CN205780921U - A kind of centre type butterfly valve - Google Patents
A kind of centre type butterfly valve Download PDFInfo
- Publication number
- CN205780921U CN205780921U CN201620476556.2U CN201620476556U CN205780921U CN 205780921 U CN205780921 U CN 205780921U CN 201620476556 U CN201620476556 U CN 201620476556U CN 205780921 U CN205780921 U CN 205780921U
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- CN
- China
- Prior art keywords
- valve
- valve body
- observation port
- type butterfly
- port
- 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.)
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Abstract
This utility model relates to a kind of centre type butterfly valve, including valve body, valve disc, seat ring and valve rod, it is characterised in that observation port is distributed on valve body, observation port is to the through hole in valve body from valve body, observation port inner port connects with body cavity, and external port connects sealing screw.It is characterized in: by the observation port arranged on valve body, valves leakage can be found in time, accurately, it is achieved thereby that repair or replace valve in time.Its simple in construction, it is easy to manufacture, it is simple to maintenance.
Description
Technical field
This utility model relates to a kind of valve, particularly a kind of centre type butterfly valve.
Background technology
At present, centre type butterfly valve all uses the sealing structure arranging liner rubber between valve body and valve disc, if occurring leakage between valve disc end face E and F and seat ring, medium can be caused to enter between seat ring and valve body, and this means that internal hemorrhage due to trauma occurs in valve.Existing butterfly valve all exists cannot understand whether valve exists the situation generation of internal hemorrhage due to trauma, and normal to valve uses generation to carry out hidden danger, reduces the reliability that centre type butterfly valve uses.
Summary of the invention
The purpose of this utility model is to provide one and can grasp valve in time and whether there is internal hemorrhage due to trauma, and simple in construction, is prone to processing and the centre type butterfly valve safeguarded.
Technical solution of the present utility model is: a kind of centre type butterfly valve, including valve body, valve disc, seat ring and valve rod, it is characterized in that being distributed observation port on valve body, observation port is to the through hole in valve body from valve body, observation port inner port connects with body cavity, and external port connects sealing screw.
Described observation port is along valve body circumference mal-distribution, and is crisscross arranged with pipeline flange hole.
Feature of the present utility model is: by the observation port arranged on valve body, can find valves leakage in time, accurately, it is achieved thereby that repair or replace valve in time.Its simple in construction, it is easy to manufacture, it is simple to maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the B direction view of Fig. 1.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, this utility model is mainly made up of valve body 1, valve disc 2, seat ring 3 and valve rod 4.At circumferentially arranged four the asymmetric observation ports 5 of valve body, see Fig. 2,3, the quantity of valve body upper observation hole selects according to the size of valve aperture, is not limited to four.Must stagger with pipeline flange hole in the position of observation port, it is to avoid affect the installation of pipeline flange bolt and observe whether valve internal hemorrhage due to trauma occurs.Observation port is to the through hole in valve body from valve body, its inner port connects with body cavity, external port tapping, but do not attack logical i.e. not tapping at valve body inner port, stay 3mm～5mm surplus, seal with screw 6 on observation port, can prevent impurity from entering into body cavity, the most do not affect medium and flow out from observation port.
If valve generation internal hemorrhage due to trauma, medium can flow out from the gap between observation port 5 and screw, finds in time and takes maintenance or replacing measure.
Claims (2)
1. a centre type butterfly valve, including valve body, valve disc, seat ring and valve rod, it is characterised in that observation port is distributed on valve body, and observation port is that observation port inner port connects with body cavity to the through hole in valve body from valve body, and external port connects sealing screw.
A kind of centre type butterfly valve the most according to claim 1, it is characterised in that described observation port is along valve body circumference mal-distribution, and is crisscross arranged with pipeline flange hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476556.2U CN205780921U (en) | 2016-05-24 | 2016-05-24 | A kind of centre type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476556.2U CN205780921U (en) | 2016-05-24 | 2016-05-24 | A kind of centre type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780921U true CN205780921U (en) | 2016-12-07 |
Family
ID=58116088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620476556.2U Active CN205780921U (en) | 2016-05-24 | 2016-05-24 | A kind of centre type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780921U (en) |
-
2016
- 2016-05-24 CN CN201620476556.2U patent/CN205780921U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |