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EP2801672B1 - System separator - Google Patents

System separator Download PDF

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Publication number
EP2801672B1
EP2801672B1 EP13166803.0A EP13166803A EP2801672B1 EP 2801672 B1 EP2801672 B1 EP 2801672B1 EP 13166803 A EP13166803 A EP 13166803A EP 2801672 B1 EP2801672 B1 EP 2801672B1
Authority
EP
European Patent Office
Prior art keywords
housing part
system separator
housing
another
securing
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.)
Active
Application number
EP13166803.0A
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German (de)
French (fr)
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EP2801672A1 (en
Inventor
Pierre Friedrich
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.)
Garrett Motion SARL
Original Assignee
Honeywell Technologies SARL
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Publication date
Application filed by Honeywell Technologies SARL filed Critical Honeywell Technologies SARL
Priority to EP13166803.0A priority Critical patent/EP2801672B1/en
Priority to DE202014001685.2U priority patent/DE202014001685U1/en
Publication of EP2801672A1 publication Critical patent/EP2801672A1/en
Application granted granted Critical
Publication of EP2801672B1 publication Critical patent/EP2801672B1/en
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/10Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/106Devices 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 system separator according to the preamble of claim 1.
  • a system separator is known with a housing, the housing of which defines an inlet chamber, an intermediate chamber and an outlet chamber, wherein the system separator further comprises two positioned in the housing, in the direction of flow of a medium in series, a backflow preventer, namely a first, inlet-side backflow preventer, which between the inlet chamber and the intermediate chamber is connected, and a second outlet-side non-return valve, which is connected between the intermediate chamber and the outlet chamber.
  • the system separator disclosed therein comprises a bleed valve with which the intermediate chamber between the two non-return valves can be vented or discharged, wherein the bleed valve is controlled depending on a differential pressure between the pressure in the inlet chamber and the pressure in the intermediate chamber. Then, when this differential pressure drops below a defined limit, the drain valve opens to vent the intermediate chamber into the atmosphere.
  • U1 is another system separator with an inlet-side backflow preventer connected between an inlet chamber and an intermediate chamber, an outlet-side non-return valve connected between the intermediate chamber and an outlet chamber and having a drain valve
  • the housing of the system separator is formed as a two-part housing, which first, upper housing part and a second, lower housing part comprises.
  • the first housing part of the system separator is the DE 20 2005 020 081 U1 to a first line, in particular to a dedicated line, or to a pre-pressure zone coupled.
  • the second housing part receives the two backflow preventer and serves to connect the system separator to a second line or to a back pressure zone.
  • the two housing parts of the housing of the system separator are screwed together according to this prior art, including the first, upper housing part has a portion with an external thread and the second, lower housing part has a portion with an internal thread, which engage in the screwing. It follows that the two housing parts can be connected together only in a single defined relative position, which is determined by the intermeshing threads.
  • Another system separator is from the DE 20 2009 016 823 U1 known, wherein in this system separator a one-piece housing is provided, and wherein the inlet chamber of the system separator is associated with a shut-off valve, via which the inlet chamber can be separated from a pre-pressure zone.
  • a generic system separator is from the GB 1 374 833 A known.
  • the DE 0 166 203 A2 discloses a fitting for a gas and / or liquid pipe.
  • the EP 2 431 515 A1 discloses a drain hose of a washing machine.
  • the invention is based on the object to provide a novel system separator.
  • the system separator according to the invention has the advantage that the two housing parts can be fixed to each other in any rotational position to each other. For this purpose, adjacent sections of the two housing parts are simply plugged into each other and therefore not screwed together as usual in the prior art, wherein a securing element fixes the two housing parts in any relative rotational position to each other. This is advantageous in the arrangement of the system separator under confined spaces. After releasing the securing element, the two housing parts of the system separator can be pulled apart, in which case the positioned between the nested sections of the two housing parts filter element of the system separator is accessible.
  • the fixation of the two housing parts via the securing element, which at least partially engages in the two circumferential securing grooves of the two nested sections of the two housing parts, is particularly simple and preferred.
  • Fig. 1 to 5 show different views of a first inventive system separator 10, wherein such a system separator 10 comprises a housing 11, which defines an inlet chamber 12, an intermediate chamber 13 and an outlet chamber 14.
  • a plurality of backflow preventers are connected one behind the other in the flow direction of a medium, namely a first backflow preventer 15 between the inlet chamber 12 and the intermediate chamber 13 and a second backflow preventer 16 between the intermediate chamber 13 and the outlet chamber 14.
  • a drain valve 34 is accommodated in the housing 11 which can ventilate the intermediate chamber 13 into the environment depending on a differential pressure between the pressure in the inlet chamber 12 and the pressure in the intermediate chamber 13.
  • the details and the operation of the two backflow preventer 15, 16 and the drain valve 34 are familiar to the person skilled in the art and need no further explanation.
  • the housing 11 of the system separator 10 is designed in several parts, wherein a first housing part 17 of the connection of the system separator 10, namely the inlet chamber 12 thereof, to a first line or to a pre-pressure zone, and wherein the second housing part 18, preferably both backflow preventer 15, 16 as well as the drain valve 34 receives and the connection of the system separator 10, namely the outlet chamber 14 thereof, to a second line or to a back pressure zone is used.
  • the first housing part 17 has a flange 19 with an external thread 20 for screwing the system separator 11 to the first line or the pre-compression zone
  • the second housing part 18 has a flange 21 with an external thread 22 to the system separator 11 to the second line or to connect the back pressure zone.
  • a filter element 26 is positioned between the nested sections 23 and 24 of the two housing parts 17, 18, a filter element 26 is positioned. After loosening the securing element 25 and pulling the two housing parts 17, 18, the filter element 26 is easily accessible, for example, for maintenance or replacement of the filter element 26 and that without the housing parts 17, 18 of the lines or of the pre-pressure zone and the Back pressure zone must be dismantled.
  • the nested sections 23 and 24 of the two housing parts 17, 18 of the housing 11 of the system separator 10 each have a circumferential securing groove 27 and 28, respectively. Then, when the two sections 23, 24 of the two housing parts 17, 18 are inserted into each other, the two securing grooves 27 and 28 concentrically surround each other, wherein the securing element 25 for fixing the two housing parts 17, 18 to each other by both concentrically enclosing and circumferential securing grooves 27, 28 extends in sections.
  • the portion 24 of the second, lower housing part 18 is inserted into the portion 23 of the first, upper housing part 17, wherein when the two sections 23, 24 of the two housing parts 17, 18 are inserted into each other, the securing groove 27 of Section 23 of the first, upper housing part 17 radially outward and the securing groove 28 of the second, lower housing part 18 is positioned radially inward, so that accordingly the securing groove 27 of the upper housing part 17 and the section 23 thereof the securing groove 28 of the lower housing part 18 and of the section 24 of the same radially outwardly concentrically surrounds.
  • the wall 29, which has the recesses 30 for the passage of the securing element 25 and which separates the two securing grooves 27, 28, from the portion 23 of the first, upper housing part 17 is then provided.
  • the securing element is designed as a U-shaped bracket, wherein mutually parallel webs 35 of this clip extending through the recesses 30 in the wall 29, so that these parallel webs 35 of the securing element 25 in sections by both circumferential securing grooves 27th , 28 extend.
  • the recesses 30 are in such a way in which the two securing grooves 27, 28 separating wall 29 introduced that the parallel webs 35 of the clip-like securing element 25 which extend through these recesses 30, the portion 24 of the lower housing part 18 of the housing 11 in itself comprise approximately diametrically opposite positions.
  • a check valve 31 is integrated into the first, upper housing part 17 of the housing 11.
  • the pre-pressure zone can be separated from the inlet chamber 12 of the system separator 11 via the shut-off valve 31.
  • the lower housing part 18 can then be separated from the upper housing part 17 and the filter element 26 can be accessed by removing the securing element 25 without the risk of medium escaping from the pre-compression zone.
  • the integration of the check valve 31 in the first, upper housing part 17 of the housing 11 of the system separator 10 is preferred, it is also possible, the first upper housing part 17 exclusively for connecting the system separator 11 to a line or to a pre-pressure zone or at to use a separate shut-off valve.
  • the first, upper housing part 17 exclusively provides the connection function for connecting the system separator 10 to a line or to a shut-off valve.
  • a sealing ring seal member 32 is inserted into a groove 33 of the portion 24 of the lower housing part 18, wherein in the nested state of the two housing parts 17, 18, this groove 33, which receives the sealing member 32, axially spaced from the concentrically surrounded locking grooves 27, 28 ,
  • the second housing part 18 preferably accommodates all components for the actual system separator function, that is, the two backflow preventers 15, 16 and the drain valve 34.

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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)
  • Filtration Of Liquid (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Description

Die Erfindung betrifft einen Systemtrenner nach dem Oberbegriff des Anspruchs 1.The invention relates to a system separator according to the preamble of claim 1.

Aus der DE 42 04 386 C2 ist ein Systemtrenner mit einem Gehäuse bekannt, dessen Gehäuse eine Einlasskammer, eine Zwischenkammer und eine Auslasskammer definiert, wobei der Systemtrenner weiterhin zwei in dem Gehäuse positionierte, in Durchflussrichtung eines Medium hintereinander geschaltete Rückflussverhinderer umfasst, nämlich einen ersten, einlassseitigen Rückflussverhinderer, der zwischen die Einlasskammer und die Zwischenkammer geschaltet ist, und einen zweiten, auslassseitigen Rückflussverhinderer, der zwischen die Zwischenkammer und die Auslasskammer geschaltet ist. Weiterhin umfasst der dort offenbarte Systemtrenner ein Ablassventil, mit welchem die Zwischenkammer zwischen den beiden Rückflussverhinderern belüftet oder entleert werden kann, wobei das Ablassventil abhängig von einem Differenzdruck zwischen dem Druck in der Einlasskammer und dem Druck in der Zwischenkammer gesteuert wird. Dann, wenn dieser Differenzdruck unter einen definierten Grenzwert absinkt, öffnet das Ablassventil, um die Zwischenkammer in die Atmosphäre zu belüften.From the DE 42 04 386 C2 a system separator is known with a housing, the housing of which defines an inlet chamber, an intermediate chamber and an outlet chamber, wherein the system separator further comprises two positioned in the housing, in the direction of flow of a medium in series, a backflow preventer, namely a first, inlet-side backflow preventer, which between the inlet chamber and the intermediate chamber is connected, and a second outlet-side non-return valve, which is connected between the intermediate chamber and the outlet chamber. Furthermore, the system separator disclosed therein comprises a bleed valve with which the intermediate chamber between the two non-return valves can be vented or discharged, wherein the bleed valve is controlled depending on a differential pressure between the pressure in the inlet chamber and the pressure in the intermediate chamber. Then, when this differential pressure drops below a defined limit, the drain valve opens to vent the intermediate chamber into the atmosphere.

Aus der DE 20 2005 020 081 U1 ist ein weiterer Systemtrenner mit einem zwischen eine Einlasskammer und eine Zwischenkammer geschalteten einlassseitigen Rückflussverhinderer, einem zwischen die Zwischenkammer und eine Auslasskammer geschalteten auslassseitigen Rückflussverhinderer und mit einem Ablassventil bekannt, wobei nach diesem Stand der Technik das Gehäuse des Systemtrenners als zweiteiliges Gehäuse ausgebildet ist, welches ein erstes, oberes Gehäuseteil und ein zweites, unteres Gehäuseteil umfasst.From the DE 20 2005 020 081 U1 is another system separator with an inlet-side backflow preventer connected between an inlet chamber and an intermediate chamber, an outlet-side non-return valve connected between the intermediate chamber and an outlet chamber and having a drain valve, according to this prior art, the housing of the system separator is formed as a two-part housing, which first, upper housing part and a second, lower housing part comprises.

Über das erste Gehäuseteil ist der Systemtrenner der DE 20 2005 020 081 U1 an eine erste Leitung, insbesondere an eine Standleitung, bzw. an eine Vordruckzone ankoppelbar. Das zweite Gehäuseteil nimmt die beiden Rückflussverhinderer auf und dient der Anbindung des Systemtrenners an eine zweite Leitung bzw. an eine Hinterdruckzone. Die beiden Gehäuseteile des Gehäuses des Systemtrenners sind nach diesem Stand der Technik miteinander verschraubt, wozu das erste, obere Gehäuseteil einen Abschnitt mit einem Außengewinde und das zweite, untere Gehäuseteil einen Abschnitt mit einem Innengewinde aufweist, die beim Verschrauben ineinandergreifen. Daraus folgt, dass die beiden Gehäuseteile ausschließlich in einer einzigen definierten Relativposition, die durch die ineinander greifenden Gewinde bestimmt wird, miteinander verbunden werden können.About the first housing part of the system separator is the DE 20 2005 020 081 U1 to a first line, in particular to a dedicated line, or to a pre-pressure zone coupled. The second housing part receives the two backflow preventer and serves to connect the system separator to a second line or to a back pressure zone. The two housing parts of the housing of the system separator are screwed together according to this prior art, including the first, upper housing part has a portion with an external thread and the second, lower housing part has a portion with an internal thread, which engage in the screwing. It follows that the two housing parts can be connected together only in a single defined relative position, which is determined by the intermeshing threads.

Ein weiterer Systemtrenner ist aus der DE 20 2009 016 823 U1 bekannt, wobei bei diesem Systemtrenner ein einteiliges Gehäuse vorgesehen ist, und wobei der Einlasskammer des Systemtrenners ein Absperrventil zugeordnet ist, über welches die Einlasskammer von einer Vordruckzone getrennt werden kann.Another system separator is from the DE 20 2009 016 823 U1 known, wherein in this system separator a one-piece housing is provided, and wherein the inlet chamber of the system separator is associated with a shut-off valve, via which the inlet chamber can be separated from a pre-pressure zone.

Ein gattungsgemäße Systemtrenner ist aus der GB 1 374 833 A bekannt.A generic system separator is from the GB 1 374 833 A known.

Die DE 0 166 203 A2 offenbart eine Armatur für ein Gas- und/oder Flüssigkeitsrohr.The DE 0 166 203 A2 discloses a fitting for a gas and / or liquid pipe.

Die EP 2 431 515 A1 offenbart einem Ablaufschlauch einer Waschmaschine.The EP 2 431 515 A1 discloses a drain hose of a washing machine.

Der Erfindung liegt die Aufgabe zu Grunde, einen neuartigen Systemtrenner zu schaffen.The invention is based on the object to provide a novel system separator.

