CN204420147U - A kind of cast-iron butterfly valve valve seat - Google Patents
A kind of cast-iron butterfly valve valve seat Download PDFInfo
- Publication number
- CN204420147U CN204420147U CN201420856794.7U CN201420856794U CN204420147U CN 204420147 U CN204420147 U CN 204420147U CN 201420856794 U CN201420856794 U CN 201420856794U CN 204420147 U CN204420147 U CN 204420147U
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- valve seat
- valve
- seat body
- cast
- jump
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Abstract
The utility model relates to a kind of cast-iron butterfly valve valve seat, comprise valve seat body, described valve seat body is circular, at the valve rod mounting hole be circumferentially provided with for the up/down perforation coordinated with valve rod of valve seat body, at the jump-ring slot being circumferentially provided with annular of valve seat body for axially locating; The end face of two sides of valve seat body is provided with the locating slot of annular, locating slot is evenly equipped with positioning hole.The effect that the utility model is useful is: adopt jump ring to snap in the jump-ring slot of valve body, valve seat and locate valve seat and valve body, achieve two-way location and two way sealed.This newly-designed valve seat can locate the position of valve seat in valve body more accurately, and the phenomenon that there will not be assembling not in place, certainly in use also can not be pressed against certain side of valve body because of pressurized.
Description
Technical field
The utility model relates to butterfly valve field, especially a kind of cast-iron butterfly valve valve seat.
Background technique
Butterfly valve adopts disc type open-shut device, and disc type flap is fixed on valve rod, completes keying effect by rotation valve rod, forms the sealing relationship of medium between the sealing surface of disc type flap and valve seat simultaneously.When flap opening angle is 20 ° ~ 75 °, flow and opening angle linear, have the characteristic of throttling.In brief, butterfly valve is a kind of valve opening, cut out or regulate rate-of flow with disc type open-shut device reciprocating rotating 0 ~ 90 °.
The conventional design of valve seat makes to form unidirectional location between valve seat and valve body to seal, its deficiency is: can not accurately locate the position of valve seat in valve body, and there will be assembling phenomenon not in place, certain side of valve body in use also can be pressed against because of pressurized.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, provides a kind of cast-iron butterfly valve valve seat.
The utility model solves the technological scheme that its technical problem adopts: this cast-iron butterfly valve valve seat, comprise valve seat body, described valve seat body is circular, at the valve rod mounting hole be circumferentially provided with for the up/down perforation coordinated with valve rod of valve seat body, at the jump-ring slot being circumferentially provided with annular of valve seat body for axially locating; The end face of two sides of valve seat body is provided with the locating slot of annular, locating slot is evenly equipped with positioning hole.
As preferably, locating slot is evenly equipped with four positioning holes.
The effect that the utility model is useful is: adopt jump ring to snap in the jump-ring slot of valve body, valve seat and locate valve seat and valve body, achieve two-way location and two way sealed.This newly-designed valve seat can locate the position of valve seat in valve body more accurately, and the phenomenon that there will not be assembling not in place, certainly in use also can not be pressed against certain side of valve body because of pressurized.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is A-A sectional structure schematic diagram of the present utility model.
Fig. 3 is B-B sectional structure schematic diagram of the present utility model.
Fig. 4 is perspective view of the present utility model.
Description of reference numerals: valve seat body 1, jump-ring slot 2, locating slot 3, valve rod mounting hole 4, positioning hole 5.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in the figure, this cast-iron butterfly valve valve seat, comprises valve seat body 1, and described valve seat body 1 is in circular, at the valve rod mounting hole 4 be circumferentially provided with for the up/down perforation coordinated with valve rod of valve seat body 1, at the jump-ring slot 2 being circumferentially provided with annular of valve seat body 1 for axially locating; The end face of two sides of valve seat body 1 is provided with the locating slot 3 of annular, locating slot 3 is evenly equipped with four positioning holes 5, seals for radial location.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (2)
1. a cast-iron butterfly valve valve seat, comprise valve seat body (1), it is characterized in that: described valve seat body (1) is in circular, at the valve rod mounting hole (4) be circumferentially provided with for the up/down perforation coordinated with valve rod of valve seat body (1), at the jump-ring slot (2) being circumferentially provided with annular of valve seat body (1) for axially locating; The end face of two sides of valve seat body (1) is provided with the locating slot (3) of annular, locating slot (3) is evenly equipped with positioning hole (5).
2. cast-iron butterfly valve valve seat according to claim 1, is characterized in that: on locating slot (3), be evenly equipped with four positioning holes (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420856794.7U CN204420147U (en) | 2014-12-30 | 2014-12-30 | A kind of cast-iron butterfly valve valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420856794.7U CN204420147U (en) | 2014-12-30 | 2014-12-30 | A kind of cast-iron butterfly valve valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204420147U true CN204420147U (en) | 2015-06-24 |
Family
ID=53470518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420856794.7U Active CN204420147U (en) | 2014-12-30 | 2014-12-30 | A kind of cast-iron butterfly valve valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204420147U (en) |
-
2014
- 2014-12-30 CN CN201420856794.7U patent/CN204420147U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |