CN102252116B - 一种内置膜片式低阻力倒流防止器 - Google Patents
一种内置膜片式低阻力倒流防止器 Download PDFInfo
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- CN102252116B CN102252116B CN 201110200999 CN201110200999A CN102252116B CN 102252116 B CN102252116 B CN 102252116B CN 201110200999 CN201110200999 CN 201110200999 CN 201110200999 A CN201110200999 A CN 201110200999A CN 102252116 B CN102252116 B CN 102252116B
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- Prior art keywords
- valve body
- flap
- diaphragm
- type low
- backflow preventer
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- 238000007789 sealing Methods 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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Abstract
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Claims (10)
Priority Applications (1)
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CN 201110200999 CN102252116B (zh) | 2011-07-18 | 2011-07-18 | 一种内置膜片式低阻力倒流防止器 |
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CN 201110200999 CN102252116B (zh) | 2011-07-18 | 2011-07-18 | 一种内置膜片式低阻力倒流防止器 |
Publications (2)
Publication Number | Publication Date |
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CN102252116A CN102252116A (zh) | 2011-11-23 |
CN102252116B true CN102252116B (zh) | 2013-03-20 |
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CN 201110200999 Active CN102252116B (zh) | 2011-07-18 | 2011-07-18 | 一种内置膜片式低阻力倒流防止器 |
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CN (1) | CN102252116B (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105257870B (zh) * | 2015-11-27 | 2018-04-20 | 江苏华太电力仪表有限公司 | 一种直通式高密封性止回阀 |
CN108087593B (zh) * | 2016-11-19 | 2023-11-07 | 台州阳春机电有限公司 | 止逆泄流阀 |
CN111512077A (zh) * | 2017-12-22 | 2020-08-07 | 费森尤斯医疗护理德国有限责任公司 | 回流防止装置及具有该回流防止装置的透析设备 |
CN108591543A (zh) * | 2018-07-13 | 2018-09-28 | 中阀控股(集团)有限公司 | 一种低阻力倒流防止器 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10335380B3 (de) * | 2003-07-28 | 2004-11-25 | Alfred Kärcher Gmbh & Co. Kg | Rückflußverhinderer |
WO2005012654A2 (de) * | 2003-07-28 | 2005-02-10 | Alfred Kärcher Gmbh & Co. Kg | Rückflussverhinderer |
CN101457848A (zh) * | 2007-12-10 | 2009-06-17 | 三浦工业株式会社 | 单向阀 |
CN201787144U (zh) * | 2010-07-22 | 2011-04-06 | 宁波华成阀门有限公司 | 一种二级止回阀 |
KR20110040485A (ko) * | 2009-10-14 | 2011-04-20 | (주)에쎈테크 | 급수용 감압밸브 |
CN102042430A (zh) * | 2010-12-03 | 2011-05-04 | 浙江盾安阀门有限公司 | 一种减压式倒流防止器 |
CN202176770U (zh) * | 2011-07-18 | 2012-03-28 | 浙江盾安阀门有限公司 | 一种内置膜片式低阻力倒流防止器 |
-
2011
- 2011-07-18 CN CN 201110200999 patent/CN102252116B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10335380B3 (de) * | 2003-07-28 | 2004-11-25 | Alfred Kärcher Gmbh & Co. Kg | Rückflußverhinderer |
WO2005012654A2 (de) * | 2003-07-28 | 2005-02-10 | Alfred Kärcher Gmbh & Co. Kg | Rückflussverhinderer |
CN101457848A (zh) * | 2007-12-10 | 2009-06-17 | 三浦工业株式会社 | 单向阀 |
KR20110040485A (ko) * | 2009-10-14 | 2011-04-20 | (주)에쎈테크 | 급수용 감압밸브 |
CN201787144U (zh) * | 2010-07-22 | 2011-04-06 | 宁波华成阀门有限公司 | 一种二级止回阀 |
CN102042430A (zh) * | 2010-12-03 | 2011-05-04 | 浙江盾安阀门有限公司 | 一种减压式倒流防止器 |
CN202176770U (zh) * | 2011-07-18 | 2012-03-28 | 浙江盾安阀门有限公司 | 一种内置膜片式低阻力倒流防止器 |
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Publication number | Publication date |
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CN102252116A (zh) | 2011-11-23 |
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PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: 311835 Zhuji City, Zhejiang Province Industrial Zone, mouth shop Patentee after: ZHEJIANG DUNAN VALVE Co.,Ltd. Address before: 311835 Zhuji City, Zhejiang Province Industrial Zone, mouth shop Patentee before: ZHEJIANG DUNAN VALVE Co.,Ltd. |
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CP03 | Change of name, title or address |
Address after: 311800 Zhejiang city in Shaoxing Province town of Zhuji city shop Industrial Zone Patentee after: Zhejiang deai Intelligent Control Technology Co.,Ltd. Address before: 311835, Shaoxing City, Zhejiang province Zhuji Port Industrial Zone Patentee before: ZHEJIANG DUNAN VALVE Co.,Ltd. |
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CP03 | Change of name, title or address | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A built-in diaphragm type low resistance backflow preventer Effective date of registration: 20211220 Granted publication date: 20130320 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang deai Intelligent Control Technology Co.,Ltd. Registration number: Y2021980015397 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230724 Granted publication date: 20130320 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang deai Intelligent Control Technology Co.,Ltd. Registration number: Y2021980015397 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |