EP3101183A1 - Système de tuyauterie avec lance d'arrosage - Google Patents

Système de tuyauterie avec lance d'arrosage Download PDF

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Publication number
EP3101183A1
EP3101183A1 EP16157469.4A EP16157469A EP3101183A1 EP 3101183 A1 EP3101183 A1 EP 3101183A1 EP 16157469 A EP16157469 A EP 16157469A EP 3101183 A1 EP3101183 A1 EP 3101183A1
Authority
EP
European Patent Office
Prior art keywords
dead water
pressure
pressure part
pipe
flushing pipe
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Withdrawn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
EP16157469.4A
Other languages
German (de)
English (en)
Inventor
Norbert Schütz
Lothar Schütz
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.)
Norbert Schuetz & Co KG GmbH
Original Assignee
Norbert Schuetz & Co KG GmbH
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 Norbert Schuetz & Co KG GmbH filed Critical Norbert Schuetz & Co KG GmbH
Publication of EP3101183A1 publication Critical patent/EP3101183A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/04—Domestic or like local pipe systems
    • E03B7/045—Domestic or like local pipe systems diverting initially cold water in warm water supply
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00—Methods or installations for drawing-off water
    • E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants

Definitions

  • the invention relates to a flushing pipe for generating circulation in dead water areas of piping systems, wherein the flushing pipe has a dead water part and a pressure part.
  • a reliable supply of clean drinking water is essential for any type of human settlement.
  • Clean drinking water is the basis of health and hygiene in food intake and personal hygiene.
  • piping systems that transport fresh drinking water directly to the consumer.
  • Such piping systems have a large number of branches, since as many households as possible should be reached directly.
  • extraction points that are not regularly used. These may be, for example, hydrants, which are used only when needed.
  • these outlets are not in use, there is no circulation of the water in the areas which serve as supply lines to these removal points. The result of this lack of circulation is that the same water in these areas stands still for a very long time.
  • the object of the present invention is therefore to propose a device which prevents the formation of dead water areas in piping systems, in particular of dead water areas in rarely used tapping points.
  • a flushing pipe for generating circulation in dead water areas of piping systems which has a Totiganteil which is arranged substantially parallel to and within a branching off of the main dead water area and which further comprises a pressure part, said pressure part substantially within of the Main line is located and the fluid flow in the main line produces a working pressure in the dead water part, which is different from the fluid pressure in the main line and the dead water area and the pressure difference between working pressure and the fluid pressure in the main line and in Totigan Scheme generates a fluid flow through the flushing pipe.
  • the basic idea of the invention is that a flushing pipe is introduced and installed into a dead water area of a pipeline system, through which fresh fluid is pumped into the stationary fluid area or through which alternatively fluid located in the dead water area is sucked off. Aspiration of fluid from the dead water area then leads to the subsequent flow of fresh fluid into the dead water area.
  • fluid here stands for all liquid or gaseous media.
  • the main application of the invention is the drinking water supply, the fluid is then just formed by drinking water.
  • the invention is by no means limited to water, but can also be used to prevent Totigan Suiteen any other fluid conduit systems.
  • An inventive flushing pipe has an area which is located within the dead water area of the piping system. This area of the flushing pipe is referred to as Totwasserteil.
  • the dead water portion is designed to enable the transport of fluid almost to the closed end of the dead water area of the piping system.
  • the dead water part of a flushing pipe according to the invention is also suitably realized by a cylindrical tube which runs parallel within the dead water region. The end of the dead water part of the flushing pipe is thereby introduced so far into the dead water area that it is ensured that a circulation actually all the way to the closed end takes place and no non-flow areas remain.
  • the dead water portion of the flushing pipe is formed more complex and contains, for example, bends or kinks.
  • the dead water part can have all the geometry which are suitable for generating and maintaining a fluid flow up to the closed end of a dead water area of a pipeline system.
  • the object according to the invention is also achieved by a flushing pipe which serves to convey a fluid and which has a pressure part, an open end and a line piece connecting the pressure part and the open end (fluidically), wherein the flow direction of the fluid in the pressure part is angled, in particular is perpendicular to the flow direction of the fluid in the pipe section.
