GB873136A - Improvements in butterfly valves - Google Patents

Improvements in butterfly valves

Info

Publication number
GB873136A
GB873136A GB2752757A GB2752757A GB873136A GB 873136 A GB873136 A GB 873136A GB 2752757 A GB2752757 A GB 2752757A GB 2752757 A GB2752757 A GB 2752757A GB 873136 A GB873136 A GB 873136A
Authority
GB
United Kingdom
Prior art keywords
valve
disc
seating
ring
spindle
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
Application number
GB2752757A
Inventor
Alexander Wierzbicki
Jozef Jerzy Haftke
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.)
Dewrance and Co Ltd
Original Assignee
Dewrance and 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 Dewrance and Co Ltd filed Critical Dewrance and Co Ltd
Priority to GB2752757A priority Critical patent/GB873136A/en
Publication of GB873136A publication Critical patent/GB873136A/en
Expired legal-status Critical Current

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
    • F16K1/228—Movable sealing bodies

Abstract

873,136. Valves. DEWRANCE & CO. Ltd. Nov. 14, 1958 [Sept. 2, 1957], No. 27527/57. Class 135. A butterfly valve consisting of a disc 2 mounted on a spindle 4 coacts with a seating 12 on a ring 10 which can be moved axially into or away from engagement with the disc 2. The ring 10 is slidable on a tubular part 18 at the inlet of the valve and has welded to it a pair of bellows 22, 40 which are welded at their other ends to the inlet fitting, the chamber 80 enclosed by the bellows being connected through a passage 78 to a valve (not shown) whereby the chamber may be connected to a source of pressure or exhausted to cause the seating ring 10 to be moved relative to the valve disc 2 when the latter is in its closed position. The seating 12 and a corresponding surface 6 on the valve disc are formed of a hard facing material and of conical, spherical or flat formation. A tubular member 85 slightly larger in diameter than the disc 2 is mounted on a member 50 and tends to preserve the stream line nature of the flow when the valve is opened. The rotation of the spindle 4 is limited to a right-angle by co-operation of a quadrant-shaped portion 89 of a fixed plug 87 with a projection 81 at the end of the spindle. The valve housing is fabricated from parts that are welded together to provide fluid-tight joints. In a modification, a seating ring 10 with its associated bellows is arranged on each side of the valve disc and the space between the two seating rings is provided with a connection whereby it may be connected to a fluid-pressure source, an exhausting pump and atmosphere so that when the valve is closed the space may be exhausted to enhance the seal provided between the seating rings and the disc, or may be pressurized to facilitate opening of the valve.
GB2752757A 1957-09-02 1957-09-02 Improvements in butterfly valves Expired GB873136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2752757A GB873136A (en) 1957-09-02 1957-09-02 Improvements in butterfly valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2752757A GB873136A (en) 1957-09-02 1957-09-02 Improvements in butterfly valves

Publications (1)

Publication Number Publication Date
GB873136A true GB873136A (en) 1961-07-19

Family

ID=10261043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2752757A Expired GB873136A (en) 1957-09-02 1957-09-02 Improvements in butterfly valves

Country Status (1)

Country Link
GB (1) GB873136A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7287580B2 (en) 2002-01-03 2007-10-30 Pax Scientific, Inc. Heat exchanger
US7416385B2 (en) 2004-01-30 2008-08-26 Pax Streamline, Inc. Housing for a centrifugal fan, pump, or turbine
US7488151B2 (en) 2004-01-30 2009-02-10 Pax Streamline, Inc. Vortical flow rotor
US7862302B2 (en) 2003-11-04 2011-01-04 Pax Scientific, Inc. Fluid circulation system
CN103016763A (en) * 2012-12-29 2013-04-03 能发伟业铁岭阀门股份有限公司 Dual-seal water inlet butterfly valve with valve body sealing ring provided with guide ring

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7287580B2 (en) 2002-01-03 2007-10-30 Pax Scientific, Inc. Heat exchanger
US7862302B2 (en) 2003-11-04 2011-01-04 Pax Scientific, Inc. Fluid circulation system
US7416385B2 (en) 2004-01-30 2008-08-26 Pax Streamline, Inc. Housing for a centrifugal fan, pump, or turbine
US7488151B2 (en) 2004-01-30 2009-02-10 Pax Streamline, Inc. Vortical flow rotor
US7832984B2 (en) 2004-01-30 2010-11-16 Caitin, Inc. Housing for a centrifugal fan, pump, or turbine
CN103016763A (en) * 2012-12-29 2013-04-03 能发伟业铁岭阀门股份有限公司 Dual-seal water inlet butterfly valve with valve body sealing ring provided with guide ring

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