EP0761891A1 - Sicherheitsvorrichtung zum Einschalten zwischen eine Trinkwasserleitung und die Anschlussleitung eines Verbrauchergerätes - Google Patents

Sicherheitsvorrichtung zum Einschalten zwischen eine Trinkwasserleitung und die Anschlussleitung eines Verbrauchergerätes Download PDF

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Publication number
EP0761891A1
EP0761891A1 EP96490032A EP96490032A EP0761891A1 EP 0761891 A1 EP0761891 A1 EP 0761891A1 EP 96490032 A EP96490032 A EP 96490032A EP 96490032 A EP96490032 A EP 96490032A EP 0761891 A1 EP0761891 A1 EP 0761891A1
Authority
EP
European Patent Office
Prior art keywords
backflow preventer
valve
safety
safety valve
sleeve
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.)
Withdrawn
Application number
EP96490032A
Other languages
English (en)
French (fr)
Inventor
Philippe Gourdin
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.)
HAUDIQUER DEVELOPPEMENT SARL
Original Assignee
HAUDIQUER DEVELOPPEMENT SARL
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 HAUDIQUER DEVELOPPEMENT SARL filed Critical HAUDIQUER DEVELOPPEMENT SARL
Publication of EP0761891A1 publication Critical patent/EP0761891A1/de
Withdrawn legal-status Critical Current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
    • E03C1/106—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using two or more check valves

Definitions

  • the invention relates to a safety device intended to be inserted between the pipe of a drinking water distribution network and the supply pipe of a water user device, such as a boiler.
  • Such a boiler and the network of radiators connected to it form a normally closed circuit in which the heating water can contain products which are liable to be dangerous for humans.
  • this closed circuit To compensate for losses, for example following purges and / or evaporation, this closed circuit must be replenished periodically.
  • the upstream and downstream sleeves each carry at their free end a fraction of a connection means with that of the corresponding upstream or downstream pipes.
  • these connecting means can be of any known type, such as screw-nut systems in which sealing rings are provided.
  • the most recent safety standards also require installers of appliances, for example boilers, to add to these backflow preventers at least one isolation valve and, preferably, two isolation valves, one upstream and the other downstream of the backflow preventer.
  • the installer must first study each supply circuit of the appliance such as the boiler he wishes to install.
  • each installer uses, for supply reasons, a particular type of valve.
  • the installer may also have to use another type of tap, which, generally, it requires him to modify the surrounding pipes to take into account the size of the new valve, thus generating an unnecessary installation time and / or a risk of incorrect adjustment or reassembly.
  • valves upstream and downstream of the backflow preventer increase the connections and therefore the risks of leaks and increase the installation times.
  • These boilers must also be equipped with a safety valve which, when the temperature controls of the hot water circuit are faulty, evacuates a certain amount of water when the pressure inside the hot water circuit reaches a predetermined threshold.
  • a device comprising an isolation valve placed upstream of an assembly comprising a non-return valve and a so-called vacuum breaker valve each mounted on a separate sleeve.
  • valve is open.
  • the isolating valve is only placed in the closed position to carry out maintenance on the safety elements.
  • One of the results which the invention aims to obtain is a safety device of the type mentioned above which is easier to set up whether in new or existing installations and which reduces the potential for leakage inherent in the connections.
  • the invention relates to such a backflow preventer in particular CHARACTERIZED in that, on the one hand, instead of the safety valve being independent of the backflow preventer, one of the sleeves of the backflow preventer directly locally the body intended to house the safety valve and, on the other hand, the discharge pipe of the backflow preventer is connected to the discharge pipe of the safety valve by an intercommunication channel itself housed in the body of the backflow preventer substantially parallel to the axis thereof, so that this safety valve is integrated into the body of the backflow preventer.
  • At least one stop valve 12 is added to this backflow preventer, at least one stop valve 12 and, preferably, two stop valves, each for isolating the backflow preventer from one of the upstream and downstream pipes.
  • a safety valve 20 interposed between the backflow preventer 7 and the heating circuit, which safety valve 20 also being connected to a discharge line 30.
  • one of the sleeves 9, 10 of the backflow preventer produces directly locally the body intended to house the safety valve 20 and, on the other hand, the discharge pipe 8 of the backflow preventer is connected to the discharge pipe 30 of the safety valve by an intercommunication channel 31 itself housed in the body of the backflow preventer substantially parallel to the axis thereof, so that this safety valve is integrated in the body of the backflow preventer.
  • the body of the safety device housing the backflow preventer and the safety valve also constitutes the body of at least one shut-off valve.
  • a stop valve is provided upstream of the disconnector and / or between the disconnector and the safety valve a second stop valve.
  • the stop valve placed between the backflow preventer 7 and safety valve 20 is preferably a ball valve and the valve preferably incorporates in its passage a non-return valve.
  • the sleeve 10 connecting the safety device with the heating circuit is connected substantially perpendicular to the longitudinal axis of the body of the backflow preventer and the discharge pipe 30 of the safety valve 20 extends substantially parallel to the axis of this sleeve and the chamber housing the valve and this sleeve are separated at least locally by a common wall 32 which is crossed by a passage 40 having a seat for the valve shutter, the l the axis of movement is substantially parallel to the axis of the body of the backflow preventer.
  • the safety valve has an operating means 60 making it possible to deliberately move the shutter away from its seat.
  • the intercommunication channel extending between the shutter and the discharge pipe will have its longitudinal axis slightly inclined to promote flow.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Domestic Plumbing Installations (AREA)
  • Check Valves (AREA)
EP96490032A 1995-09-12 1996-08-07 Sicherheitsvorrichtung zum Einschalten zwischen eine Trinkwasserleitung und die Anschlussleitung eines Verbrauchergerätes Withdrawn EP0761891A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9510878 1995-09-12
FR9510878A FR2738611B1 (fr) 1995-09-12 1995-09-12 Dispositif de securite destine a s'intercaler entre la conduite d'un reseau de distribution d'eau potable et la conduite d'alimentation d'un appareil utilisateur d'eau

Publications (1)

Publication Number Publication Date
EP0761891A1 true EP0761891A1 (de) 1997-03-12

Family

ID=9482624

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96490032A Withdrawn EP0761891A1 (de) 1995-09-12 1996-08-07 Sicherheitsvorrichtung zum Einschalten zwischen eine Trinkwasserleitung und die Anschlussleitung eines Verbrauchergerätes

Country Status (2)

Country Link
EP (1) EP0761891A1 (de)
FR (1) FR2738611B1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR757523A (fr) * 1932-09-27 1933-12-28 Kula Freres Soc Dispositif anti-retour d'eau
FR2427532A1 (fr) * 1978-05-30 1979-12-28 Watts Regulator Co Dispositif anti-reflux
US4190071A (en) * 1977-09-12 1980-02-26 International Telephone And Telegraph Corporation Backflow prevention devices
GB2179121A (en) * 1985-08-17 1987-02-25 Wigley Albert F A non-return and/or anti- vacuum spring loaded valve assembly
FR2620785A1 (fr) * 1987-09-22 1989-03-24 Haudiquer Sa Organe de controle de l'ecoulement d'un fluide constituant au moins un clapet anti-retour
DE4101114C1 (de) * 1991-01-16 1992-06-04 Gruenbeck Wasseraufbereitung Gmbh, 8884 Hoechstaedt, De
EP0671515A1 (de) * 1994-03-10 1995-09-13 S.A. Haudiquer Industrie Sicherheitsvorrichtung zum Einbauen zwischen einer Leitung eines Trikwasserleitungnetzes und einer Versorgungsleitung eines Verbrauchergeräts, wie ein Heizkessel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR757523A (fr) * 1932-09-27 1933-12-28 Kula Freres Soc Dispositif anti-retour d'eau
US4190071A (en) * 1977-09-12 1980-02-26 International Telephone And Telegraph Corporation Backflow prevention devices
FR2427532A1 (fr) * 1978-05-30 1979-12-28 Watts Regulator Co Dispositif anti-reflux
GB2179121A (en) * 1985-08-17 1987-02-25 Wigley Albert F A non-return and/or anti- vacuum spring loaded valve assembly
FR2620785A1 (fr) * 1987-09-22 1989-03-24 Haudiquer Sa Organe de controle de l'ecoulement d'un fluide constituant au moins un clapet anti-retour
DE4101114C1 (de) * 1991-01-16 1992-06-04 Gruenbeck Wasseraufbereitung Gmbh, 8884 Hoechstaedt, De
EP0671515A1 (de) * 1994-03-10 1995-09-13 S.A. Haudiquer Industrie Sicherheitsvorrichtung zum Einbauen zwischen einer Leitung eines Trikwasserleitungnetzes und einer Versorgungsleitung eines Verbrauchergeräts, wie ein Heizkessel

Also Published As

Publication number Publication date
FR2738611B1 (fr) 1997-11-07
FR2738611A1 (fr) 1997-03-14

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