GB907476A - Improvements in or relating to fluid-flow-controlling valves - Google Patents
Improvements in or relating to fluid-flow-controlling valvesInfo
- Publication number
- GB907476A GB907476A GB1941259A GB1941259A GB907476A GB 907476 A GB907476 A GB 907476A GB 1941259 A GB1941259 A GB 1941259A GB 1941259 A GB1941259 A GB 1941259A GB 907476 A GB907476 A GB 907476A
- Authority
- GB
- United Kingdom
- Prior art keywords
- butterfly
- valve
- rod
- bell
- crank
- 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
Abstract
907,476. Valves. COCKBURNS Ltd. Sept. 6, 1960 [June 6, 1959], No. 19412/59. Class 135. In a butterfly valve of the kind in which the plane of the butterfly makes an acute angle with the axis of a shaft on which it is mounted, and in which sealing between the butterfly and its seating is effected by an inflatable sealing member, an operating means for the valve is arranged automatically to inflate and deflate the sealing member as the butterfly is moved towards or away from the closed position. The shaft 3 of the butterfly 1 is operated through a bell-crank 7 movable between stops 8, 26 by an operating rod 5 which has a spring connection 10 with the bell-crank. After the bell-crank 7 has moved against stop 8 to close the valve, further movement, of rod 5, enables an extension of this rod to move a lever 14, one end 16 of which acts through a spring 24 on a rod 17 carried by a diaphragm 18. A fluid chamber 21 enclosed by this diaphragm has an opening 22 connected to conduits 23 on the valve body 2 which communicate with an inflatable sealing ring 4 carried in the bore of the body and cooperating with the butterfly 1 so that this movement of the diaphragm inflates the ring 4. Conversely, on opening the valve, the inflating pressure is relieved. The sealing ring 4 may be corrugated and may be of rubber or a metal such as stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1941259A GB907476A (en) | 1959-06-06 | 1959-06-06 | Improvements in or relating to fluid-flow-controlling valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1941259A GB907476A (en) | 1959-06-06 | 1959-06-06 | Improvements in or relating to fluid-flow-controlling valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB907476A true GB907476A (en) | 1962-10-03 |
Family
ID=10128929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1941259A Expired GB907476A (en) | 1959-06-06 | 1959-06-06 | Improvements in or relating to fluid-flow-controlling valves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB907476A (en) |
-
1959
- 1959-06-06 GB GB1941259A patent/GB907476A/en not_active Expired
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