EP0390248A1 - Vorrichtung gegen das Rücksaugen für hydraulische Einsatzhähne mit flachen Scheiben zur Stromsteuerung - Google Patents

Vorrichtung gegen das Rücksaugen für hydraulische Einsatzhähne mit flachen Scheiben zur Stromsteuerung Download PDF

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Publication number
EP0390248A1
EP0390248A1 EP19900200617 EP90200617A EP0390248A1 EP 0390248 A1 EP0390248 A1 EP 0390248A1 EP 19900200617 EP19900200617 EP 19900200617 EP 90200617 A EP90200617 A EP 90200617A EP 0390248 A1 EP0390248 A1 EP 0390248A1
Authority
EP
European Patent Office
Prior art keywords
valve
tap
cover
cartridge
elastic lip
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.)
Granted
Application number
EP19900200617
Other languages
English (en)
French (fr)
Other versions
EP0390248B1 (de
Inventor
Alfons Dr. Knapp
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.)
Gevipi AG
Original Assignee
Gevipi AG
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 Gevipi AG filed Critical Gevipi AG
Publication of EP0390248A1 publication Critical patent/EP0390248A1/de
Application granted granted Critical
Publication of EP0390248B1 publication Critical patent/EP0390248B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E03C1/104—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using a single check valve
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
    • Y10T137/3185—Air vent in liquid flow line
    • Y10T137/3294—Valved
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
    • Y10T137/3185—Air vent in liquid flow line
    • Y10T137/3294—Valved
    • Y10T137/3331—With co-acting valve in liquid flow path
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7504—Removable valve head and seat unit
    • Y10T137/7668—Retained by bonnet or closure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86549—Selective reciprocation or rotation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86815—Multiple inlet with single outlet

Definitions

  • the invention relates to a device for preventing aspiration by siphon effect (siphoning) in hydraulic taps provided with a cartridge comprising flow control members in the form of flat plates of hard material.
  • the object of the present invention is to provide a hydraulic valve intended to receive a cartridge comprising flow control members in the form of flat plates made of hard material, which valve must itself include a valve. ventilation independent of the cartridge.
  • An accessory object of the invention is to provide a tap having the above-mentioned characteristic which, in addition, must be capable of accepting a normal cartridge, as it is usually inserted in taps devoid of a ventilation valve. .
  • Yet another object of the invention is to achieve the above-mentioned aims by a minimum increase in the cost price.
  • a tap hydraulic arranged to receive a cartridge comprising flow control members in the form of flat plates of hard material, and comprising a valve body and a removable cover, characterized in that ambient air inlet passages are arranged in correspondence of the valve cover, and that a one-way valve with elastic lip is installed inside the cover between an exterior region of the valve, communicating by said inlet passages with ambient air, and an interior region of the valve, communicating with the flow outlet of the tap, this unidirectional valve with elastic lip being arranged in a direction such that it remains closed in a sealed manner as long as the pressure in said interior region of the tap is not more reduced than the pressure atmospheric prevailing in said outside region of the valve, and that it opens automatically when the pressure in the interior region of the valve inet is reduced, even in minimal measure, below atmospheric pressure.
  • the one-way valve with elastic lip remains closed.
  • the pressure in the interior region of the tap becomes higher than atmospheric pressure, and the one-way valve with elastic lip is kept tightly closed by this pressure, thus avoiding any loss of water through said entry passages.
  • the non-return valve with elastic lip opens automatically, thus allowing the entry of air through said inlet passages and to the interior region of the valve, which is in communication with the flow outlet. In correspondence of this exit, therefore, it can never establish an appreciable depression, and that surely prevents any phenomenon of siphoning.
  • the principle of the invention can be implemented constructively in different modes, either with regard to the arrangement of the inlet passages, or with regard to the arrangement of the one-way valve with elastic lip and the organ which acts as a valve seat.
  • a first possibility is to produce these passages by means of openings made for this purpose in the cover itself.
  • a second possibility is to produce these passages in the form of channels formed partly in the opening of the cover intended for its coupling with the contained cartridge, and partly in the external region of the cartridge itself.
  • a third possibility is to make these passages by means of channels formed only in the opening of the cover intended for its coupling with the cartridge.
  • a fourth possibility is to make these passages only in the external region of the cartridge.
  • the one-way valve with elastic lip it can be installed between the valve cover and the contained cartridge, or between the cover and the valve body.
  • the elastic body constituting the valve with elastic lip can also act as a seal which, in any case, should be interposed between the cover and the valve body.
  • this member may be constituted by an internal surface of the cover, or else by an internal surface of the body of the tap, or even by a part of the cartridge having the shape of a bead.
  • the tap schematically includes a hollow body 1 and a cover 6, screwed onto the body 1 by means of a thread 3.
  • a seal 2 is interposed between the body 1 and the cover 6.
  • a cartridge is introduced, of which there is a casing 11 crossed by flow openings 12, a bead portion 13 and an upper portion 14 from which an operating member 15 projects.
  • the parts 14 and 15 of the cartridge pass through a central opening in the cover 6.
  • the inlet passages consist of openings 7 formed through the cover 6. Between an annular region of the latter and the bead portion 13 of the internal cartridge is disposed an annular body 9 of elastic material , from which protrudes outward an elastic lip 10 which extends beyond the openings 7 and bears against the internal surface of the cover 6, which acts as a valve seat.
  • the elastic lip 10 therefore divides the internal space of the valve body 1 into an interior region 4, which is in communication with the flow openings 12 of the cartridge (as well as with any flow passage not shown, constituting the outlet of the tap), and an external region 5, which is in communication with the ambient air through the openings 7 of the cover 6.
  • the elastic lip 10 remains pressed against the sur inner face of the cover 6.
  • the pressure in the interior region 4 becomes higher than atmospheric pressure, due to the resistances opposed to the flow downstream of the tap, and this pressure pushes strongly the elastic lip 10 against the cover 6, thus preventing any outflow of water through the passages 7.
  • the pressure in the interior region 4 becomes (in a minimum measure) more reduced than atmospheric pressure.
  • the latter by acting in the outer region 5 against the elastic lip 10, raises the latter from the inner surface of the cover 6. Then the ambient air can freely enter the inner region 4 of the valve body, compensating for the depression which tended to establish itself, so that it cannot assume appreciable values. Any siphoning phenomenon is thus prevented.
  • the elastic body 9 with the lip 10 therefore acts as a one-way valve preventing siphoning.
  • the elastic body 9 of the one-way valve with elastic lip acts as a spacer to hold the cartridge 11-15 in position in the body 1 of the valve, but it does not have the function of establishing the sealing between the valve body and the cover.
  • FIG. 1 also shows, as a modification, as in an alternative form, the elastic lip 10 ′ of the one-way valve could be shaped.
  • the lip 10 'bears in a sealed manner, not against the internal surface of the cover 6, but against the internal surface of the body 1 of the valve, which in this case acts as a valve seat.
  • the different parts of the tap, of the cartridge and of the one-way valve, which correspond to parts according to FIG. 1, are indicated by the same reference numbers increased by 20 units; they will not be described later.
  • the cartridge bears directly against the cover 26, and the annular body 29 of the one-way valve is clamped between the body 21 and the cover 26. In this way it acts as a seal between said parts, and consequently there is no
  • the lining 2 according to FIG. 1 has not been provided for any more. Apart from this, the operation which is obtained is identical at all to that which has been described with respect to the embodiment according to FIG. 1.
  • the different parts of the tap, of the cartridge and of the one-way valve, which correspond to parts according to FIG. 1, are indicated by the same reference numbers increased by 40 units; they will not be described later.
  • the annular body 49 of the one-way valve is clamped between the body 41 and the cover 46 and it acts as a seal between these parts.
  • the lip 50 of the unidirectional valve is directed towards the bead portion 53 of the cartridge, which, in this case, acts as a valve seat.
  • the inlet passages could also be constituted by openings formed through the cover 46, as in the previous cases, but here they can also be constituted by channels 56 formed in the external part 54 of the cartridge and by corresponding channels formed in an internal flange 48 of the cover 46, serving as a shoulder for the cartridge. Apart from that, the behavior which one obtains is still identical to that which has been described in connection with the embodiment according to FIG. 1.
  • channels constituting inlet passages 76 ′ could also be provided only in the external region of the cartridge. In this case it would not be necessary to provide channels in the flange 68 of the cover 66, forming a shoulder.
  • FIG. 5 corresponds to the diagram according to FIG. 1, but here we see that the internal surface of the cover 86, acting as a valve seat, can also be the cylindrical internal surface of the cover, instead of its surface internal plate as in FIG. 1.
  • the lever operating member 95 is coupled to an articulation ball 96 fitted between the upper part 94 of the cartridge, acting as an upper semi-cushion. , and a lower semi-cushion 99 forming part of the housing 91.
  • a seal 98 is inserted between these parts.
  • the internal end 97 of the operating member engages a slide 100, guided in the cartridge by a guide ring 101, and coupled with a movable flow control plate 102 made of hard material.
  • the latter can slide in sealing contact with a fixed flow control plate 103 of hard material, mounted in a bottom 104 of the housing 91 of the cartridge.
  • the bottom 104 of the cartridge is coupled by means of projections 105 with seats at the bottom of the body 81 of the valve, to which the supply pipes 106 arrive.
  • the number 107 designates a possible arrangement of the flow conduit, which on the other hand can be also provided in any other position, according to the installation requirements.
  • the operation of a tap and of a cartridge like those which have been described is well known and does not require to be described in detail.
  • the interior region 84 of the valve body is in communication with the flow conduit 107 and it receives the water, which has been mixed in the cartridge, through the openings 93 of the housing 91 of the cartridge.
  • This interior region extends, through the gap between the housing 91 of the cartridge and the body 81 of the valve, to the one-way valve 89-90 which, under normal conditions, separates the interior region 84 from the exterior region 85
  • the latter is in communication, through the openings 87 of the cover 86, with the ambient air.
  • the lip 90 of the one-way valve rises from the internal cylindrical wall of the cover 84.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)
  • Valve Housings (AREA)
  • Multiple-Way Valves (AREA)
  • Domestic Plumbing Installations (AREA)
EP19900200617 1989-03-29 1990-03-16 Vorrichtung gegen das Rücksaugen für hydraulische Einsatzhähne mit flachen Scheiben zur Stromsteuerung Expired - Lifetime EP0390248B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6721689A IT1232057B (it) 1989-03-29 1989-03-29 Dispositivo contro il sifonamento, per rubinetti idraulici a cartucciacon piastre piane di controllo del flusso
IT6721689 1989-03-29

Publications (2)

Publication Number Publication Date
EP0390248A1 true EP0390248A1 (de) 1990-10-03
EP0390248B1 EP0390248B1 (de) 1993-12-01

Family

ID=11300568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900200617 Expired - Lifetime EP0390248B1 (de) 1989-03-29 1990-03-16 Vorrichtung gegen das Rücksaugen für hydraulische Einsatzhähne mit flachen Scheiben zur Stromsteuerung

Country Status (9)

Country Link
US (1) US4969483A (de)
EP (1) EP0390248B1 (de)
CA (1) CA2013260C (de)
DE (1) DE69004841T2 (de)
DK (1) DK0390248T3 (de)
ES (1) ES2047819T3 (de)
FI (1) FI95073C (de)
IT (1) IT1232057B (de)
TR (1) TR25105A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090062A (en) * 1989-12-13 1992-02-25 Kwc Ag Sanitary fitting
US5095554A (en) * 1990-05-08 1992-03-17 Kwc Ag Sanitary fitting

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5329957A (en) * 1991-08-28 1994-07-19 Emhart Inc. Fluid flow system vacuum breaker
US5279324A (en) * 1992-11-20 1994-01-18 Kwc Ag Anti-siphoning valve assembly and plumbing fixture including same
US5575424A (en) * 1994-10-20 1996-11-19 Kohler Co. Vacuum breaker for faucets
US5462079A (en) * 1994-12-05 1995-10-31 Moen Incorporated Anti-siphon mixing valve
US5839464A (en) * 1997-01-09 1998-11-24 Emhart Inc. Cartridge valve with vacuum breaker
US6125875A (en) * 1999-03-08 2000-10-03 Moen Incorporated Pullout faucet value body with integral vacuum breaker hub
DE10164050A1 (de) * 2001-12-19 2003-07-03 Hansgrohe Ag Sanitärventil
CN101646891B (zh) 2007-01-31 2011-06-22 莫恩股份有限公司 具有用于安装的低接触点的阀芯
WO2008095102A1 (en) * 2007-01-31 2008-08-07 Moen Incorporated Valve cartridge insensitive to installation load
US8109293B2 (en) * 2007-01-31 2012-02-07 Moen Incorporated Valve cartridge with isolated friction and cartridge loads
US20110253067A1 (en) * 2010-04-16 2011-10-20 Joseph Vetter Pipe fitting

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211212A (en) * 1939-09-14 1940-08-13 Jesse D Langdon Siphon breaker and valve
US2629393A (en) * 1949-05-05 1953-02-24 Jesse D Langdon Combined check valve and vent valve
EP0091703A1 (de) * 1982-04-09 1983-10-19 Gevipi A.G. Mischventil mit Steuerscheibeneinsatz aus hartem Material
WO1987003665A1 (en) * 1985-12-05 1987-06-18 Masco Corporation Faucet valve with anti-siphon back flow preventer
US4726390A (en) * 1986-03-26 1988-02-23 Waltec, Inc. Hose bibb vacuum breaker

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172426A (en) * 1961-08-01 1965-03-09 George S Cole Proportioning valve
US4508136A (en) * 1982-09-29 1985-04-02 Kah Jr Carl L C Anti-syphon flow control valve
US4876006A (en) * 1985-10-08 1989-10-24 Ebara Corporation Hollow fiber filter device
DE3603503A1 (de) * 1986-02-05 1987-08-06 Grohe Armaturen Friedrich Mischbatterie mit schlauchbrausenauslauf

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211212A (en) * 1939-09-14 1940-08-13 Jesse D Langdon Siphon breaker and valve
US2629393A (en) * 1949-05-05 1953-02-24 Jesse D Langdon Combined check valve and vent valve
EP0091703A1 (de) * 1982-04-09 1983-10-19 Gevipi A.G. Mischventil mit Steuerscheibeneinsatz aus hartem Material
WO1987003665A1 (en) * 1985-12-05 1987-06-18 Masco Corporation Faucet valve with anti-siphon back flow preventer
US4726390A (en) * 1986-03-26 1988-02-23 Waltec, Inc. Hose bibb vacuum breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090062A (en) * 1989-12-13 1992-02-25 Kwc Ag Sanitary fitting
US5095554A (en) * 1990-05-08 1992-03-17 Kwc Ag Sanitary fitting

Also Published As

Publication number Publication date
CA2013260C (en) 1999-02-02
IT1232057B (it) 1992-01-23
FI95073C (fi) 1995-12-11
DE69004841T2 (de) 1994-06-16
FI95073B (fi) 1995-08-31
EP0390248B1 (de) 1993-12-01
ES2047819T3 (es) 1994-03-01
DK0390248T3 (da) 1994-03-21
US4969483A (en) 1990-11-13
CA2013260A1 (en) 1990-09-29
FI901540A0 (fi) 1990-03-28
DE69004841D1 (de) 1994-01-13
TR25105A (tr) 1992-11-01
IT8967216A0 (it) 1989-03-29

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