GB873136A - Improvements in butterfly valves - Google Patents
Improvements in butterfly valvesInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
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.
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)
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 |
-
1957
- 1957-09-02 GB GB2752757A patent/GB873136A/en not_active Expired
Cited By (6)
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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