EP0788815A2 - Pressure handle valve for permanently presurized fire extinguisher - Google Patents

Pressure handle valve for permanently presurized fire extinguisher Download PDF

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Publication number
EP0788815A2
EP0788815A2 EP97101877A EP97101877A EP0788815A2 EP 0788815 A2 EP0788815 A2 EP 0788815A2 EP 97101877 A EP97101877 A EP 97101877A EP 97101877 A EP97101877 A EP 97101877A EP 0788815 A2 EP0788815 A2 EP 0788815A2
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EP
European Patent Office
Prior art keywords
valve
bore
pressure
valve body
container
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Application number
EP97101877A
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German (de)
French (fr)
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EP0788815A3 (en
EP0788815B2 (en
EP0788815B1 (en
Inventor
Daniel Hofer
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GNUTTI CIRILLO S.P.A.
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Daniel Hofer
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Application filed by Daniel Hofer filed Critical Daniel Hofer
Publication of EP0788815A2 publication Critical patent/EP0788815A2/en
Publication of EP0788815A3 publication Critical patent/EP0788815A3/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/62—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
    • A62C13/64—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container the extinguishing material being released by means of a valve

Definitions

  • the invention relates to a pressure lever valve for continuous pressure fire extinguishers according to the preamble of claim 1.
  • Continuous pressure fire extinguishers consist of a container that holds the powdered extinguishing agent and is pressurized using compressed nitrogen.
  • a riser pipe arranged in the container serves to discharge the extinguishing agent.
  • a valve is screwed onto the neck of the container, to which the riser pipe is also screwed.
  • the valve has a valve bore which connects the riser pipe to a connection opening on the side of the valve body.
  • a valve tappet is axially displaceably mounted in the valve bore, which opens or closes the valve bore and accordingly releases or closes the passage between the riser pipe and the connection opening.
  • the valve lifter is held in the closed position by spring loading. By means of a pressure lever mounted on the valve body, the valve tappet can be brought into the open position against the spring force.
  • a nozzle is attached to the connection opening in order to discharge the extinguishing agent under pressure through the riser pipe and the connection opening when the fire extinguisher is open.
  • the connection opening is also used during filling and during maintenance to introduce the nitrogen gas into the container under pressure.
  • a pressure gauge attached to the valve is used for this purpose, which is connected to the inside of the container via a pressure hole stands.
  • the valve also has a test socket, which is also connected to the inside of the container via a pressure hole.
  • the test socket is used to connect an external pressure tester when servicing the fire extinguisher.
  • the test socket can also be equipped with a rupture disc device as a safeguard against excess pressure in the container.
  • valve body is made of brass.
  • a threaded connector on the valve body, to which the manometer is screwed, is used to connect the manometer.
  • the screw connection of the pressure gauge to the valve body represents a possible leak that can lead to pressure losses.
  • the screwed-on manometer increases the overall dimensions of the valve.
  • the invention has for its object to improve a pressure lever valve of the type mentioned so that its function is more reliable and the overall dimensions are reduced.
  • the manometer installed in the valve body is preferably connected to the test nozzle via a transverse bore within the valve body.
  • the internal pressure of the container can thus be transmitted to the manometer and to the test socket via a single common pressure bore, so that the valve is of simple construction.
  • This pressure bore is expediently arranged parallel to and offset from the valve bore and opens into the transverse bore that connects the pressure gauge to the test socket.
  • the pressure lever valve for a continuous pressure fire extinguisher has a one-piece valve body 10 made of brass. At the bottom of the valve body 10, an external thread 11 is formed, which is screwed sealingly into an internal thread of the neck of the container for fastening the valve body 10 to an extinguishing agent container, not shown.
  • a riser pipe of the extinguishing agent container is screwed with a thread into an internal thread of the valve body 10, which is formed coaxially within the external thread 11.
  • the valve body 10 is axially penetrated by a valve bore 20 from top to bottom.
  • the valve bore 20 widens conically at its lower end to the diameter of the riser pipe.
  • the conical extension forms a valve seat.
  • a valve tappet is guided axially displaceably in the valve bore 20, at the lower end of which a valve cone is formed which cooperates with the valve seat of the valve bore 20 in order to open or close the valve bore 20 against the riser pipe.
  • a shoulder 12 is formed with a bearing bore 13.
  • a pressure lever (not shown) is pivotally mounted, which engages the end of the valve tappet projecting from the valve bore 20.
  • valve tappet By depressing the pressure lever against the force of a spring, the valve tappet is depressed so that its valve cone clears the valve bore 20 so that it comes into contact with the riser pipe and thus the extinguishing agent container. If the pressure lever is released, the spring pushes the valve tappet into the closed position.
  • the pressure lever can be secured against unintentional actuation by means of a locking pin engaging in a fork 14 of the valve body 10.
  • a connecting piece 21 is integrally formed on the side of the valve body 10.
  • the connection piece 21 has a connection opening 22 which opens radially perpendicularly into the valve bore 20 above the valve seat.
  • the connecting piece 21 with the connection opening 22 is used to connect a nozzle through which the extinguishing agent is discharged from the container when the fire extinguisher is used.
  • the connecting piece 21 with the connection opening 22 serves when filling the container to fill nitrogen under pressure into the container.
  • a pressure gauge piece 30 is integrally formed on the valve body 10.
  • the pressure gauge connector 30 has a substantially cylindrical face that is open at the end Turn 31 on.
  • the recess 31 serves to receive a manometer, not shown.
  • an inner shoulder 32 is arranged on the bottom of the recess 31.
  • a membrane disc of the manometer is inserted into the recess 31 and is seated on the inner shoulder 32.
  • the membrane disk is preferably soldered into the pressure gauge socket 30.
  • the membrane disk actuates a pressure indicator via a gear, the gear and the pressure indicator being arranged in the space of the recess 31 in front of the membrane disk.
  • An undercut recess 33 in the recess 31 serves to receive a snap ring which secures the gear and the display of the pressure gauge in the recess 31.
  • a viewing window is pressed into the recess 31 in front of the snap ring in order to close the transmission and the display.
  • test socket 40 is formed on the side of the valve body 10 diametrically opposite the pressure gauge socket 30.
  • the test socket 40 has an external thread, by means of which an external pressure test device can be connected during the maintenance of the fire extinguisher. If necessary, a rupture disk device is also used in the test nozzle 40 as a pressure relief device.
  • a transverse bore 41 leads through the valve body 10 and opens into the bottom surface of the recess 31 of the pressure gauge socket 30.
  • the transverse bore 41 runs obliquely to the valve bore 20 in a plane perpendicular to the valve bore 20 and on the side of the valve bore opposite the connector 21 20.
  • a pressure bore 42 is formed in the valve body 10.
  • the pressure bore 42 opens at its upper end into the transverse bore 41, while its lower end opens at the area of the internal thread receiving the riser pipe.
  • the internal thread has an axially parallel notch which continues the pressure bore 42 in alignment.
  • the valve is screwed onto the container and the riser pipe into the internal thread of the valve body 10 screwed in, the pressure bore 42 is connected to the internal pressure space of the container via the notch of the internal thread.
  • the internal pressure of the container thus acts on the inside of the membrane disk of the pressure gauge 30 used in the pressure gauge socket 30 via the notch of the internal thread, the pressure bore 42 and the cross bore 41.
  • the internal pressure of the container is applied to the test connection 40 via the transverse bore 41 for a possible check and acts on the rupture disk safety device.

Abstract

The valve is fitted to a fire extinguisher which is maintained in a pressurised state, and has a metal body (10) which is made preferably from brass, and which can be screwed onto the feed pipe on a tank which holds an extinguishing agent. A valve bore (20) passes through the body, and is aligned axially with the feed pipe. A manometer and a testing nozzle (40) are connected to the inside of the tank by pressure bores. The manometer is set into a nozzle (30) which is made in one piece with the valve body.

Description

Die Erfindung betrifft ein Druckhebel-Ventil für Dauerdruck-Feuerlöscher gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a pressure lever valve for continuous pressure fire extinguishers according to the preamble of claim 1.

Dauerdruck-Feuerlöscher bestehen aus einem Behälter, der das pulverförmige Löschmittel aufnimmt und mittels komprimiertem Stickstoff unter Druck gesetzt wird. Zum Ausbringen des Löschmittels dient ein in dem Behälter angeordnetes Steigrohr. Auf den Hals des Behälters wird ein Ventil geschraubt, an welches auch das Steigrohr angeschraubt wird. Das Ventil weist eine Ventilbohrung auf, die das Steigrohr mit einer seitlich am Ventilkörper angebrachten Anschlußöffnung verbindet. In der Ventilbohrung ist ein Ventilstößel axial verschiebbar gelagert, der die Ventilbohrung öffnet bzw. schließt und dementsprechend den Durchgang zwischen dem Steigrohr und der Anschlußöffnung freigibt oder verschließt. Der Ventilstößel wird federbelastet in der Schließstellung gehalten. Mittels eines an dem Ventilkörper gelagerten Druckhebels kann der Ventilstößel gegen die Federkraft in die Öffnungsstellung gebracht werden. An die Anschlußöffnung wird eine Düse angesetzt, um im Einsatz des Feuerlöschers bei geöffnetem Ventil das Löschmittel unter Druck über das Steigrohr und die Anschlußöffnung auszubringen. Ebenso wird die Anschlußöffnung beim Befüllen und bei der Wartung dazu verwendet, das Stickstoffgas unter Druck in den Behälter einzubringen.Continuous pressure fire extinguishers consist of a container that holds the powdered extinguishing agent and is pressurized using compressed nitrogen. A riser pipe arranged in the container serves to discharge the extinguishing agent. A valve is screwed onto the neck of the container, to which the riser pipe is also screwed. The valve has a valve bore which connects the riser pipe to a connection opening on the side of the valve body. A valve tappet is axially displaceably mounted in the valve bore, which opens or closes the valve bore and accordingly releases or closes the passage between the riser pipe and the connection opening. The valve lifter is held in the closed position by spring loading. By means of a pressure lever mounted on the valve body, the valve tappet can be brought into the open position against the spring force. A nozzle is attached to the connection opening in order to discharge the extinguishing agent under pressure through the riser pipe and the connection opening when the fire extinguisher is open. The connection opening is also used during filling and during maintenance to introduce the nitrogen gas into the container under pressure.

Um die Betriebsbereitschaft des Feuerlöschers kontrollieren zu können, ist es notwendig, den Druck in dem Behälter zu überwachen. Hierzu dient ein an dem Ventil angebrachtes Manometer, welches über eine Druckbohrung mit dem Behälterinneren in Verbindung steht. Weiter weist das Ventil einen Prüfstutzen auf, der ebenfalls über eine Druckbohrung mit dem Behälterinneren in Verbindung steht. Der Prüfstutzen dient zum Anschluß eines externen Druckprüfgerätes bei der Wartung des Feuerlöschers. Der Prüfstutzen kann zusätzlich mit einer Berstscheibeneinrichtung als Sicherung gegen einen Überdruck in dem Behälter ausgestattet sein.In order to check the operational readiness of the fire extinguisher, it is necessary to monitor the pressure in the container. A pressure gauge attached to the valve is used for this purpose, which is connected to the inside of the container via a pressure hole stands. The valve also has a test socket, which is also connected to the inside of the container via a pressure hole. The test socket is used to connect an external pressure tester when servicing the fire extinguisher. The test socket can also be equipped with a rupture disc device as a safeguard against excess pressure in the container.

Bei den bekannten Ventilen besteht der Ventilkörper aus Messing. Zum Anschluß des Manometers dient ein Gewindestutzen des Ventilkörpers, an welchen das Manometer angeschraubt wird. Die Schraubverbindung des Manometers mit dem Ventilkörper stellt eine mögliche Leckstelle dar, die zu Druckverlusten führen kann. Das angeschraubte Manometer vergrößert die Bauabmessungen des Ventils.In the known valves, the valve body is made of brass. A threaded connector on the valve body, to which the manometer is screwed, is used to connect the manometer. The screw connection of the pressure gauge to the valve body represents a possible leak that can lead to pressure losses. The screwed-on manometer increases the overall dimensions of the valve.

Der Erfindung liegt die Aufgabe zugrunde, ein Druckhebel-Ventil der eingangs genannten Gattung so zu verbessern, daß seine Funktion zuverlässiger wird und die Bauabmessungen reduziert werden.The invention has for its object to improve a pressure lever valve of the type mentioned so that its function is more reliable and the overall dimensions are reduced.

Diese Aufgabe wird erfindungsgemäß gelöst durch ein Druckhebel-Ventil mit den Merkmalen des Anspruchs 1.This object is achieved according to the invention by a pressure lever valve with the features of claim 1.

Vorteilhafte Ausführungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments of the invention are specified in the subclaims.

Mit der Erfindung ist es gelungen, das Manometer in den aus Messing bestehenden Ventilkörper zu integrieren. Dadurch ist die bei dem bekannten Ventil durch das Anschrauben des Manometers bedingte Leckmöglichkeit ausgeschaltet und der Druck in dem Behälter des Feuerlöschers kann über eine längere Zeitdauer zuverlässig gehalten werden. Durch die Integration des Manometers in den Ventilkörper wird außerdem eine wesentlich kompaktere Bauform des Ventilkörpers erreicht. Durch diese kompakte Bauform ist es möglich, bei derselben Ausführung des Ventils wahlweise sowohl einen handbetätigten Druckhebel als auch eine Kunststoffkappe zu montieren.With the invention it was possible to integrate the manometer into the valve body made of brass. This eliminates the possibility of leakage caused by screwing on the manometer in the known valve and the pressure in the container of the fire extinguisher can be reliably maintained over a longer period of time. By integrating the manometer into the valve body, a much more compact design of the valve body is also achieved. This compact design makes it possible to choose both a manually operated pressure lever and one with the same version of the valve Mount plastic cap.

