GB1193426A - Butterfly Valve - Google Patents
Butterfly ValveInfo
- Publication number
- GB1193426A GB1193426A GB3019766A GB3019766A GB1193426A GB 1193426 A GB1193426 A GB 1193426A GB 3019766 A GB3019766 A GB 3019766A GB 3019766 A GB3019766 A GB 3019766A GB 1193426 A GB1193426 A GB 1193426A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve member
- fluid
- flanges
- pivot axis
- disposed
- 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
- F16K1/222—Shaping of the valve member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
1,193,426. Valves. NATIONAL RESEARCH DEVELOPMENT CORP. 6 Sept., 1967 [5 July, 1966], No. 30197/66. Heading F2V. A butterfly valve member for pivotal mounting in a fluid conduit, has opposite surfaces on each of which is disposed a respective flange or projection 42, 43, each of which has a bluff surface facing away from the centre of the valve member, the flanges or projections, in operation at least throughout a substantial range of angular positions of the valve member, modifying the fluid pressure distribution over the said surfaces to reduce the torque in a closing sense which is exerted on the valve member by the fluid. As shown, the flanges are diametrically spaced apart on opposite sides of the pivot axis, and are disposed at the perpihery. Each flange may extend throughout a minor portion only of the periphery. The valve member may be cambered as at 41, 41 to further modify the pressure distribution. The pivot axis may be inclined to the median plane.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3019766A GB1193426A (en) | 1966-07-05 | 1966-07-05 | Butterfly Valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3019766A GB1193426A (en) | 1966-07-05 | 1966-07-05 | Butterfly Valve |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1193426A true GB1193426A (en) | 1970-06-03 |
Family
ID=10303822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3019766A Expired GB1193426A (en) | 1966-07-05 | 1966-07-05 | Butterfly Valve |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1193426A (en) |
-
1966
- 1966-07-05 GB GB3019766A patent/GB1193426A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |