CN204553881U - Integral type Y type self-sealing stop valve - Google Patents
Integral type Y type self-sealing stop valve Download PDFInfo
- Publication number
- CN204553881U CN204553881U CN201520206580.XU CN201520206580U CN204553881U CN 204553881 U CN204553881 U CN 204553881U CN 201520206580 U CN201520206580 U CN 201520206580U CN 204553881 U CN204553881 U CN 204553881U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- flap
- stop valve
- stem mut
- 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 - Fee Related
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- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a kind of integral type Y type self-sealing stop valve, be included in the valve rod installed in valve body, valve rod lower end has flap, and its longitudinal section shape of described flap is parabola shaped, and on flap outer surface, built-up welding arranges stellite layer.The utility model flap outer surface adopts parabolic shaped structure, and on sealing surface, built-up welding officials Tai Li alloy-layer, effectively prevent washing away of impurity, and corrosion, sealability is superior, extends the working life of stop valve.
Description
Technical field
The utility model relates to a kind of integral type Y type self-sealing stop valve.
Background technique
Y type sealed stop valve is applicable to hydrocracking unit, and under high-temperature and high-pressure hydrogenation operating mode, using effect is fine, and China Petrochemical Industry, the oil pipelines such as PetroChina Company Limited. use in a large number.But its flap of this stop valve is taper, and be easy to be washed away bad by impurity etc., sealability is low.
Summary of the invention
The purpose of this utility model is to provide a kind of integral type Y type self-sealing stop valve, can prevent its flap from being washed away bad by impurity, good seal performance, extends stop valve working life.
The purpose of this utility model realizes like this, a kind of integral type Y type self-sealing stop valve, be included in the valve rod installed in valve body, valve rod lower end has flap, its longitudinal section shape of described flap is parabola shaped, and on the flap outer periphery sealing surface contacted with the valve seat in valve body, built-up welding arranges stellite layer.
The utility model flap outer surface adopts parabolic shaped structure, and on sealing surface, built-up welding officials Tai Li alloy-layer, effectively prevent washing away of impurity, and corrosion, sealability is superior, extends the working life of stop valve.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is that master of the present utility model looks cross-sectional view.
Embodiment
A kind of integral type Y type self-sealing stop valve, as shown in Figure 1, be included in the valve rod 3 installed in valve body 1, valve rod 3 lower end has flap 2, its longitudinal section shape of described flap 2 is parabola shaped, and on the flap 2 outer periphery sealing surface contacted with the valve seat 19 in valve body 1, built-up welding arranges stellite layer 18.
As further improvement of the utility model, valve rod 3 in valve body 1 sets gradually from down to up pressure sealing ring 4, selfsealings seat 5, filler pad 6, filler 7 and gland 8, on valve rod 3 on gland 8, suit arranges horizontal pressure foot 9, stud bolt 10 by vertically arranging between the flange of horizontal pressure foot 9 and valve body 1 sidewall is connected and fixed, and stud bolt 10 is arranged locking nut 11.Adopt this sealing configuration from bottom to top, compared with existing stop valve, pressure more high sealing performance is better, greatly reduces the possibility of leakage.
As further improvement of the utility model, valve body 1 upper portion side wall is vertically arranged a C shape support 13, anti-rotation clamping plate 12 are horizontally disposed with in the middle part of support 13, valve rod 3 is clamped by anti-rotation clamping plate 12, support 13 arranges groove in top, Stem Mut 15 is equipped with in groove, valve rod 3 upwards passes in Stem Mut 15, plane bearing 14 is set between Stem Mut 15 bottom surface and groove inner top surface, Stem Mut 15 upper end level affixed handwheel 16, Stem Mut 15 top suit arranges valve rod protective cap 17, effectively prevent falling into of the impurity such as dust storm rainwater dust, prevent valve rod from getting rusty stuck.
When the utility model uses, rotate handwheel 16, Stem Mut 15 is rotated, and poppet stem 3 moves up and down, and makes switch moment very little, and operation is light, easy to use.
Claims (3)
1. an integral type Y type self-sealing stop valve, be included in the valve rod installed in valve body, valve rod lower end has flap, it is characterized in that: its longitudinal section shape of described flap is parabola shaped, and on the flap outer periphery sealing surface contacted with the valve seat in valve body, built-up welding arranges stellite layer.
2. stop valve according to claim 1, it is characterized in that: the valve rod in valve body sets gradually from down to up pressure sealing ring, selfsealings seat, filler pad, filler and gland, on valve rod on gland, suit arranges horizontal pressure foot, be connected and fixed by the vertical stud bolt arranged between horizontal pressure foot and the flange of body wall, stud bolt arranged locking nut.
3. stop valve according to claim 1; it is characterized in that: valve body upper portion side wall is vertically arranged a C shape support; mid-stent is horizontally disposed with anti-rotation clamping plate; valve rod is clamped by anti-rotation clamping plate, arranges groove in cantilever tip, is equipped with Stem Mut in groove; valve rod upwards passes in Stem Mut; between Stem Mut bottom surface and groove inner top surface, plane bearing is set, Stem Mut upper end level affixed handwheel, Stem Mut top suit valve rod protective cap is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206580.XU CN204553881U (en) | 2015-04-08 | 2015-04-08 | Integral type Y type self-sealing stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206580.XU CN204553881U (en) | 2015-04-08 | 2015-04-08 | Integral type Y type self-sealing stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553881U true CN204553881U (en) | 2015-08-12 |
Family
ID=53828993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520206580.XU Expired - Fee Related CN204553881U (en) | 2015-04-08 | 2015-04-08 | Integral type Y type self-sealing stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204553881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723840A (en) * | 2017-10-30 | 2019-05-07 | 四川沃兰特阀门制造有限公司 | A kind of high temperature and high pressure cut-off valve |
-
2015
- 2015-04-08 CN CN201520206580.XU patent/CN204553881U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723840A (en) * | 2017-10-30 | 2019-05-07 | 四川沃兰特阀门制造有限公司 | A kind of high temperature and high pressure cut-off 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 |
Granted publication date: 20150812 Termination date: 20210408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |