WO2008149429A1 - Butterfly valve for extreme cold - Google Patents

Butterfly valve for extreme cold Download PDF

Info

Publication number
WO2008149429A1
WO2008149429A1 PCT/JP2007/061379 JP2007061379W WO2008149429A1 WO 2008149429 A1 WO2008149429 A1 WO 2008149429A1 JP 2007061379 W JP2007061379 W JP 2007061379W WO 2008149429 A1 WO2008149429 A1 WO 2008149429A1
Authority
WO
WIPO (PCT)
Prior art keywords
extreme cold
ring
sheet
butterfly valve
valve body
Prior art date
Application number
PCT/JP2007/061379
Other languages
French (fr)
Japanese (ja)
Inventor
Kazuhiro Miyairi
Isamu Tashiro
Original Assignee
Nbs Co., 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 Nbs Co., Ltd. filed Critical Nbs Co., Ltd.
Priority to PCT/JP2007/061379 priority Critical patent/WO2008149429A1/en
Publication of WO2008149429A1 publication Critical patent/WO2008149429A1/en

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
    • 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
    • F16K1/22—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 crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat

Abstract

A butterfly valve that even in use at extreme cold, retains satisfactory hermetic sealing capability, ensuring very low abrasion of valve body (13) and sheet ring (15), and that realizes rotation of the valve body (13) with minimum necessary driving power. There is provided a structure such that resin-made sheet ring (15) is provided with protrudent portions including protrusion (25) and locking portion (28), these protrudent portions brought into contact with metal backup ring (16) and sheet retaining ring (12) to thereby block any resin shrinkage attributed to extreme cold. Accordingly, resins, such as high-molecular-weight polyethylene, not hardening in extreme cold can be utilized in the sheet ring (15).
PCT/JP2007/061379 2007-06-05 2007-06-05 Butterfly valve for extreme cold WO2008149429A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/061379 WO2008149429A1 (en) 2007-06-05 2007-06-05 Butterfly valve for extreme cold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/061379 WO2008149429A1 (en) 2007-06-05 2007-06-05 Butterfly valve for extreme cold

Publications (1)

Publication Number Publication Date
WO2008149429A1 true WO2008149429A1 (en) 2008-12-11

Family

ID=40093265

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/061379 WO2008149429A1 (en) 2007-06-05 2007-06-05 Butterfly valve for extreme cold

Country Status (1)

Country Link
WO (1) WO2008149429A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104964044A (en) * 2015-06-30 2015-10-07 苏州纽威阀门股份有限公司 Double eccentric butterfly valve
CN113983176A (en) * 2021-10-21 2022-01-28 上海沪东造船阀门有限公司 Maritime work ultralow temperature double-valve-seat double-seal butterfly valve
CN114321404A (en) * 2021-12-25 2022-04-12 上海阀门厂股份有限公司 Two-way seal structure of butterfly valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01132869U (en) * 1979-01-02 1989-09-08
JPH0510457A (en) * 1991-02-05 1993-01-19 N B S:Kk Butterfly valve sealing device
JPH1078144A (en) * 1996-07-31 1998-03-24 Ksb Sa Butterfly valve
JP2005537449A (en) * 2002-08-29 2005-12-08 フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー Elliptical sealing surface for butterfly valves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01132869U (en) * 1979-01-02 1989-09-08
JPH0510457A (en) * 1991-02-05 1993-01-19 N B S:Kk Butterfly valve sealing device
JPH1078144A (en) * 1996-07-31 1998-03-24 Ksb Sa Butterfly valve
JP2005537449A (en) * 2002-08-29 2005-12-08 フィッシャー コントロールズ インターナショナル リミテッド ライアビリティー カンパニー Elliptical sealing surface for butterfly valves

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104964044A (en) * 2015-06-30 2015-10-07 苏州纽威阀门股份有限公司 Double eccentric butterfly valve
CN113983176A (en) * 2021-10-21 2022-01-28 上海沪东造船阀门有限公司 Maritime work ultralow temperature double-valve-seat double-seal butterfly valve
CN114321404A (en) * 2021-12-25 2022-04-12 上海阀门厂股份有限公司 Two-way seal structure of butterfly valve

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