CN201599415U - Positive-pressure internal balance stop valve - Google Patents
Positive-pressure internal balance stop valve Download PDFInfo
- Publication number
- CN201599415U CN201599415U CN2010200496396U CN201020049639U CN201599415U CN 201599415 U CN201599415 U CN 201599415U CN 2010200496396 U CN2010200496396 U CN 2010200496396U CN 201020049639 U CN201020049639 U CN 201020049639U CN 201599415 U CN201599415 U CN 201599415U
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- China
- Prior art keywords
- valve
- flap
- plane
- clack
- positive
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a positive-pressure internal balance stop valve, which comprises a valve body, a valve clack, a valve stem, a valve cover, a transmission device, a sealing part and a mounting part. The lower end surface of the valve clack matches with a sealing surface of a valve base on the valve body, and an upper plane of the valve clack is fixedly connected with the valve stem. The positive-pressure internal balance stop valve is mainly characterized in that a balance hole is arranged between the upper plane and a lower plane of the valve clack, a valve clack cavity is formed between the upper plane of the valve clack and the valve cover, and the valve clack cavity is in sealing isolation from an outlet cavity of the valve body when the valve is closed, thereby leading pressure of the upper plane and the lower plane of the valve clack to be balanced. The positive-pressure internal balance stop valve has the advantages of low closing torque, small volume, low cost and the like, and is adaptable to fluid medium pipeline valves in various fields.
Description
Technical field
The utility model relates to a kind of valve, specifically about a kind of stop valve.
Background technique
Stop valve generally comprises valve body, flap, valve rod, valve gap, transmission device and Sealing and assembling set, match with sealing surface of seat on the valve body in the lower end surface of flap, fixedly connected with valve rod in the last plane of flap, under the valve closing state, the upper and lower plane of flap is communicated with the outlet plenum and the snout cavity of valve body respectively.Its major defect is when valve closing, flap need overcome valve body import pressure medium and valve seat is realized sealing, close moment greater than opening moment, and in off position down, interplanar pressure reduction is big up and down for flap, the sealed force moment of transmission device is big, requires the design of transmission device power configuration and stem diameter bigger, and the valve volume is big, cost is high.
Summary of the invention
The purpose of this utility model is the shortcoming that exists at prior art, and the malleation inner equilibrium that a kind of volume is little, cost is low stop valve is provided.
The technological scheme that realizes the utility model purpose comprises valve body, flap, valve rod, valve gap, transmission device and Sealing and assembling set, match with sealing surface of seat on the valve body in the lower end surface of flap, fixedly connected with valve rod in the last plane of flap, mainly be to be shaped on equalizing orifice between the last plane of flap and the lower plane, constitute a flap chamber on the flap between plane and the valve gap, this flap chamber under the valve closing state with valve outlet chamber seal isolation.
The utility model has the advantages that between plane on the flap and lower plane equalizing orifice is set that make flap applanation balance up and down, valve closing moment is little, reduces the valve volume, reduces cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Malleation inner equilibrium stop valve as shown in Figure 1, comprise valve body 1, flap 2, valve rod 4, valve gap 10, transmission device 19 and Sealing and assembling set, matching with sealing surface of seat on the valve body 1 in the lower end surface of flap 2, is fixedlyed connected with valve rod 4 by link 3 in the last plane of flap 2.Be shaped on equalizing orifice between the last plane of flap 2 and the lower plane, constitute a flap chamber on the flap 2 between plane and the valve gap 10, this flap chamber under the valve closing state with valve body 1 outlet plenum seal isolation, be to constitute piston cylinder operator between the cavity wall in flap cavity outer wall and the valve body, in valve body, be provided with stuffing box gland between cavity wall and the flap cavity outer wall, described stuffing box gland is made of at interval filler spacer 5 and lumen filler 6, and press-fit in flap cavity outer wall and valve body between the cavity wall by lumen filler gland 7, lumen filler gland 7 is installed in the valve body 1 by socket head screw 8.Valve gap 10 is installed on the valve body 1 by screw rod 11, nut 12, establishes gasket seal 9 between the two.Be provided with stem packing 13 between valve rod 4 middle parts and the valve body 1, this stem packing 13 is press-fited between valve rod 4 and valve body 1 by filler gland 14 and hold-down grid 15, and hold-down grid 15 is installed on the valve gap 10 by swing bolt 17, hexagon nut 18.Valve rod 4 tops are connected with transmission device 19 by Stem Mut 21, and Stem Mut 21 is installed in the valve gap 10 by bearing 20, bearing gland 22.Transmission device 19 is installed on the valve gap 10 by hex screw 16.
Claims (1)
1. malleation inner equilibrium stop valve, comprise valve body (1), flap (2), valve rod (4), valve gap (10), transmission device (19) and Sealing and assembling set, match with sealing surface of seat on the valve body (1) in the lower end surface of flap (2), fixedlyed connected with valve rod (4) by link (3) in the last plane of flap (2), it is characterized in that being shaped on equalizing orifice between the last plane of flap (2) and the lower plane, flap (2) is gone up formation one flap chamber between plane and the valve gap (10), this flap chamber under the valve closing state with valve body (1) outlet plenum seal isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200496396U CN201599415U (en) | 2010-01-08 | 2010-01-08 | Positive-pressure internal balance stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200496396U CN201599415U (en) | 2010-01-08 | 2010-01-08 | Positive-pressure internal balance stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599415U true CN201599415U (en) | 2010-10-06 |
Family
ID=42810470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200496396U Expired - Fee Related CN201599415U (en) | 2010-01-08 | 2010-01-08 | Positive-pressure internal balance stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599415U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047422A (en) * | 2011-10-03 | 2013-04-17 | 马涅蒂-马瑞利公司 | Low actuating force canister purge valve |
| CN104712783A (en) * | 2013-12-17 | 2015-06-17 | 上海梅山钢铁股份有限公司 | Inner-equilibrium side-valve type high-pressure hand-operated block valve |
| CN108036067A (en) * | 2018-01-24 | 2018-05-15 | 江苏明江阀业有限公司 | Equilibrant force bellows stop valve |
| CN109990125A (en) * | 2017-12-22 | 2019-07-09 | 比尔克特韦尔克有限两合公司 | Valve assembly |
| CN114542726A (en) * | 2022-01-17 | 2022-05-27 | 方正阀门集团股份有限公司 | High-temperature pressure balance type stop valve |
-
2010
- 2010-01-08 CN CN2010200496396U patent/CN201599415U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047422A (en) * | 2011-10-03 | 2013-04-17 | 马涅蒂-马瑞利公司 | Low actuating force canister purge valve |
| CN103047422B (en) * | 2011-10-03 | 2016-05-25 | 马涅蒂-马瑞利公司 | Low actuation force filter tank cleaning valve |
| CN104712783A (en) * | 2013-12-17 | 2015-06-17 | 上海梅山钢铁股份有限公司 | Inner-equilibrium side-valve type high-pressure hand-operated block valve |
| CN109990125A (en) * | 2017-12-22 | 2019-07-09 | 比尔克特韦尔克有限两合公司 | Valve assembly |
| CN109990125B (en) * | 2017-12-22 | 2023-01-06 | 比尔克特韦尔克有限两合公司 | Regulating valve assembly |
| CN108036067A (en) * | 2018-01-24 | 2018-05-15 | 江苏明江阀业有限公司 | Equilibrant force bellows stop valve |
| CN114542726A (en) * | 2022-01-17 | 2022-05-27 | 方正阀门集团股份有限公司 | High-temperature pressure balance type stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20190108 |