  • a flushing pipe which serves to convey a fluid and which has a pressure part, an open end and a line piece connecting the pressure part and the open end (fluidically), wherein the flow direction of the fluid in the pressure part is angled, in particular is perpendicular to the flow direction of the fluid in the pipe section.
  • At least part of the flow direction in the pressure part is at an angle, in particular at right angles to the flow direction in the pipe section.
  • a line section as a connection between the pressure part and the open end, which is used interchangeably in the context of the application for the term Totwasserteil.
  • the pressure part is designed to generate an overpressure or underpressure in the line piece / dead water part.
  • various variants are proposed below, but without wishing to limit the invention thereto.
  • a flushing pipe according to the invention has, in addition to the dead water part, a pressure part.
  • This pressure part has the task of generating a working pressure, which in turn sets a fluid flow through the flushing pipe in motion. If this working pressure generated in the pressure part is higher than the ambient pressure in the pipeline system, a fluid flow is generated through the flushing tube into the dead water area. As a result, fluid which is located in the dead water area is displaced and thus causes a circulation in the dead water area.
  • the pressure part of a flushing pipe according to the invention is designed so that it generates a working pressure which is lower than the ambient pressure in the piping system. This lower working pressure then has the consequence that fluid is sucked out of the dead water area through the flushing pipe.
  • the pressure part of a flushing pipe according to the invention is arranged substantially in the main lines. Under the main line is to be understood a line in which there is usually a continuous flow of fluid. Dead water areas are formed by branches (hereinafter also referred to as secondary line) of such main lines. These branches are then closed at the end remote from the main line, whereby no circulation according to the invention by means of such a dead water zone is possible without a flushing pipe according to the invention.
  • the arrangement of the pressure part of a flushing pipe according to the invention in the main line has the Advantage that this pressure part is within a fluid flow.
  • the pressure part is designed to use this fluid flow to generate the working pressure for the flushing pipe.
  • the pressure part of the flushing pipe is formed, for example, as a stagnation or pitot tube, an overpressure is generated there, which generates a fluid flow into the dead water area.
  • the pressure part it is also possible for the pressure part to be designed so that the fluid flow generates a negative pressure there, which in turn results in a sucking out of fluid from the dead water region.
  • all embodiments of the pressure part of the flushing pipe are possible which, caused by the fluid flow in the main line, produce a working pressure which is different from the ambient pressure in the piping system.
  • the pressure part is designed as a substantially parallel to the main line running pitot tube and the pressure part generates a working pressure for the dead water, which is higher than the fluid pressure in the main line and dead water.
  • the pressure part is designed as a pitot tube, which runs substantially parallel to the flow in the main line.
  • the inflowing fluid generates a back pressure in the pressure part, which is greater than the ambient pressure. Due to this higher pressure in the pressure part and thus in the flushing pipe, a fluid flow through the flushing pipe through into the dead water area of the piping system. As a result of this inflow of fluid into the dead water area, fluid is displaced there.
  • a circulation occurs in the dead water area by the addition of fresh fluid with an overpressure through the flushing pipe.
  • the pressure part has a venturi nozzle arranged essentially in the main tube and the pressure part generates a working pressure for the dead water part, which is lower than the fluid pressure in the main line and Totwasser Scheme.
  • this has a Venturi nozzle, which is substantially parallel to the flow in the main line.
  • the flow of the main line enters the front Venturi nozzle, runs through a narrowing cross-section and leaves the nozzle on the other side again.
  • the dead water part of a flushing pipe of this embodiment is arranged substantially perpendicular to the flow direction in the main pipe and is connected in the Venturi nozzle at the position of the narrowest cross section.
  • the open end is formed as an inlet or as an outlet for the fluid flowing in or out of the pipe section / dead water part.
  • the open end serves as an inlet or as an outlet.
  • the flushing pipe carries a mounting plate, which is connectable to the flange of the piping system.
  • the secondary line is connected by a T-piece on the main line.
  • the tee has corresponding flanges, and the flange to which the bypass is connected is part of the piping system and serves to secure the mounting plate that holds the wash tube.
  • flushing pipe according to the invention is offered as a retrofittable insert, which is to be mounted by means of the mounting plate.
  • the mounting plate has a height adjustment for the vertical position of the pressure part and / or a positioning adjustment for the alignment of the pressure part.
  • a positioning adjustment for the alignment of the pressure part are provided on the mounting plate.
  • the longitudinal axis of the pressure part so the flow direction in the inlet region of the pressure member is oriented parallel to the main line. This also ensures that efficient rinsing is guaranteed.
  • the mounting plate thereby has a receptacle in which the line piece is longitudinally displaceable movable and fixable. This defines the altitude.
  • the arrangement is also rotatable and thus alignable. If one uses round cross-sections any adjustment is possible, polygonal tubes and corresponding shots are used, the adjustability is reduced accordingly.
  • the mounting plate is arranged between the pressure part and the open end.
  • the open end between the mounting plate and the pressure member is arranged.
  • the arrangement is chosen so that the pipe section in the upper region, for example, consists of a solid material, and then forms the open end as an opening in the subsequent tube therethrough and the solid material is connected to the mounting plate arranged above.
  • the pressure part is designed as a dam tube whose curved guide surfaces oriented opposite to the pressure part, in particular are arranged symmetrically.
  • the flow direction of the fluid is not clearly defined. This depends on the customers and supply, which fluid streams are being taken or fed to the system.
  • the proposed embodiment ensures that the flushing pipe is always supplied with appropriate fluid from the main line, since a preferred symmetrical configuration is selected in the pressure part, in particular the guide surfaces are set or arranged such that regardless of the flow direction of the fluid in the main line always a flow in the pipe section results when there is a flow in the main line.
  • the printing part can be equipped with symmetrically arranged, substantially identical guide surfaces, but without wishing to limit the invention thereto. The same can be achieved with simple bevels, which also need not be arranged symmetrically.
  • a part of the line section is arranged outside the secondary line delimiting the dead water area.
  • a shut-off valve is provided in the secondary line, and still forms a dead water after the shut-off valve.
  • the led out of the secondary line part of the pipe section bridges the shut-off valve and allows for open shut-off valve effective flushing.
  • shut-off valve is only shortly after the end of the flushing pipe.
  • the pressure part is executed separately from the line area and the flushing pipe is designed as Spülrohran Aunt.
  • the proposal according to the invention is not limited to a one-piece embodiment of the flushing pipe, but also includes a multi-part structure in which, for example, the pressure part is arranged in the main line and the line piece is in the secondary line.
  • the dead water part of the flushing pipe extends at least over half the length of the dead water range, measured from the connection point between main line and dead water area, preferably over at least 2/3 of the length of the dead water area.
  • the flushing pipe is designed so that it extends so deeply into the dead water area of the pipeline system that a circulation arises up to the closed end of the dead water area. If the flushing pipe were to be made too short, a circulation would arise only in part of the dead water area and the remaining part would remain as unwanted dead water. It has been found that the dead water part of a flushing pipe must extend over at least half the length of the dead water area, to start a reliable circulation in the whole area.
  • the invention also encompasses a pipeline system comprising a main line having an at least partially occurring fluid flow and at least one secondary line forming a dead water area adjoining the main line and a flushing pipe, wherein the pressure part of the flushing pipe protrudes into the main line and the open one End of the flushing pipe is arranged in the secondary line.
  • the flushing pipe is designed as described in this application. The thus formed piping system is characterized by the same, initially described advantages.
  • the invention also encompasses the use of a flushing pipe, as described for the at least predominant installation in the dead water area of a pipeline system such that the pressure part of the flushing pipe protrudes into the main line of the pipeline system.
