CN102401142A - Dual-clamp moving valve seat of butterfly valve - Google Patents
Dual-clamp moving valve seat of butterfly valve Download PDFInfo
- Publication number
- CN102401142A CN102401142A CN2011103680431A CN201110368043A CN102401142A CN 102401142 A CN102401142 A CN 102401142A CN 2011103680431 A CN2011103680431 A CN 2011103680431A CN 201110368043 A CN201110368043 A CN 201110368043A CN 102401142 A CN102401142 A CN 102401142A
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- China
- Prior art keywords
- valve seat
- valve
- butterfly valve
- butterfly
- boss
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- 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.)
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Abstract
The invention relates to a dual-clamp moving valve seat of a butterfly valve, which is arranged on a butterfly valve body and is closely contacted with the inner surface of a liquid inlet end of the valve body, wherein a convex boss is arranged circumferentially on the inner surface of the liquid inlet end of the valve; and the valve seat is clamped on the end surfaces of the two sides of the boss. In the dual-clamp moving valve seat, the fussy surfacing procedure in the production process of the traditional butterfly valve is omitted, forging pieces can be used on batch for processing in production, the accuracy of the valve seat is guaranteed by a processing technique, and the valve seat is interchangeable, so that the production cycle is greatly reduced. When the leakage is caused by defects of the sealing surface on the butterfly valve used on site, the butterfly valve can be used by replacing the valve seat, so that the site maintenance period and the corresponding cost are reduced.
Description
Technical field
The present invention relates to butterfly valve to pressing from both sides movable valve seat, belong to the valve seat technical field.
Background technique
Domestic existing reed valve hard sealing structure; It mostly is the corresponding hard alloy metal of built-up welding on valve; This structure has certain narrow limitation; Bead-welding technology traditional in the production process is loaded down with trivial details relatively, defectives such as built-up welding is prone to crack, loosens, pore, and causing does over again handles and the delay of manufacture cycle.As at the scene in the applying working condition, the sealing surface that causes scratches and lets out defectives such as plain, will take apart reparation by whole valve in the repair process, and this process is with the labor manpower and materials.
Summary of the invention
The present invention provides a kind of butterfly valve to pressing from both sides movable valve seat, and purpose is to solve the defective on the hard seal valve seat bead-welding technology of traditional butt welding butterfly valve, need not to weld, and realizes that the valve sealing face structure is replaceable.
The technological scheme of the present invention's employing is for this reason: the present invention is arranged on the butterfly valve body, and its internal surface with the valve body liquid feeding end closely contacts, and valve body liquid feeding end internal surface is circumferentially with the boss of protrusion, and said valve seat is fastened on boss both sides end face.
Said valve seat comprises suspension ring and the movable valve seat that is fastened on the boss two ends respectively, and both connect through fastening piece.
Establish pad between said movable valve seat and the raised head face
Advantage of the present invention is: the present invention has saved the loaded down with trivial details built-up welding program in traditional butterfly valve production process, and can use forging processing aborning in batches, and guaranteeing through processing technology has interchangeability between the valve seat of precision, greatly reduces the manufacture cycle.The leakage that causes the sealing surface defective appears and in the butterfly valve that uses at the scene, can promptly can use through changing valve seat, has reduced field maintenance cycle and corresponding cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an erection drawing of the present invention.
1 is that flange, 2 is that valve body, 3 is that pad, 4 is that suspension ring, 5 are that screw, 6 is that movable valve seat, 7 is that seal ring, 8 is that dish plate pressure ring, 9 is that dish plate, 10 is a valve rod among the figure.
Embodiment
The present invention is arranged on the butterfly valve body 2, and its internal surface with valve body 2 liquid feeding ends closely contacts, and valve body 2 liquid feeding end internal surfaces are circumferentially with the boss of protrusion, and said valve seat is fastened on boss both sides end face.
Said valve seat comprises the suspension ring 4 and movable valve seat 6 that are fastened on the boss two ends respectively, and both connect through fastening piece.
Establish pad 3 between said movable valve seat 6 and the raised head face.
The present invention includes removable movable valve seat 6, movable hoisting ring 4; Movable valve seat 6 through common alloy forged piece material through heat treatment; Reach the needed hardness of corresponding sealing; After shaping, be clipped on the valve body 2 through screw 5 and 4 pairs on valve seat suspension ring, add gasket seal 3 between movable valve seat 6 and the valve body 2 to prevent that folder is connected the gap that occurs to be revealed.
Claims (3)
1. butterfly valve seat is characterized in that, is arranged on the butterfly valve body, and its internal surface with the valve body liquid feeding end closely contacts, and valve body liquid feeding end internal surface is circumferentially with the boss of protrusion, and said valve seat is fastened on boss both sides end face.
2. butterfly valve seat according to claim 1 is characterized in that, said valve seat comprises suspension ring and the movable valve seat that is fastened on the boss two ends respectively, and both connect through fastening piece.
3. butterfly valve seat according to claim 2 is characterized in that, establishes pad between said movable valve seat and the raised head face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103680431A CN102401142A (en) | 2011-11-18 | 2011-11-18 | Dual-clamp moving valve seat of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103680431A CN102401142A (en) | 2011-11-18 | 2011-11-18 | Dual-clamp moving valve seat of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102401142A true CN102401142A (en) | 2012-04-04 |
Family
ID=45883636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103680431A Pending CN102401142A (en) | 2011-11-18 | 2011-11-18 | Dual-clamp moving valve seat of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102401142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114207329A (en) * | 2019-08-01 | 2022-03-18 | 株式会社电装 | Sealing ring and valve device |
-
2011
- 2011-11-18 CN CN2011103680431A patent/CN102401142A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114207329A (en) * | 2019-08-01 | 2022-03-18 | 株式会社电装 | Sealing ring and valve device |
| CN114207329B (en) * | 2019-08-01 | 2024-04-12 | 株式会社电装 | Sealing ring and valve device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |