CN105736722A - Y-shaped stop valve with replaceable valve seat - Google Patents
Y-shaped stop valve with replaceable valve seat Download PDFInfo
- Publication number
- CN105736722A CN105736722A CN201410761179.2A CN201410761179A CN105736722A CN 105736722 A CN105736722 A CN 105736722A CN 201410761179 A CN201410761179 A CN 201410761179A CN 105736722 A CN105736722 A CN 105736722A
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- Prior art keywords
- valve
- valve seat
- movable
- seat
- head
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Abstract
The invention relates to a Y-shaped stop valve with a replaceable valve seat. The Y-shaped stop valve comprises a valve body. An inlet channel and an outlet channel which are used for circulation of contained media are arranged at the bottom of the valve body. A valve deck is arranged at the upper end of the valve body. A valve rod penetrating the valve deck is arranged in the valve body. The lower end of the valve rod is connected with a valve head. The valve head is provided with a valve head sealing face. A step is arranged at the inner end of the outlet channel of the valve body. A movable valve seat is arranged in the step. The movable valve seat is provided with a movable valve seat sealing face, and a sealing pair is formed through cooperation of the movable valve seat sealing face and the valve head sealing face. The Y-shaped stop valve is simple in structure and convenient to manufacture, the movable valve seat is arranged at the inner end of the outlet channel, and therefore when the movable valve seat sealing face is damaged, the movable valve seat is convenient to replace and maintain, and time and labor are saved.
Description
Technical field
The present invention relates to a kind of Y-shaped cut-off 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, the Y-shaped cut-off valve of a kind of valve with changeable valve seat easy to maintenance.
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, described valve rod lower end is connected to valve head, and described valve head is provided with valve head sealing surface, and the inner of the exit passageway of valve body is provided with step, being provided with movable valve seat in described step, described movable valve seat is provided with movable valve seat sealing surface and matches with valve head sealing surface composition sealing pair.
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, easily manufactured, by the inner installation activity valve seat at exit passageway, after the sealing surface of movable valve seat damages, it is simple to repair and replacement movable valve seat, time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
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.
Detailed description of the invention
A kind of Y-shaped cut-off valve of valve with changeable valve seat, 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, described valve rod 5 lower end is connected to valve head 6, described 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, being provided with movable valve seat 7 in described step, described movable valve seat 7 is provided with movable valve seat sealing surface and matches with valve head sealing surface composition sealing pair.
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 (2)
1. the Y-shaped cut-off valve of a valve with changeable valve seat, 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, described valve rod lower end is connected to valve head, described valve head is provided with valve head sealing surface, the inner of the exit passageway of valve body is provided with step, being provided with movable valve seat in described step, described movable valve seat is provided with movable valve seat sealing surface and matches with valve head sealing surface composition sealing pair.
2. the Y-shaped cut-off valve of a kind of valve with changeable valve seat 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 |
|---|---|---|---|
| CN201410761179.2A CN105736722A (en) | 2014-12-12 | 2014-12-12 | Y-shaped stop valve with replaceable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410761179.2A CN105736722A (en) | 2014-12-12 | 2014-12-12 | Y-shaped stop valve with replaceable valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105736722A true CN105736722A (en) | 2016-07-06 |
Family
ID=56240549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410761179.2A Pending CN105736722A (en) | 2014-12-12 | 2014-12-12 | Y-shaped stop valve with replaceable valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185467A (en) * | 2018-11-20 | 2019-01-11 | 南通龙源电站阀门有限公司 | A kind of antiscour valve with changeable valve seat shut-off valve |
| CN111306306A (en) * | 2020-03-12 | 2020-06-19 | 吴忠中创自控阀有限公司 | Y-shaped stop valve with detachable movable valve seat |
-
2014
- 2014-12-12 CN CN201410761179.2A patent/CN105736722A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185467A (en) * | 2018-11-20 | 2019-01-11 | 南通龙源电站阀门有限公司 | A kind of antiscour valve with changeable valve seat shut-off valve |
| CN111306306A (en) * | 2020-03-12 | 2020-06-19 | 吴忠中创自控阀有限公司 | Y-shaped stop valve with detachable movable valve seat |
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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 |