Diese Aufgabe wird durch einen Systemtrenner gemäß Anspruch 1 gelöst. Der erfindungsgemäße Systemtrenner verfügt über den Vorteil, dass die beiden Gehäuseteile in beliebiger Drehposition zueinander aneinander fixiert werden können. Hierzu werden aneinander angrenzende Abschnitte der beiden Gehäuseteile einfach ineinandergesteckt und demnach nicht wie im Stand der Technik üblich miteinander verschraubt, wobei ein Sicherungselement die beiden Gehäuseteile in beliebiger relativer Drehposition aneinander fixiert. Dies ist bei der Anordnung des Systemtrenners unter beengten Platzverhältnissen von Vorteil. Nach Lösen des Sicherungselements können die beiden Gehäuseteile des Systemtrenners auseinandergezogen werden, wobei dann das zwischen den ineinandergesteckten Abschnitten der beiden Gehäuseteile positionierte Filterelement des Systemtrenners zugänglich ist. Dies erlaubt eine einfache Wartung bzw. einen einfachen Austausch des Filterelements, und zwar ohne die Notwendigkeit, den Systemtrenner von Leitungen, mit denen derselbe verbunden ist, zu demontieren. Die Fixierung der beiden Gehäuseteile über das Sicherungselement, das in die beiden umlaufenden Sicherungsnuten der beiden ineinandergesteckten Abschnitte der beiden Gehäuseteile zumindest abschnittsweise eingreift, ist besonders einfach und bevorzugt.This object is achieved by a system separator according to claim 1. The system separator according to the invention has the advantage that the two housing parts can be fixed to each other in any rotational position to each other. For this purpose, adjacent sections of the two housing parts are simply plugged into each other and therefore not screwed together as usual in the prior art, wherein a securing element fixes the two housing parts in any relative rotational position to each other. This is advantageous in the arrangement of the system separator under confined spaces. After releasing the securing element, the two housing parts of the system separator can be pulled apart, in which case the positioned between the nested sections of the two housing parts filter element of the system separator is accessible. This allows easy maintenance or replacement of the filter element without the need to disassemble the system separator from lines to which it is connected. The fixation of the two housing parts via the securing element, which at least partially engages in the two circumferential securing grooves of the two nested sections of the two housing parts, is particularly simple and preferred.

Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Nachfolgend wird ein Ausführungsbeispiel der Erfindung, ohne hierauf beschränkt zu sein, anhand der Zeichnung näher erläutert. In der Zeichnung zeigt:

Fig. 1
einen ersten erfindungsgemäßen Systemtrenner in perspektivischer Ansicht;
Fig. 2
den Systemtrenner der Fig. 1 in einer ersten Seitenansicht;
Fig. 3
den Systemtrenner der Fig. 1 in einer gegenüber Fig. 2 um 90° gedrehten, zweiten Seitenansicht;
Fig. 4
einen Querschnitt durch den Systemtrenner der Fig. 2;
Fig. 5
einen weiteren Querschnitt durch den Systemtrenner der Fig. 1 entlang der Schnittlinie V-V in Fig. 4;
Fig. 6
einen zweiten erfindungsgemäßen Systemtrenner in einer Seitenansicht; und
Fig. 7
einen Querschnitt durch den Systemtrenner der Fig. 6.
Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Hereinafter, an embodiment of the invention, without being limited thereto, explained in more detail with reference to the drawing. In the drawing shows:
Fig. 1
a first system separator according to the invention in a perspective view;
Fig. 2
the system separator of Fig. 1 in a first side view;
Fig. 3
the system separator of Fig. 1 in one opposite Fig. 2 rotated 90 °, second side view;
Fig. 4
a cross section through the system separator of Fig. 2 ;
Fig. 5
another cross section through the system separator of Fig. 1 along the section line VV in Fig. 4 ;
Fig. 6
a second system separator according to the invention in a side view; and
Fig. 7
a cross section through the system separator of Fig. 6 ,

Fig. 1 bis 5 zeigen unterschiedliche Ansichten eines ersten erfindungsgemäßen Systemtrenners 10, wobei ein solcher Systemtrenner 10 ein Gehäuse 11 umfasst, welches eine Einlasskammer 12, eine Zwischenkammer 13 und eine Auslasskammer 14 definiert. In dem Gehäuse 11 sind in Durchflussrichtung eines Mediums hintereinander mehrere Rückflussverhinderer geschaltet, nämlich ein erster Rückflussverhinderer 15 zwischen die Einlasskammer 12 und die Zwischenkammer 13 und ein zweiter Rückflussverhinderer 16 zwischen die Zwischenkammer 13 und die Auslasskammer 14. Weiterhin ist im Gehäuse 11 ein Ablassventil 34 aufgenommen, welches abhängig von einem Differenzdruck zwischen dem Druck in der Einlasskammer 12 und dem Druck in der Zwischenkammer 13 die Zwischenkammer 13 in die Umgebung belüften kann. Die Details und die Funktionsweise der beiden Rückflussverhinderer 15, 16 sowie des Ablassventils 34 sind dem hier angesprochenen Fachmann geläufig und bedürfen keiner näheren Erläuterung. Fig. 1 to 5 show different views of a first inventive system separator 10, wherein such a system separator 10 comprises a housing 11, which defines an inlet chamber 12, an intermediate chamber 13 and an outlet chamber 14. In the housing 11, a plurality of backflow preventers are connected one behind the other in the flow direction of a medium, namely a first backflow preventer 15 between the inlet chamber 12 and the intermediate chamber 13 and a second backflow preventer 16 between the intermediate chamber 13 and the outlet chamber 14. Furthermore, a drain valve 34 is accommodated in the housing 11 which can ventilate the intermediate chamber 13 into the environment depending on a differential pressure between the pressure in the inlet chamber 12 and the pressure in the intermediate chamber 13. The details and the operation of the two backflow preventer 15, 16 and the drain valve 34 are familiar to the person skilled in the art and need no further explanation.

