CN101435516A - Manufacturing process of double-barrier diaphragm check valve equipped with backflow hole - Google Patents
Manufacturing process of double-barrier diaphragm check valve equipped with backflow hole Download PDFInfo
- Publication number
- CN101435516A CN101435516A CNA2007100387743A CN200710038774A CN101435516A CN 101435516 A CN101435516 A CN 101435516A CN A2007100387743 A CNA2007100387743 A CN A2007100387743A CN 200710038774 A CN200710038774 A CN 200710038774A CN 101435516 A CN101435516 A CN 101435516A
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- CN
- China
- Prior art keywords
- double
- check valve
- backflow
- diaphragm check
- manufacturing process
- 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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- Check Valves (AREA)
Abstract
The invention discloses a process for manufacturing a double-diaphragm check valve with a backflow hole. The process mainly comprises the following steps: an outlet of the double diaphragm is provided with the backflow hole. The invention has reasonable process and novel design. And the double diaphragm check valve manufactured by the process allows backwater to flow directly in the double diaphragm during back flowing, has the function of stopping backflow, effectively overcomes the defects of slow backflow speed of the backflow water, slow closing of the valve and the generation of water hammer, and has popularization value.
Description
Technical field:
The present invention relates to a kind of manufacturing technology field of valve, particularly relate to a kind of manufacturing technology of double-barrier diaphragm check valve.
Background technique:
Existing double-barrier diaphragm check valve, it is slow to exist the recirculation water back-flow velocity, and valve closing is slow, causes the defective of water hammer.
Summary of the invention:
Technical problem to be solved by this invention provides and a kind ofly can effectively overcome above-mentioned defective, has the manufacturing process of the pilot valve of rapid closing function.The technical solution adopted for the present invention to solve the technical problems is that a kind of manufacturing process that is provided with the double-barrier diaphragm check valve of return port mainly comprises following steps: the outlet port of two barrier films provides a return port.
Owing to adopt such scheme, be not difficult to draw the present invention and have following beneficial effect, technology of the present invention is reasonable, is skillfully constructed, the double-barrier diaphragm check valve that produces, recirculation water flows directly in two barrier films during backflow, play the non-return effect, overcome effectively that the recirculation water back-flow velocity was slow in the past, valve closing is slow, cause the defective of water hammer, the tool promotional value.
Description of drawings:
Below in conjunction with drawings and Examples the present invention is described in further detail.
Accompanying drawing is the structural representation of the double-barrier diaphragm check valve of the present invention's manufacturing.
Embodiment:
A kind of manufacturing process that is provided with the double-barrier diaphragm check valve of return port mainly comprises following steps: the outlet port of two barrier films provides a return port.Describe in further detail below in conjunction with the structure of accompanying drawing the double-barrier diaphragm check valve of manufacturing of the present invention.Referring to accompanying drawing, two barrier films 3 are located in the valve pocket of valve body 1 valve gap 2 compositions, and are fixing by valve gap 2.Return port 13 is opened in the outlet port of two barrier films 3, and through hole 6 is opened in the side of two barrier films 3.
Claims (1)
1, a kind of manufacturing process that is provided with the double-barrier diaphragm check valve of return port, mainly comprise following steps: the outlet port of two barrier films provides a return port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100387743A CN101435516A (en) | 2007-03-29 | 2007-03-29 | Manufacturing process of double-barrier diaphragm check valve equipped with backflow hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100387743A CN101435516A (en) | 2007-03-29 | 2007-03-29 | Manufacturing process of double-barrier diaphragm check valve equipped with backflow hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101435516A true CN101435516A (en) | 2009-05-20 |
Family
ID=40710091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100387743A Pending CN101435516A (en) | 2007-03-29 | 2007-03-29 | Manufacturing process of double-barrier diaphragm check valve equipped with backflow hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101435516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563138A (en) * | 2011-12-24 | 2012-07-11 | 常州常恒露斯电器有限公司 | Diaphragm type check valve and manufacture method thereof |
-
2007
- 2007-03-29 CN CNA2007100387743A patent/CN101435516A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563138A (en) * | 2011-12-24 | 2012-07-11 | 常州常恒露斯电器有限公司 | Diaphragm type check valve and manufacture method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |