CN203718040U - Double ball valve for coal mine - Google Patents
Double ball valve for coal mine Download PDFInfo
- Publication number
- CN203718040U CN203718040U CN201420097387.2U CN201420097387U CN203718040U CN 203718040 U CN203718040 U CN 203718040U CN 201420097387 U CN201420097387 U CN 201420097387U CN 203718040 U CN203718040 U CN 203718040U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- ball
- ring
- liquid outlet
- 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.)
- Expired - Lifetime
Links
- 239000003245 coal Substances 0.000 title abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000005065 mining Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 208000019914 Mental Fatigue Diseases 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420097387.2U CN203718040U (en) | 2014-03-05 | 2014-03-05 | Double ball valve for coal mine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420097387.2U CN203718040U (en) | 2014-03-05 | 2014-03-05 | Double ball valve for coal mine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203718040U true CN203718040U (en) | 2014-07-16 |
Family
ID=51157192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201420097387.2U Expired - Lifetime CN203718040U (en) | 2014-03-05 | 2014-03-05 | Double ball valve for coal mine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203718040U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112324949A (en) * | 2020-11-10 | 2021-02-05 | 中核嘉华设备制造股份公司 | Hastelloy plug valve and use method thereof |
-
2014
- 2014-03-05 CN CN201420097387.2U patent/CN203718040U/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112324949A (en) * | 2020-11-10 | 2021-02-05 | 中核嘉华设备制造股份公司 | Hastelloy plug valve and use method thereof |
CN112324949B (en) * | 2020-11-10 | 2022-09-23 | 中核嘉华设备制造股份公司 | Hastelloy plug valve and using method thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201124 Address after: 450016 No. ninth, 167 Avenue, Zhengzhou Economic Development Zone, Henan, China Patentee after: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Patentee after: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Address before: 450016 No. ninth, 167 Avenue, Zhengzhou Economic Development Zone, Henan, China Patentee before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220725 Address after: 450016 No. 167, 9th Street, Zhengzhou area (Economic Development Zone), Henan pilot Free Trade Zone, Zhengzhou City, Henan Province Patentee after: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Address before: No.167, 9th Street, Zhengzhou Economic Development Zone, Henan Province, 450016 Patentee before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Patentee before: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CP03 | Change of name, title or address |
Address after: No.167, 9th Street, Zhengzhou Economic and Technological Development Zone, Henan Province, 450016 Patentee after: Zhengzhou Hengda Intelligent Control Technology Co.,Ltd. Address before: 450016 No. 167, 9th Street, Zhengzhou area (Economic Development Zone), Henan pilot Free Trade Zone, Zhengzhou City, Henan Province Patentee before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
|
CP03 | Change of name, title or address | ||
CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
CX01 | Expiry of patent term |