaschinen
US7080820B2 (en) * 1999-11-16 2006-07-25 Fisher Controls International Llc. Elliptical sealing surface for butterfly valve
JP3623708B2 (ja) * 2000-02-02 2005-02-23 株式会社巴技術研究所 バタフライ弁のシートリング
JP2001355744A (ja) * 2000-06-09 2001-12-26 Kubota Corp メタルシートバタフライ弁
JP2004011790A (ja) * 2002-06-07 2004-01-15 Tomoe Tech Res Co バタフライ弁
JP2004225783A (ja) * 2003-01-22 2004-08-12 Nbs:Kk バタフライバルブ

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1834988A (en) * 1926-09-27 1931-12-08 William M White Valve
US3642248A (en) * 1969-05-07 1972-02-15 Allen & Co Fof Proprietary Fun Sealing mechanism
US4005848A (en) * 1975-02-11 1977-02-01 Fisher Controls Company, Inc. Bidirectional pressure-assisted valve seal
US4244387A (en) * 1977-11-08 1981-01-13 Charles Winn (Valves) Limited Rotary valve with temperature responsive seal means
US4770393A (en) * 1987-01-02 1988-09-13 Aktiebolaget Somas Ventiler Butterfly valve
US6213141B1 (en) * 1998-12-21 2001-04-10 Philip W. Eggleston Rotary valve apparatus and associated methods
US20010005007A1 (en) * 1998-12-21 2001-06-28 Eggleston Phillip W. Rotary valve apparatus
US20020079740A1 (en) * 1998-12-21 2002-06-27 Eggleston Philip W. Rotary valve apparatus and associated methods
CN2451831Y (zh) * 2000-11-03 2001-10-03 黄云平 金属密封蝶阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103026109A (zh) * 2010-05-14 2013-04-03 布雷国际有限公司 阀组件和阀组件的使用方法
CN103026109B (zh) * 2010-05-14 2014-09-10 布雷国际有限公司 阀组件和阀组件的使用方法

Also Published As

Publication number Publication date
US7296585B2 (en) 2007-11-20
WO2004020881A1 (en) 2004-03-11
MXPA05002216A (es) 2005-10-18
US7080820B2 (en) 2006-07-25
US20080272324A1 (en) 2008-11-06
EP1534980B9 (en) 2012-06-13
JP4637581B2 (ja) 2011-02-23
CA2497284C (en) 2013-03-05
US20080035874A1 (en) 2008-02-14
EP1534980B1 (en) 2011-08-31
US20030062500A1 (en) 2003-04-03
JP2005537449A (ja) 2005-12-08
CN1678852A (zh) 2005-10-05
US7416164B2 (en) 2008-08-26
AU2003252102A1 (en) 2004-03-19
CA2497284A1 (en) 2004-03-11
US20060214129A1 (en) 2006-09-28
BR0313435A (pt) 2005-07-12
EP1534980A1 (en) 2005-06-01

Similar Documents

Publication Publication Date Title
CN100590332C (zh) 用于蝶阀的椭圆形密封表面
JPS6020860Y2 (ja) 弁密閉装置
US7249751B2 (en) Ball valve with shear bushing and integral bracket for stem blowout protection
EP2118536B1 (en) Tube-end butterfly metering and shutoff valve
EP0774090A2 (en) Valve assembly having improved valve seat
CN212718206U (zh) 一种具有在线检修功能的深冷轴流式止回阀
US20180080566A1 (en) Butterfly Valve With Improved Seat Ring Providing Instant Valve Closing And Uniformly Increasing Sealing
JPH0213192B2 (enExample)
CN214466345U (zh) 一种旋启式止回阀
US4356997A (en) Flow control mechanism for high pressure wells
US6286810B1 (en) Valve with cartridge
US5388806A (en) Valve assembly having improved valve seat
US20220163128A1 (en) Butterfly valve seat and valve seat cavity
US7984892B2 (en) Low friction butterfly ring
CN110939742B (zh) 一种矢量密封也阀
CN112833225A (zh) 一种旋启式止回阀
CN114110185B (zh) 一种变偏心硬密封蝶阀
JPH11270703A (ja) 偏心形バタフライ弁
CN223257549U (zh) 一种三偏心蝶板
CN113280131A (zh) 三偏心全金属蝶阀的装配方法
CN222864181U (zh) 一种稳定的卡套式旋塞阀
US20250257811A1 (en) Stabilized check valve
CN217762108U (zh) 大偏心偏置阀座快关蝶阀
CN214274513U (zh) 一种分体式压环单体
KR102122754B1 (ko) 메인샤프트와 디스크의 이격이 방지되는 버터플라이 밸브

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100217

Termination date: 20200723

CF01 Termination of patent right due to non-payment of annual fee