WO2005012654A3 - Rückflussverhinderer - Google Patents

Rückflussverhinderer Download PDF

Info

Publication number
WO2005012654A3
WO2005012654A3 PCT/EP2004/008416 EP2004008416W WO2005012654A3 WO 2005012654 A3 WO2005012654 A3 WO 2005012654A3 EP 2004008416 W EP2004008416 W EP 2004008416W WO 2005012654 A3 WO2005012654 A3 WO 2005012654A3
Authority
WO
WIPO (PCT)
Prior art keywords
check valve
housing
backflow preventer
retained
outlet 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.)
Ceased
Application number
PCT/EP2004/008416
Other languages
English (en)
French (fr)
Other versions
WO2005012654A2 (de
Inventor
Ronald Krauter
Martin Kloepfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Priority to DK04763544T priority Critical patent/DK1649113T3/da
Priority to EP04763544A priority patent/EP1649113B1/de
Publication of WO2005012654A2 publication Critical patent/WO2005012654A2/de
Publication of WO2005012654A3 publication Critical patent/WO2005012654A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/106—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using two or more check valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/108—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves having an aerating valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members

Landscapes

  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Fluid-Driven Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

Die Erfindung betrifft einen Rückflussverhinderer (10) mit einern Gehäuse (12), das eine Einlassöffnung (18), eine Auslassöffnung (19) sowie eine zwischen diesen Öffnungen angeordnete Leckageöffnung (23) aufweist und ein erstes und ein zweites Rückschlagventil (54, 74) aufnimmt, die hintereinander angeordnet sind, wobei das erste Rückschlagventil (54) im Gehäuse (12) verschiebbar gehalten ist und durch dessen Verschiebebewegung eine Strömungsverbindung zwischen einern Innenraum des Gehäuses und der Leckageöffnung (23) freigebbar bzw. abtrennbar ist. Um den Rückflussverhinderer derart weiterzubilden, dass eine unzulässige Druckerhöhung im Bereich der Auslassöffnung (19) auf konstruktiv einfache Weise vermieden werden kann, wird erfindungsgemäss vorgeschlagen, dass das zweite Rückschlagventil (74) unter Aufrechterhaltung einer Verschiebbarkeit des ersten Rückschlagventiles (54) verschiebbar im Gehäuse gehalten ist.
PCT/EP2004/008416 2003-07-28 2004-07-28 Rückflussverhinderer Ceased WO2005012654A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK04763544T DK1649113T3 (da) 2003-07-28 2004-07-28 Tilbageströmsforhindrer
EP04763544A EP1649113B1 (de) 2003-07-28 2004-07-28 Rückflussverhinderer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10335379.8 2003-07-28
DE10335379A DE10335379B9 (de) 2003-07-28 2003-07-28 Rückflußverhinderer

Publications (2)

Publication Number Publication Date
WO2005012654A2 WO2005012654A2 (de) 2005-02-10
WO2005012654A3 true WO2005012654A3 (de) 2005-04-14

Family

ID=33395083

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/008416 Ceased WO2005012654A2 (de) 2003-07-28 2004-07-28 Rückflussverhinderer

Country Status (8)

Country Link
EP (1) EP1649113B1 (de)
CN (1) CN100478530C (de)
AT (1) ATE386171T1 (de)
DE (1) DE10335379B9 (de)
DK (1) DK1649113T3 (de)
ES (1) ES2298797T3 (de)
PT (1) PT1649113E (de)
WO (1) WO2005012654A2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335379B9 (de) * 2003-07-28 2005-03-24 Alfred Kärcher Gmbh & Co. Kg Rückflußverhinderer
DE102005021657A1 (de) * 2005-05-06 2006-11-23 H. Lüdi + Co. AG Gas- und Energiesysteme Laborarmatur zum Ableiten eines strömenden flüssigen Mediums
DE102005031422C5 (de) 2005-07-04 2012-09-27 Hans Sasserath & Co. Kg Systemtrenner
DE102005062517B3 (de) * 2005-12-15 2007-05-31 Alfred Kärcher Gmbh & Co. Kg Rückflussverhinderer
DE102005062518A1 (de) * 2005-12-15 2007-06-21 Alfred Kärcher Gmbh & Co. Kg Rückflussverhinderer
US20070204917A1 (en) * 2006-03-01 2007-09-06 Rain Bird Corporation Backflow prevention device
GB0709906D0 (en) * 2007-05-23 2007-07-04 Anson Ltd Valves
CN101749461B (zh) * 2008-12-15 2011-06-08 刘永 无须外配导管的丝扣型倒流防止器
CN102252116B (zh) * 2011-07-18 2013-03-20 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
CN102287555B (zh) * 2011-07-18 2012-12-26 浙江盾安阀门有限公司 一种内置排水式减压型倒流防止器
CN210141348U (zh) 2019-03-20 2020-03-13 苏州天健云康信息科技有限公司 一种分体式微阀和微流体器件
CN106310512A (zh) * 2016-09-22 2017-01-11 苏州天健云康信息科技有限公司 一种分体式微阀
CN108869761B (zh) * 2018-09-17 2024-03-15 东莞珀力伟动力科技有限公司 一种油泵的静音改进控制阀
CN119222222B (zh) * 2024-12-04 2025-03-18 成都科莫流体技术有限公司 一种具有反流检测和防反流功能的单向阀

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2424978A1 (de) * 1974-05-22 1975-12-04 Braukmann Armaturen Rohrunterbrecher, insbesondere fuer hauswasserleitungen
EP1350896A2 (de) * 2002-04-03 2003-10-08 Hans Sasserath & Co Kg Ventilanordnung für einen Rohrtrenner
DE10335380B3 (de) * 2003-07-28 2004-11-25 Alfred Kärcher Gmbh & Co. Kg Rückflußverhinderer
DE10335379B3 (de) * 2003-07-28 2004-11-25 Alfred Kärcher Gmbh & Co. Kg Rückflußverhinderer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4323496C2 (de) * 1993-07-14 2002-08-01 Grohe Armaturen Friedrich Umschaltventilanordnung
JP3162037B2 (ja) * 1999-06-29 2001-04-25 兼工業株式会社 逆流防止装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2424978A1 (de) * 1974-05-22 1975-12-04 Braukmann Armaturen Rohrunterbrecher, insbesondere fuer hauswasserleitungen
EP1350896A2 (de) * 2002-04-03 2003-10-08 Hans Sasserath & Co Kg Ventilanordnung für einen Rohrtrenner
DE10335380B3 (de) * 2003-07-28 2004-11-25 Alfred Kärcher Gmbh & Co. Kg Rückflußverhinderer
DE10335379B3 (de) * 2003-07-28 2004-11-25 Alfred Kärcher Gmbh & Co. Kg Rückflußverhinderer

Also Published As

Publication number Publication date
EP1649113A2 (de) 2006-04-26
EP1649113B1 (de) 2008-02-13
ATE386171T1 (de) 2008-03-15
ES2298797T3 (es) 2008-05-16
DK1649113T3 (da) 2008-03-31
DE10335379B3 (de) 2004-11-25
CN100478530C (zh) 2009-04-15
DE10335379B9 (de) 2005-03-24
PT1649113E (pt) 2008-03-07
WO2005012654A2 (de) 2005-02-10
CN1813110A (zh) 2006-08-02

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