  • the use of the flushing pipe is characterized by the same, initially described advantages.
  • flushing pipe is arranged in the dead water area.
  • the flushing pipe is also suitable for use in a piping system consisting of main and secondary line / dead water.
  • Fig. 1 shows a sketched sectional view through a first embodiment of a flushing pipe 1.
  • the sketch shows a part of a piping system, which is formed by a main line 5 and a branch of this main line 5 at right angles branching line 22.
  • a hydrant 10 can be seen in this case. Since this hydrant 10 is closed most of the time and thus no fluid flows through the secondary line, the secondary line 13 forms a kind of "dead end" or dead water area 4 in the illustrated case by no flow without further devices. A flow through this dead water area 4, which has the length 8, is made possible only by the flushing pipe 1.
  • the flushing pipe 1 is mounted by means of a mounting plate 9 in the secondary line and projects with its dead water part 2 in the dead water area 4 of the piping system.
  • the part of the flushing pipe 1 located at the bottom of the main pipe 5 is referred to as the pressure part 3.
  • this pressure part 3 is designed as a left-oriented pitot tube 6.
  • the flow in the main line 5 flows from left to right, as indicated by arrows 23. This flow thus hits the front of the opening of the pressure tube formed as a piling 6 3.
  • In the pressure part 3 is thus created by the flow from the left a back pressure which leads to a fluid flow into the flushing pipe 1 into it.
  • This fluid flow is represented by small arrows 24 in the purge tube.
  • Fig. 2 shows a sketched sectional view through a second embodiment of a flushing pipe 1.
  • the piping system consisting of the main line 5 and a secondary line 13, which is closed at its end by a hydrant 10, is identical to Fig.1 ,
  • the flushing pipe 1 has one Fig. 1 different printing part 3 on.
  • This pressure part 3 is designed as a Venturi nozzle 7, which along the fluid flow from the left is oriented to the right in the main line 5. Again, the flow in the main line 5 is indicated by large arrows 23.
  • This pressure flow of the Venturi nozzle 7 is indicated by the arrows 27, which are rectified with the arrows 23 of the flow in the main line 5.
  • This flow through the pressure part 3 designed as a Venturi nozzle 7 generates a negative pressure at the lower end of the dead water part 2 of the flushing pipe 1, which is connected directly to the cross-sectional constriction 11 of the printing part 3. This negative pressure causes the fluid to be sucked into the dead water part 2 of the flushing pipe 1 from the side where the hydrant 10 is connected.
  • This flow through the flushing pipe is indicated by small, downwardly pointing arrows 28.
  • the fluid sucked into the flushing pipe 1 leaves the flushing pipe 1 again to the left through the Venturi nozzle 7 or the pressure part 3.
  • Sucking off fluid in the dead water area 4 on the side of the hydrant 10 again leads to a negative pressure which ensures that fresh fluid from the main 5 is sucked directly into the dead water area 4.
  • This flow into the dead water area 4 is shown by small, upwardly pointing arrows 29.
  • the circulation of fluid through the dead water area 4 takes place in this embodiment directly from the main line 5 into the dead water area 4 of the secondary line and through the flushing pipe 1 again from the dead water area 4 out.
  • the pressure part 3 opposite, in the secondary line 22 standing open end 25 serves as an inlet.
  • Fig. 3a, 3b, 3c show a further embodiment of the invention. This embodiment is based on the in Fig. 1 Concept shown with a designed as pitot tube printing part 3 of a flushing pipe. 1
  • Fig. 3a shows an uncut side view of a connected to a main line 5 hydrant 10.
  • the connection between the main line 5 and the hydrant 10 takes place via the secondary line piece thirteenth
  • Fig. 3b shows a front view of this embodiment. In the middle of the opening of the main line 5, the pressure part 3 of a flushing pipe 1 can already be seen here.
  • Fig. 3c shows a sectional side view in the in Fig. 3b specified cutting plane DD.
  • the flushing pipe 1 is now to be seen with its projecting into the secondary line piece 13 dead water part 2 and its arranged in the main line 5 printing part 3.
  • the flushing pipe 1 is fastened here in the mounting plate 9.
  • This mounting plate 9 in turn is installed in the flange connection between the main line 5 and secondary line piece 13.
  • the pressure part 3 of the flushing pipe 1 is designed here as a kind of pitot tube, which generates an overpressure and thus a fluid flow into the flushing pipe 1 inside. Details of the in the Fig. 3a to 3c Views shown can be found in the following figures.
  • Fig. 4a, 4b show details of in Fig. 3a, 3b, 3c shown embodiment in two sectional views.
  • Fig. 4a are a flushing pipe 1 with Totiganteil 2 and pressure part 3 and a mounting plate 9 can be seen.
  • the flushing pipe 1 is fixed here in the middle of the mounting plate 9.
  • a passage opening 14 Directly adjacent to the location of the mounting plate 9, to which the flushing pipe 1 is attached, there is a passage opening 14.
  • This passage opening 14 allows on the one hand a return of fluid from the Totigan Scheme 4 of the secondary line piece 13 back towards the main line 5, which takes place when fresh fluid is forced through the flushing pipe 1 into the dead water area 4.
  • Fig. 4b shows enlarged in Fig. 4a marked area H.
  • the lower end of the dead water part 2 and the pressure part 3 of the flushing pipe 1 can be seen here.
  • the large arrow symbolizes the fluid flow 15 in the main pipe 5, as shown in FIG Fig. 3 is shown.
  • the inflowing fluid in the direction of the arrow is diverted from the arcuate guide surface 16 in the direction of the dead water part 2 of the flushing pipe 1, which leads to an inflow of fluid into the dead water part 2 of the flushing pipe 1.
  • This inflow of fresh fluid from the main line 5 into the flushing pipe 1 is further enhanced by the fact that the inflow surface 17, which is arranged perpendicular to the fluid flow 15, is made significantly larger than the outflow surface 18 formed by the internal cross section of the dead water part 2.
  • the in Fig. 4b shown printing part 3 is symmetrical and has two oppositely acting vanes 16a, 16b. As a result, an overpressure is also generated in the pressure part 3 when the flow in the main line 5 is opposite to the indicated fluid flow 15.
  • Such a flush pipe thus ensures a circulation of fluid in the dead water area 4, no matter in which direction the main line 5 is flowed through.
  • Such an embodiment of the pressure part is also referred to as Staudoppelrohr 30.
  • Fig. 5 shows again a mounting plate 9 for mounting a flushing pipe 1, here in an uncut, perspective view.
  • the Rinse pipe 1 is attached.
  • the flushing pipe is inserted through a bore of the receptacle 19 and clamped with a grub screw 20.
  • a plurality of bolt openings 21 are mounted at regular intervals. These bolt openings 21 allow mounting of the mounting plate 9 between the two halves of the flange of the in Fig. 3 parts shown main line 5 and secondary line piece 13, wherein the bolts of the screw connection between these two pipe parts are guided by the bolt openings 21.
  • Fig. 6 shows in addition several views of in Fig. 3 shown embodiment of a flushing pipe with built-mounting plate.
  • On the left is a side view of a flushing pipe 1 can be seen, which is mounted in a mounting plate 9.
  • a front view of Spülrohr 1 and mounting plate 9 can be seen.
  • Far right in Fig. 6 there is a sectioned side view in the cut plane GG marked in the middle in the view.
  • two bolt openings 21 are shown here.
  • Fig. 7 a further variant of the invention is shown.
  • the main line 5 in turn has a branch into a secondary line 31, which, as already described, forms a dead water area 4.
  • the secondary line 31 shown here connects the hydrant 10 initially over a relatively long, horizontal piece and a subsequent vertical piece.
  • the pipe section 22 is divided into three sections.
  • the first section 22b protrudes into the main line 5 and t projects at its end the pressure part 3. Before the shut-off 32, the line piece 22b is led out of the secondary line 31, this is a small tee or an opening provided.
  • the shut-off valve 32 is, as described, bridged by the line piece 22a, which then opens into the vertically extending region, the line piece 22c is again arranged in the secondary line 31 and has at its upper end the open end 25th
  • Fig. 8 a further detail for the adjustability of the position of the pressure member 3 in the main line 5 is shown.
  • the flushing pipe 1 carries the mounting plate 9 or conversely spoken, the mounting plate 9 of course also carries the flushing pipe first
  • the mounting plate 9 is designed like a ring and forms a passage opening 14 which is traversed by a centrally located receptacle 35.
  • This receptacle 35 has one of the outer contour of the pipe section 22, Totwassermaschines 2 corresponding cross section, here this example is round.
  • the line piece is held and thus also the altitude and the orientation of the pressure member 3 in the main line 5 set.
  • a height adjustment 33 is provided, on the line piece 22, a marking or scaling is provided, which serves to position the pressure part 3 as centrally as possible in the main line 5. This can be realized by appropriate markings or by fixed grid, according to the diameter of the main lines.
  • the pressure part 3 is positioned on the central axis of the main line 5, since here the highest flow rate and thus the largest pressure difference can be used. So that the inlet region of the pressure member 3 is optimally oriented in the flow direction of the fluid in the Hauptleitunhg 5, a positioning is provided. This is cleverly indicated by a rotation, indicated by the double arrow 36 of the pipe section 22 about its longitudinal axis. Altitude and / or orientation is determined by the clamping screw 20 on the receptacle 35.

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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)
  • Sink And Installation For Waste Water (AREA)
  • Cleaning In General (AREA)
EP16157469.4A 2015-02-25 2016-02-25 Système de tuyauterie avec lance d'arrosage Withdrawn EP3101183A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015100923 2015-02-25

Publications (1)

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EP3101183A1 true EP3101183A1 (fr) 2016-12-07

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EP16157469.4A Withdrawn EP3101183A1 (fr) 2015-02-25 2016-02-25 Système de tuyauterie avec lance d'arrosage

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DE (1) DE202016101012U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4108842A1 (fr) * 2021-06-21 2022-12-28 Sol Microtek Ltd Système de chasse d'eau

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8915477U1 (de) * 1989-06-10 1990-11-22 Dürr GmbH, 7000 Stuttgart Reinstwasserversorgungsvorrichtung
DE4403067C1 (de) * 1994-02-02 1995-04-06 Deutsche Aerospace Airbus Vorrichtung zum Eisfreihalten von einseitig offenen Flüssigkeitsleitungen
DE20013555U1 (de) * 2000-07-05 2000-12-07 Jeschke, Immanuel, 31157 Sarstedt Anlage zur stetigen Erneuerung des Trinkwassers in einer von einer Versorgungsleitung abzweigenden Anschlußleitung
US6343622B1 (en) * 2000-03-31 2002-02-05 Flamco B.V. Flow-through connection member for an expansion tank
US20040182451A1 (en) * 2001-03-27 2004-09-23 Poirier Blair J. Potable water circulation system
US20070079880A1 (en) * 2005-10-07 2007-04-12 Karl-Johan Westin Flush adapter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8915477U1 (de) * 1989-06-10 1990-11-22 Dürr GmbH, 7000 Stuttgart Reinstwasserversorgungsvorrichtung
DE4403067C1 (de) * 1994-02-02 1995-04-06 Deutsche Aerospace Airbus Vorrichtung zum Eisfreihalten von einseitig offenen Flüssigkeitsleitungen
US6343622B1 (en) * 2000-03-31 2002-02-05 Flamco B.V. Flow-through connection member for an expansion tank
DE20013555U1 (de) * 2000-07-05 2000-12-07 Jeschke, Immanuel, 31157 Sarstedt Anlage zur stetigen Erneuerung des Trinkwassers in einer von einer Versorgungsleitung abzweigenden Anschlußleitung
US20040182451A1 (en) * 2001-03-27 2004-09-23 Poirier Blair J. Potable water circulation system
US20070079880A1 (en) * 2005-10-07 2007-04-12 Karl-Johan Westin Flush adapter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4108842A1 (fr) * 2021-06-21 2022-12-28 Sol Microtek Ltd Système de chasse d'eau

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