Das Gehäuse 11 des Systemtrenners 10 ist mehrteilig ausgebildet, wobei ein erstes Gehäuseteil 17 der Anbindung des Systemtrenners 10, nämlich der Einlasskammer 12 desselben, an eine erste Leitung bzw. an eine Vordruckzone dient, und wobei das zweite Gehäuseteil 18 vorzugsweise beide Rückflussverhinderer 15, 16 sowie das Ablassventil 34 aufnimmt und der Anbindung des Systemtrenners 10, nämlich der Auslasskammer 14 desselben, an eine zweite Leitung bzw. an eine Hinterdruckzone dient. So verfügt das erste Gehäuseteil 17 über einen Flansch 19 mit einem Außengewinde 20 zum Verschrauben des Systemtrenners 11 mit der ersten Leitung bzw. der Vordruckzone, wohingegen das zweite Gehäuseteil 18 einen Flansch 21 mit einem Außengewinde 22 aufweist, um den Systemtrenner 11 an die zweite Leitung bzw. die Hinterdruckzone anzubinden.The housing 11 of the system separator 10 is designed in several parts, wherein a first housing part 17 of the connection of the system separator 10, namely the inlet chamber 12 thereof, to a first line or to a pre-pressure zone, and wherein the second housing part 18, preferably both backflow preventer 15, 16 as well as the drain valve 34 receives and the connection of the system separator 10, namely the outlet chamber 14 thereof, to a second line or to a back pressure zone is used. Thus, the first housing part 17 has a flange 19 with an external thread 20 for screwing the system separator 11 to the first line or the pre-compression zone, whereas the second housing part 18 has a flange 21 with an external thread 22 to the system separator 11 to the second line or to connect the back pressure zone.

Zur Verbindung der beiden Gehäuseteile 17, 18 des Gehäuses 11 des Systemtrenners 10 sind aneinandergrenzende Abschnitte 23, 24 der Gehäuseteile 17, 18 ineinandergesteckt und in beliebiger relativer Drehposition zueinander über ein Sicherungselement 25 aneinander fixiert. Die beiden Gehäuseteil 17, 18 des Gehäuses 11 des Systemtrenners 10 sind demnach nicht miteinander verschraubt, vielmehr sind die aneinander angrenzenden Abschnitte 23, 24 der beiden Gehäuseteile 17, 18 ineinandergesteckt und über das Sicherungselement 25 aneinander fixiert.To connect the two housing parts 17, 18 of the housing 11 of the system separator 10 adjacent sections 23, 24 of the housing parts 17, 18 are inserted into each other and fixed in any relative rotational position to each other via a securing element 25 to each other. The two housing part 17, 18 of the housing 11 of the system separator 10 are therefore not screwed together, but the adjacent sections 23, 24 of the two housing parts 17, 18 are inserted into one another and fixed on the securing element 25 to each other.

Zwischen den ineinandergesteckten Abschnitten 23 und 24 der beiden Gehäuseteile 17, 18 ist ein Filterelement 26 positioniert. Nach Lösen des Sicherungselements 25 und Auseinanderziehen der beiden Gehäuseteile 17, 18 ist das Filterelement 26 leicht zugänglich, zum Beispiel für Wartungsarbeiten oder für einen Austausch des Filterelements 26 und zwar ohne dass die Gehäuseteile 17, 18 von den Leitungen bzw. von der Vordruckzone und der Hinterdruckzone demontiert werden müssen.Between the nested sections 23 and 24 of the two housing parts 17, 18, a filter element 26 is positioned. After loosening the securing element 25 and pulling the two housing parts 17, 18, the filter element 26 is easily accessible, for example, for maintenance or replacement of the filter element 26 and that without the housing parts 17, 18 of the lines or of the pre-pressure zone and the Back pressure zone must be dismantled.

Wie am besten Fig. 4 und 5 entnommen werden kann, ist den ineinandergesteckten Abschnitten 23 und 24 der beiden Gehäuseteile 17, 18 des Gehäuses 11 des Systemtrenners 10 jeweils eine umlaufende Sicherungsnut 27 bzw. 28 ausgebildet. Dann, wenn die beiden Abschnitte 23, 24 der beiden Gehäuseteile 17, 18 ineinandergesteckt sind, umgeben sich die beiden Sicherungsnuten 27 und 28 konzentrisch, wobei sich das Sicherungselement 25 zur Fixierung der beiden Gehäuseteile 17, 18 aneinander durch beide sich konzentrisch umschließenden und umlaufenden Sicherungsnuten 27, 28 abschnittsweise erstreckt.How best Fig. 4 and 5 can be removed, the nested sections 23 and 24 of the two housing parts 17, 18 of the housing 11 of the system separator 10 each have a circumferential securing groove 27 and 28, respectively. Then, when the two sections 23, 24 of the two housing parts 17, 18 are inserted into each other, the two securing grooves 27 and 28 concentrically surround each other, wherein the securing element 25 for fixing the two housing parts 17, 18 to each other by both concentrically enclosing and circumferential securing grooves 27, 28 extends in sections.

Wie am besten Fig. 5 entnommen werden kann, sind die sich beiden konzentrisch umgebenden Sicherungsnuten 27, 28 von einer Wandung 29 eines der ineinandergesteckten Abschnitte der ineinandergesteckten Gehäuseteile 17, 18 voneinander getrennt, wobei in diese Wandung 29 Ausnehmungen 30 eingebracht sind, durch die sich das Sicherungselement 25 hindurch erstrecken kann, um die beiden Gehäuseteile 17, 18 aneinander zu fixieren.How best Fig. 5 can be removed, the two concentric surrounding securing grooves 27, 28 of a wall 29 of one of the nested portions of the nested housing parts 17, 18 separated from each other, wherein in this wall 29 recesses 30 are introduced, through which the securing element 25 can extend therethrough to fix the two housing parts 17, 18 together.

Im gezeigten, bevorzugten Ausführungsbeispiel ist der Abschnitt 24 des zweiten, unteren Gehäuseteils 18 in den Abschnitt 23 des ersten, oberen Gehäuseteils 17 eingesteckt, wobei dann, wenn die beiden Abschnitte 23, 24 der beiden Gehäuseteile 17, 18 ineinandergesteckt sind, die Sicherungsnut 27 des Abschnitts 23 des ersten, oberen Gehäuseteils 17 radial außen und die Sicherungsnut 28 des zweiten, unteren Gehäuseteils 18 radial innen positioniert ist, so dass demnach dann die Sicherungsnut 27 des oberen Gehäuseteils 17 bzw. des Abschnitts 23 desselben die Sicherungsnut 28 des unteren Gehäuseteils 18 bzw. des Abschnitts 24 desselben radial außen konzentrisch umgibt. In diesem Fall ist dann die Wandung 29, welche die Ausnehmungen 30 für den Durchtritt des Sicherungselements 25 aufweist und welche die beiden Sicherungsnuten 27, 28 voneinander trennt, vom Abschnitt 23 des ersten, oberen Gehäuseteils 17 bereitgestellt.In the preferred embodiment shown, the portion 24 of the second, lower housing part 18 is inserted into the portion 23 of the first, upper housing part 17, wherein when the two sections 23, 24 of the two housing parts 17, 18 are inserted into each other, the securing groove 27 of Section 23 of the first, upper housing part 17 radially outward and the securing groove 28 of the second, lower housing part 18 is positioned radially inward, so that accordingly the securing groove 27 of the upper housing part 17 and the section 23 thereof the securing groove 28 of the lower housing part 18 and of the section 24 of the same radially outwardly concentrically surrounds. In this case, the wall 29, which has the recesses 30 for the passage of the securing element 25 and which separates the two securing grooves 27, 28, from the portion 23 of the first, upper housing part 17 is then provided.

Wie am besten Fig. 5 entnommen werden kann, ist das Sicherungselement als U-förmige Klammer ausgeführt, wobei parallel zueinander verlaufende Stege 35 dieser Klammer sich durch die Ausnehmungen 30 in der Wandung 29 erstrecken, so dass sich diese parallel verlaufenden Stege 35 des Sicherungselements 25 abschnittsweise durch beide umlaufenden Sicherungsnuten 27, 28 erstrecken. Gemäß Fig. 5 sind die Ausnehmungen 30 derart in die die beiden Sicherungsnuten 27, 28 trennende Wandung 29 eingebracht, dass die parallel verlaufenden Stege 35 des klammerartigen Sicherungselements 25, die sich durch diese Ausnehmungen 30 erstrecken, den Abschnitt 24 des unteren Gehäuseteils 18 des Gehäuses 11 an sich in etwa diametral gegenüberliegenden Positionen umfassen.How best Fig. 5 can be removed, the securing element is designed as a U-shaped bracket, wherein mutually parallel webs 35 of this clip extending through the recesses 30 in the wall 29, so that these parallel webs 35 of the securing element 25 in sections by both circumferential securing grooves 27th , 28 extend. According to Fig. 5 the recesses 30 are in such a way in which the two securing grooves 27, 28 separating wall 29 introduced that the parallel webs 35 of the clip-like securing element 25 which extend through these recesses 30, the portion 24 of the lower housing part 18 of the housing 11 in itself comprise approximately diametrically opposite positions.

Im gezeigten, bevorzugten Ausführungsbeispiel ist in das erste, obere Gehäuseteil 17 des Gehäuses 11 ein Absperrventil 31 integriert. Über das Absperrventil 31 kann dann, wenn der Systemtrenner 11 mit dem Flansch 19 an die Vordruckzone angebunden ist, die Vordruckzone von der Eintrittskammer 12 des Systemtrenners 11 getrennt werden. In diesem Fall kann dann ohne die Gefahr, dass aus der Vordruckzone Medium austritt, durch Entfernen des Sicherungselements 25 das untere Gehäuseteil 18 vom oberen Gehäuseteil 17 getrennt und auf das Filterelement 26 zugegriffen werden.In the illustrated preferred embodiment, a check valve 31 is integrated into the first, upper housing part 17 of the housing 11. When the system separator 11 is connected with the flange 19 to the pre-pressure zone, the pre-pressure zone can be separated from the inlet chamber 12 of the system separator 11 via the shut-off valve 31. In this case, the lower housing part 18 can then be separated from the upper housing part 17 and the filter element 26 can be accessed by removing the securing element 25 without the risk of medium escaping from the pre-compression zone.

Obwohl die Integration des Absperrventils 31 in das erste, obere Gehäuseteil 17 des Gehäuses 11 des Systemtrenners 10 bevorzugt ist, ist es auch möglich, das erste, obere Gehäuseteil 17 ausschließlich zur Anbindung des Systemtrenners 11 an eine Leitung bzw. an eine Vordruckzone bzw. an ein separates Absperrventil zu nutzen. So zeigen Fig. 6 und 7 ein Ausführungsbeispiel eines Systemtrenners, in welchem das erste, obere Gehäuseteil 17 ausschließlich die Anbindungsfunktion zur Anbindung des Systemtrenners 10 an eine Leitung bzw. an ein Absperrventil bereitstellt.Although the integration of the check valve 31 in the first, upper housing part 17 of the housing 11 of the system separator 10 is preferred, it is also possible, the first upper housing part 17 exclusively for connecting the system separator 11 to a line or to a pre-pressure zone or at to use a separate shut-off valve. To show Fig. 6 and 7 an embodiment of a system separator, in which the first, upper housing part 17 exclusively provides the connection function for connecting the system separator 10 to a line or to a shut-off valve.

Obwohl nicht gezeigt, ist es möglich, in das erste, obere Gehäuseteil 17 einen Druckminderer zu integrieren.Although not shown, it is possible to integrate a pressure reducer into the first upper housing part 17.

Wie am besten Fig. 4 entnommen werden kann, sind die beiden ineinandergesteckten Abschnitte 23 und 24 der beiden Gehäuseteile 17, 18 über ein als Dichtungsring ausgebildetes Dichtungselement 32 gegeneinander abgedichtet. Das Dichtungselement 32 ist dabei in eine Nut 33 des Abschnitts 24 des unteren Gehäuseteils 18 eingesetzt, wobei im ineinandergesteckten Zustand der beiden Gehäuseteile 17, 18 diese Nut 33, welche das Dichtungselement 32 aufnimmt, axial von den sich konzentrisch umgebenen Sicherungsnuten 27, 28 beabstandet ist.How best Fig. 4 can be removed, the two nested sections 23 and 24 of the two housing parts 17, 18 are sealed against each other via a designed as a sealing ring seal member 32. The sealing element 32 is inserted into a groove 33 of the portion 24 of the lower housing part 18, wherein in the nested state of the two housing parts 17, 18, this groove 33, which receives the sealing member 32, axially spaced from the concentrically surrounded locking grooves 27, 28 ,

Obwohl die Verwendung eines klammerartigen Sicherungselements 25 bevorzugt ist, können auch zwei separate Sicherungsstifte als Sicherungselement verwendet werden.Although the use of a clip-type securing element 25 is preferred, two separate locking pins may also be used as the securing element.

Das zweite Gehäuseteil 18 nimmt vorzugsweise alle Bauteile für die eigentliche Systemtrennerfunktion auf, also die beiden Rückflussverhinderer 15, 16 sowie das Ablassventil 34.The second housing part 18 preferably accommodates all components for the actual system separator function, that is, the two backflow preventers 15, 16 and the drain valve 34.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
SystemtrennerBackflow
1111
Gehäusecasing
1212
Einlasskammerinlet chamber
1313
Zwischenkammerintermediate chamber
1414
Auslasskammeroutlet
1515
einlassseitiger Rückflussverhindererinlet-side non-return valve
1616
auslassseitiger Rückflussverhindereroutlet-side backflow preventer
1717
erstes Gehäuseteilfirst housing part
1818
zweites Gehäuseteilsecond housing part
1919
Flanschflange
2020
Gewindethread
2121
Flanschflange
2222
Gewindethread
2323
Abschnittsection
2424
Abschnittsection
2525
Sicherungselementfuse element
2626
Filterelementfilter element
2727
Sicherungsnutsecuring groove
2828
Sicherungsnutsecuring groove
2929
Wandungwall
3030
Ausnehmungrecess
3131
Absperrventilshut-off valve
3232
Dichtungselementsealing element
3333
Nutgroove
3434
Ablassventildrain valve
3535
Stegweb

Claims (10)

  1. System separator (10), having a housing (11) defining an inlet chamber (12), an intermediate chamber (13) and an outlet chamber (14), having backflow preventers positioned in the housing and connected one after another in the flow direction of a medium, namely a first, inlet-side backflow preventer (15) connected between the inlet chamber (12) and the intermediate chamber (13), and a second, outlet-side backflow preventer (16) connected between the intermediate chamber (13) and the outlet chamber (14), and having a discharge valve (34) which vents the intermediate chamber (13) between the backflow preventers (15, 16) and which is controlled as a function of the differential pressure between the pressure in the inlet chamber and the pressure in the intermediate chamber, the housing (11) being formed in many parts from a first housing part (17) and a second housing part (18), the first housing part (17) serving for the attachment of the inlet chamber (12) of the system separator to a first line, and the second housing part (18) serving for the attachment of the outlet chamber (14) of the system separator to a second line,
    characterized in that
    in order to connect the two housing parts (18, 19), adjacent sections (23, 24) of the housing parts (18, 19) are plugged into one another and are fixed to one another in any desired relative rotational position relative to one another via a securing element (25), namely in such a way that
    on the sections (23, 24) of the two housing parts (17, 18) that are plugged into one another, in each case a circumferential securing groove (27, 28) is formed which, when the sections (23, 24) of the two housing parts (17, 18) are plugged into one another, surround each other concentrically,
    one wall (29) of one of the sections (23) that are plugged into one another is positioned between the securing grooves (27, 28) that surround each other concentrically, recesses (30) for the passage of the securing element (25) being formed in this wall (29),
    in that the securing element (25) for fixing the housing parts (17, 18) to one another extends sectionally through the circumferential securing grooves (27, 28) of the two housing parts (17, 18),
    a filter element (26) positioned between the sections (23, 24) of the two housing parts (18, 19) that are plugged into one another is accessible after the securing element (25) has been released and after the two housing parts (18, 19) have been pulled apart.
  2. System separator according to Claim 1, characterized in that the sections (23, 24) of the two housing parts (18, 19) that are plugged into one another are sealed off relative to one another by a sealing element (32).
  3. System separator according to Claim 2, characterized in that a section (24) of the second, lower housing part (18) is plugged into a section (23) of the first, upper housing part (17), and in that the sealing element (32) is inserted into a groove (33) of the section (24) of the second, lower housing part (18).
  4. System separator according to one of Claims 1 to 3, characterized in that a section (24) of the second, lower housing part (18) is plugged into a section (23) of the first, upper housing part (17), and in that when the sections (23, 24) of the two housing parts (17, 18) are plugged into one another, the securing groove (28) of the second, lower housing part (18) is positioned radially on the inside, and the securing groove (27) of the first, upper housing part (17) is positioned radially on the outside.
  5. System separator according to one of Claims 1 to 4, characterized in that the securing element (25) is formed as a U-shaped clamp.
  6. System separator according to one of Claims 1 to 5, characterized in that the securing element (25) is formed from two separate securing pins.
  7. System separator according to one of Claims 1 to 6, characterized in that a shut-off valve (31) is integrated in the first housing part (17).
  8. System separator according to one of Claims 1 to 7, characterized in that a pressure reducer is integrated in the first housing part.
  9. System separator according to one of Claims 1 to 8, characterized in that the second housing part (18) accommodates both backflow preventers (15, 16).
  10. System separator according to Claim 9, characterized in that the second housing part (18) accommodates all the components for the actual system separator function.
EP13166803.0A 2013-05-07 2013-05-07 System separator Active EP2801672B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13166803.0A EP2801672B1 (en) 2013-05-07 2013-05-07 System separator
DE202014001685.2U DE202014001685U1 (en) 2013-05-07 2014-02-26 Backflow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13166803.0A EP2801672B1 (en) 2013-05-07 2013-05-07 System separator

Publications (2)

Publication Number Publication Date
EP2801672A1 EP2801672A1 (en) 2014-11-12
EP2801672B1 true EP2801672B1 (en) 2017-06-28

Family

ID=48236763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13166803.0A Active EP2801672B1 (en) 2013-05-07 2013-05-07 System separator

Country Status (2)

Country Link
EP (1) EP2801672B1 (en)
DE (1) DE202014001685U1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016104221U1 (en) 2016-08-01 2016-10-10 Honeywell Technologies Sarl Backflow
EP3896321B1 (en) 2020-04-14 2023-06-21 Pittway Sarl Assembly having an actuator unit, a valve unit and a mounting clip

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1374833A (en) * 1971-04-20 1974-11-20 Pegler Hattersley Ltd Backflow preventors
DE3419826C2 (en) * 1984-05-26 1987-04-30 AKU-Armaturen GmbH Erzeugnisse für Industrie und Energie, 4300 Essen Valve for the gas and/or liquid pipe network
DE4204386C2 (en) 1992-02-14 1994-01-20 Honeywell Braukmann Gmbh System separator
DE202005020081U1 (en) 2005-12-21 2006-03-09 Honeywell Technologies Sarl Ecc System separators and arrangements with such a system separator
DE202009016823U1 (en) 2009-12-11 2011-04-21 Gebrüder Kemper GmbH + Co Metallwerke outlet fitting
DE102010037669B4 (en) * 2010-09-21 2017-11-30 Miele & Cie. Kg Drain hose for a water-fed household appliance

Also Published As

Publication number Publication date
DE202014001685U1 (en) 2014-03-21
EP2801672A1 (en) 2014-11-12

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