CN105736708A - High-performance stop valve - Google Patents
High-performance stop valve Download PDFInfo
- Publication number
- CN105736708A CN105736708A CN201410761414.6A CN201410761414A CN105736708A CN 105736708 A CN105736708 A CN 105736708A CN 201410761414 A CN201410761414 A CN 201410761414A CN 105736708 A CN105736708 A CN 105736708A
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- CN
- China
- Prior art keywords
- valve
- seat
- movable
- valve seat
- performance stop
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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 high-performance stop valve. The high-performance stop valve comprises a valve body, and an inlet channel and an outlet channel allowing media to circulate therein are formed in the bottom of the valve body; a valve cover is arranged at the upper end of the valve body, a valve rod penetrating the valve cover is arranged in the valve body, the lower end of the valve rod is connected with a valve head, a valve head sealing face is arranged on the valve head, a step is arranged at the inner end of the outlet channel of the valve body, and a movable valve seat is arranged in the step; a sealing pair formed through matching of a valve seat sealing face and a valve head sealing face is arranged on the movable valve seat, an annular step is arranged on the lower end face of the movable valve seat, and an annular cavity is formed by the annular step and the inner wall of the step of the outlet channel; a sealing ring is arranged in the annular cavity, and the valve head is sleeved with a guide sleeve; the lower end of the guide sleeve abuts against the movable valve seat, and a locking nut is arranged at the upper end of the guide sleeve and is in threaded connection with the inner wall of the valve body; and the high-performance stop valve is simple in structure, through the adoption of the movable valve seat, replacement in the use process can be conveniently achieved at any time, maintaining is convenient, and the sealing effect is good.
Description
Technical field
The present invention relates to a kind of high-performance stop valve, belong to valve technology field.
Background technology
Stop valve, is again pipe valve, is one of most popular a kind of valve, and why very popular it is, be due in opening and closing process between sealing surface frictional force little, relatively durable, Lift is little, easy to manufacture, easy to maintenance, it is applicable not only to low pressure, and is also applied for high pressure.The Guan Bi principle of stop valve is, relies on valve rod pressure, makes valve clack sealing surface and sealing surface of seat fit tightly, and stops medium circulation.Existing Y-shaped cut-off valve, its seal form many employings valve body built-up welding stellite alloy, this technics comparing is loaded down with trivial details, and to heavy caliber stop valve operating difficulties, heap postwelding needs big Equipment for Heating Processing.In use if there is the damage of the damage of sealing surface, particularly valve body sealing surface, it is difficult to realizing keeping in repair replacing at the scene, reducing sealing effectiveness, thus have impact on the normal operation of equipment.
Summary of the invention
For drawbacks described above, it is an object of the invention to provide a kind of simple in construction, it is simple to change valve seat, easy to maintenance, good sealing effect, a kind of high-performance stop valve of long service life.
For this technical solution adopted in the present invention it is:
Including valve body, described body base is provided with the intake channel and exit passageway that hold medium circulation, valve body upper end is provided with valve gap, the valve rod of valve gap it is provided with through in valve body, valve rod lower end is connected to valve head, valve head is provided with valve head sealing surface, the inner of the exit passageway of valve body is provided with step, movable valve seat is installed in step, movable valve seat is provided with sealing surface of seat and matches with valve head sealing surface composition sealing pair, the lower surface of movable valve seat is provided with the stepped inner walls composition toroidal cavity of ring-shaped step and exit passageway, sealing ring it is provided with in toroidal cavity, pilot sleeve it is cased with outside valve head, the lower end of described pilot sleeve props up movable valve seat, the upper end of pilot sleeve is provided with locking nut and threadeds with valve interior wall.
Described sealing ring is C-shaped sealing ring, and the opening direction of described C-shaped sealing ring is towards movable valve seat.
Described sealing ring is fabricated by by elastomeric material.
The barrel of described pilot sleeve is provided with some through holes, and described through hole is along barrel oblique arrangement.
Angle between longitudinal center line and the longitudinal center line of intake channel of described valve rod is 50-70 °.
The invention have the advantage that
Present configuration is simple, by adopting movable valve seat to coordinate with valve head, it is simple in use change at any time, easy to maintenance, between movable valve seat and valve body, set up sealing ring, reduce medium and reveal, improve sealing effectiveness, locking nut forces in movable valve seat by pilot sleeve, and extrude C-shaped sealing ring, improve sealing effectiveness further, by starting through hole on pilot sleeve, reduce medium washing away sealing pair, thus improve the service life of movable valve seat.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the expanded view of pilot sleeve in Fig. 1.
Figure 1 is valve body, 2 is intake channel, 3 is exit passageway, 4 is valve gap, 5 is valve rod, 6 is valve head, 7 is movable valve seat, 8 is sealing ring, 9 is pilot sleeve, 10 is locking nut, 11 is through hole.
Detailed description of the invention
A kind of high-performance stop valve, including valve body 1, the intake channel 2 and exit passageway 3 that hold medium circulation it is provided with bottom described valve body 1, valve body 1 upper end is provided with valve gap 4, the valve rod 5 of valve gap 4 it is provided with through in valve body 1, valve rod 5 lower end is connected to valve head 6, valve head 6 is provided with valve head sealing surface, the inner of the exit passageway 3 of valve body 1 is provided with step, movable valve seat 7 is installed in step, movable valve seat 7 is provided with sealing surface of seat and matches with valve head sealing surface composition sealing pair, the lower surface of movable valve seat 7 is provided with the stepped inner walls composition toroidal cavity of ring-shaped step and exit passageway 3, sealing ring 8 it is provided with in toroidal cavity, pilot sleeve 9 it is cased with outside valve head 6, the lower end of described pilot sleeve 9 props up movable valve seat 7, the upper end of pilot sleeve 9 is provided with locking nut 10 and is connected with valve body 1 inner thread.
Sealing ring 8 of the present invention is C-shaped sealing ring, and the opening direction of described C-shaped sealing ring is towards movable valve seat 7.
Sealing ring 8 of the present invention is fabricated by by elastomeric material.
The barrel of pilot sleeve 9 of the present invention is provided with some through holes 11, and described through hole 11 is along barrel oblique arrangement.
Angle between longitudinal center line and the longitudinal center line of intake channel 2 of valve rod 5 of the present invention is 50-70 °.
Claims (5)
1. a high-performance stop valve, it is characterized in that, including valve body, described body base is provided with the intake channel and exit passageway that hold medium circulation, valve body upper end is provided with valve gap, the valve rod of valve gap it is provided with through in valve body, valve rod lower end is connected to valve head, valve head is provided with valve head sealing surface, the inner of the exit passageway of valve body is provided with step, movable valve seat is installed in step, movable valve seat is provided with sealing surface of seat and matches with valve head sealing surface composition sealing pair, the lower surface of movable valve seat is provided with the stepped inner walls composition toroidal cavity of ring-shaped step and exit passageway, sealing ring it is provided with in toroidal cavity, pilot sleeve it is cased with outside valve head, the lower end of described pilot sleeve props up movable valve seat, the upper end of pilot sleeve is provided with locking nut and threadeds with valve interior wall.
2. a kind of high-performance stop valve according to claim 1, it is characterised in that described sealing ring is C-shaped sealing ring, the opening direction of described C-shaped sealing ring is towards movable valve seat.
3. a kind of high-performance stop valve according to claim 1 and 2, it is characterised in that described sealing ring is fabricated by by elastomeric material.
4. a kind of high-performance stop valve according to claim 1, it is characterised in that the barrel of described pilot sleeve is provided with some through holes, described through hole is along barrel oblique arrangement.
5. a kind of high-performance stop valve according to claim 1, it is characterised in that the angle between longitudinal center line and the longitudinal center line of intake channel of described valve rod is 50-70 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410761414.6A CN105736708A (en) | 2014-12-12 | 2014-12-12 | High-performance stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410761414.6A CN105736708A (en) | 2014-12-12 | 2014-12-12 | High-performance stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105736708A true CN105736708A (en) | 2016-07-06 |
Family
ID=56241142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410761414.6A Pending CN105736708A (en) | 2014-12-12 | 2014-12-12 | High-performance stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736708A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374900A (en) * | 2018-02-24 | 2018-08-07 | 江苏亿阀股份有限公司 | A kind of supercritical gas order of reactor adjusting pressure reducing valve |
-
2014
- 2014-12-12 CN CN201410761414.6A patent/CN105736708A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374900A (en) * | 2018-02-24 | 2018-08-07 | 江苏亿阀股份有限公司 | A kind of supercritical gas order of reactor adjusting pressure reducing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |
|
| WD01 | Invention patent application deemed withdrawn after publication |