GB1231916A - - Google Patents
Info
- Publication number
- GB1231916A GB1231916A GB1231916DA GB1231916A GB 1231916 A GB1231916 A GB 1231916A GB 1231916D A GB1231916D A GB 1231916DA GB 1231916 A GB1231916 A GB 1231916A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flanges
- seat
- fitted
- bore
- valve
- 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
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
- F16K1/2265—Shaping or arrangements of the sealing the sealing being arranged on the valve seat with a channel- or U-shaped seal covering a central body portion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
1,231,916. Valves. HALE CO. 10 Feb., 1969, No. 7124/69. Heading F2V. A butterfly valve comprises a body 12, for fitting between pipe flanges 50, with an axial bore 14 and a resilient elastomeric seat 34 encompassing a rigid reinforcing member 32, e.g. of hard rubber, plastics or metal, the seat having arcuate end portions 42, to be compressed when the valve is fitted to the flanges 50, and an inner bore formed with a reduced diameter portion 36, to be engaged by a valve disc 18, with an increased diameter valley portion on each side. The reinforcing ring 32 has converging ends 46, to force the resilient seat into sealing engagement with the bore 14 when the flanges 50 are fitted, which in Fig. 7, not shown, are curved.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB712469 | 1969-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1231916A true GB1231916A (en) | 1971-05-12 |
Family
ID=9827085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1231916D Expired GB1231916A (en) | 1969-02-10 | 1969-02-10 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1231916A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2117787A1 (en) * | 1971-04-13 | 1973-01-25 | Josef Nemetz | FLAP SHUT-OFF VALVE |
DE2608161A1 (en) * | 1976-02-27 | 1977-09-01 | Tomoe Tech Res Co | Butterfly valve with O-ring stem seals - has circular rim of valve body dovetailed with plastics valve seat ring |
CN103363132A (en) * | 2013-07-23 | 2013-10-23 | 夏许超 | Processing method for synthetic rubber gum cover of butterfly valve |
GB2530094A (en) * | 2014-09-15 | 2016-03-16 | Intelligent Energy Ltd | Valve assembly |
-
1969
- 1969-02-10 GB GB1231916D patent/GB1231916A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2117787A1 (en) * | 1971-04-13 | 1973-01-25 | Josef Nemetz | FLAP SHUT-OFF VALVE |
DE2608161A1 (en) * | 1976-02-27 | 1977-09-01 | Tomoe Tech Res Co | Butterfly valve with O-ring stem seals - has circular rim of valve body dovetailed with plastics valve seat ring |
CN103363132A (en) * | 2013-07-23 | 2013-10-23 | 夏许超 | Processing method for synthetic rubber gum cover of butterfly valve |
GB2530094A (en) * | 2014-09-15 | 2016-03-16 | Intelligent Energy Ltd | Valve assembly |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PLNP | Patent lapsed through nonpayment of renewal fees |