IT1031133B - Tenuta per l albero di una valvola di ritegno - Google Patents

Tenuta per l albero di una valvola di ritegno

Info

Publication number
IT1031133B
IT1031133B IT19562/75A IT1956275A IT1031133B IT 1031133 B IT1031133 B IT 1031133B IT 19562/75 A IT19562/75 A IT 19562/75A IT 1956275 A IT1956275 A IT 1956275A IT 1031133 B IT1031133 B IT 1031133B
Authority
IT
Italy
Prior art keywords
seal
shaft
check valve
check
valve
Prior art date
Application number
IT19562/75A
Other languages
English (en)
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of IT1031133B publication Critical patent/IT1031133B/it

Links

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
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/02—Arrangements using fluid issuing from valve members or seats
    • 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
    • F16K1/00—Lift 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
    • F16K1/16—Lift 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
    • F16K1/18—Lift 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
    • F16K1/20—Lift 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 arranged externally of valve member
    • F16K1/2007—Lift 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 arranged externally of valve member specially adapted operating means therefor
    • 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
    • F16K1/00—Lift 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
    • F16K1/16—Lift 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
    • F16K1/18—Lift 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
    • F16K1/20—Lift 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 arranged externally of valve member
    • F16K1/2028—Details of bearings for the axis of rotation
    • 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
    • F16K1/00—Lift 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
    • F16K1/16—Lift 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
    • F16K1/18—Lift 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
    • F16K1/20—Lift 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 arranged externally of valve member
    • F16K1/2042—Special features or arrangements of the sealing
    • F16K1/2078—Sealing means for the axis of rotation
    • 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
    • F16K41/00—Spindle sealings
    • 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
    • Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
    • Y10T137/4245—Cleaning or steam sterilizing
    • Y10T137/4252—Reverse fluid flow
    • 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
    • Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
    • Y10T137/4245—Cleaning or steam sterilizing
    • Y10T137/4273—Mechanical cleaning

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Check Valves (AREA)
  • Lift Valve (AREA)
IT19562/75A 1974-01-25 1975-01-24 Tenuta per l albero di una valvola di ritegno IT1031133B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/436,590 US3938541A (en) 1974-01-25 1974-01-25 Shaft seal for a check valve

Publications (1)

Publication Number Publication Date
IT1031133B true IT1031133B (it) 1979-04-30

Family

ID=23733040

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19562/75A IT1031133B (it) 1974-01-25 1975-01-24 Tenuta per l albero di una valvola di ritegno

Country Status (3)

Country Link
US (1) US3938541A (it)
JP (1) JPS551472B2 (it)
IT (1) IT1031133B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132265A (en) * 1978-04-06 1979-01-02 Cameron Iron Works, Inc. Pipe shearing ram assembly for blowout preventer
JPS58153767U (ja) * 1982-04-09 1983-10-14 東亜バルブ株式会社 スウイング型逆止弁
US4589628A (en) * 1982-09-10 1986-05-20 General Signal Corporation Unitary bearing and locator assembly for rotatable valves
US4878676A (en) * 1987-09-18 1989-11-07 Chaldar, Inc. Seal-flushing in centrifugal-pumps, improved methods and apparatuses
CH677820A5 (it) * 1988-12-23 1991-06-28 Asea Brown Boveri
KR100197807B1 (ko) * 1996-02-06 1999-06-15 박상규 매연 재연소장치용 교번 밸브 조립체
JP2009185982A (ja) * 2008-02-08 2009-08-20 Nissan Motor Co Ltd 開閉弁、燃料電池システムおよび燃料電池システムの制御方法
DE102008016727A1 (de) * 2008-04-01 2009-10-15 Pierburg Gmbh Ventil, insbesondere zur Steuerung von Abgasen bei Brennkraftmaschinen
KR101299986B1 (ko) 2010-11-05 2013-08-26 이봉춘 개량된 역지밸브
JP5851920B2 (ja) * 2012-04-16 2016-02-03 三菱日立パワーシステムズ株式会社 弁、及びこれを備えているプラント
JP6107631B2 (ja) * 2013-12-12 2017-04-05 株式会社デンソー バルブ装置
JP6349132B2 (ja) * 2014-04-09 2018-06-27 株式会社タブチ 遮断弁
CN104976393B (zh) * 2014-04-14 2020-03-10 艾默生过程管理调节技术公司 紧急关断阀
EP2949974A1 (en) * 2014-05-29 2015-12-02 Borgwarner Emissions Systems Spain, S.L.U. Butterfly valve
JP6996968B2 (ja) * 2017-12-26 2022-01-17 三菱パワー株式会社 蒸気止め弁、蒸気タービン
IT201800003099A1 (it) * 2018-02-27 2019-08-27 Magneti Marelli Spa Corpo farfallato o attuatore, in particolare per alimentazione di gas ad alta pressione, munito di sfiato
US11953113B2 (en) * 2020-02-14 2024-04-09 Crane Chempharma & Energy Corp. Valve with unobstructed flow path having increased flow coefficient
CN114811122A (zh) * 2022-06-07 2022-07-29 浙江合隆智能设备有限公司 一种蒸箱蒸汽管路用自动排水顺止阀

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833511A (en) * 1954-12-21 1958-05-06 British Ceca Company Ltd Valve mechanisms
US3106220A (en) * 1961-09-13 1963-10-08 Atwood & Morrill Co Inc Check valve, with dashpot
US3254660A (en) * 1963-12-19 1966-06-07 Itt Closure operator for valves
US3669460A (en) * 1971-02-22 1972-06-13 Schrillo Co A screw seal

Also Published As

Publication number Publication date
US3938541A (en) 1976-02-17
JPS50111631A (it) 1975-09-02
JPS551472B2 (it) 1980-01-14

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