Vorzugsweise ist das in den Ventilkörper eingebaute Manometer über eine Querbohrung innerhalb des Ventilkörpers mit dem Prüfstutzen verbunden. Der Innendruck des Behälters kann dadurch über eine einzige gemeinsame Druckbohrung sowohl an das Manometer als auch an den Prüfstutzen übertragen werden, so daß das Ventil konstruktiv einfach aufgebaut ist. Diese Druckbohrung ist zweckmäßigerweise parallel und achsversetzt zur Ventilbohrung angeordnet und mündet in die Querbohrung, die das Manometer mit dem Prüfstutzen verbindet.The manometer installed in the valve body is preferably connected to the test nozzle via a transverse bore within the valve body. The internal pressure of the container can thus be transmitted to the manometer and to the test socket via a single common pressure bore, so that the valve is of simple construction. This pressure bore is expediently arranged parallel to and offset from the valve bore and opens into the transverse bore that connects the pressure gauge to the test socket.

Im folgenden wird die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen

Figur 1
eine perspektivische Darstellung des Ventilkörpers,
Figur 2
eine Seitenansicht auf den Manometerstutzen des Ventilkörpers,
Figur 3
eine Draufsicht auf den Ventilkörper von oben und
Figur 4
einen Horizontalschnitt durch den Ventilkörper gegemäß der Schnittlinie A-A in Figur 2.
The invention is explained in more detail below with reference to an embodiment shown in the drawing. Show it
Figure 1
a perspective view of the valve body,
Figure 2
a side view of the manometer socket of the valve body,
Figure 3
a top view of the valve body from above and
Figure 4
a horizontal section through the valve body along the section line AA in Figure 2.

Das Druckhebel-Ventil für einen Dauerdruck-Feuerlöscher weist einen einstückigen Ventilkörper 10 aus Messing auf. Unten an dem Ventilkörper 10 ist ein Außengewinde 11 angeformt, welches zur Befestigung des Ventilkörpers 10 an einem nicht dargestellten Löschmittelbehälter in ein Innengewinde des Halses des Behälters abdichtend eingeschraubt wird. Ein Steigrohr des Löschmittel-Behälters wird mit einem Gewinde in ein Innengewinde des Ventilkörpers 10 eingeschraubt, welches koaxial innerhalb des Außengewindes 11 ausgebildet ist.The pressure lever valve for a continuous pressure fire extinguisher has a one-piece valve body 10 made of brass. At the bottom of the valve body 10, an external thread 11 is formed, which is screwed sealingly into an internal thread of the neck of the container for fastening the valve body 10 to an extinguishing agent container, not shown. A riser pipe of the extinguishing agent container is screwed with a thread into an internal thread of the valve body 10, which is formed coaxially within the external thread 11.

Der Ventilkörper 10 wird von oben nach unten axial von einer Ventilbohrung 20 durchsetzt. Die Ventilbohrung 20 erweitert sich an ihrem unteren Ende kegelförmig auf den Durchmesser des Steigrohres. Die kegelförmige Erweiterung bildet einen Ventilsitz. In der Ventilbohrung 20 ist axial verschiebbar ein Ventilstößel geführt, an dessen unterem Ende ein Ventilkegel ausgebildet ist, der mit dem Ventilsitz der Ventilbohrung 20 zusammenwirkt, um die Ventilbohrung 20 gegen das Steigrohr zu öffnen oder zu schließen. Oben an dem Ventilkörper 10 ist ein Ansatz 12 mit einer Lagerbohrung 13 angeformt. In der Lagerbohrung 13 wird schwenkbar ein nicht dargestellter Druckhebel gelagert, der an dem aus der Ventilbohrung 20 herausragenden Ende des Ventilstößels angreift. Durch Niederdrücken des Druckhebels gegen die Kraft einer Feder wird der Ventilstößel niedergedrückt, so daß sein Ventilkegel die Ventilbohrung 20 freigibt, so daß diese mit dem Steigrohr und damit dem Löschmittelbehälter in Verbindung kommt. Wird der Druckhebel freigegeben, so drückt die Feder den Ventilstößel in die Schließstellung. Mittels eines in eine Gabel 14 des Ventilkörpers 10 eingreifenden Sicherungsstiftes kann der Druckhebel gegen ein unbeabsichtigtes Betätigen gesichert werden.The valve body 10 is axially penetrated by a valve bore 20 from top to bottom. The valve bore 20 widens conically at its lower end to the diameter of the riser pipe. The conical extension forms a valve seat. A valve tappet is guided axially displaceably in the valve bore 20, at the lower end of which a valve cone is formed which cooperates with the valve seat of the valve bore 20 in order to open or close the valve bore 20 against the riser pipe. At the top of the valve body 10, a shoulder 12 is formed with a bearing bore 13. In the bearing bore 13, a pressure lever (not shown) is pivotally mounted, which engages the end of the valve tappet projecting from the valve bore 20. By depressing the pressure lever against the force of a spring, the valve tappet is depressed so that its valve cone clears the valve bore 20 so that it comes into contact with the riser pipe and thus the extinguishing agent container. If the pressure lever is released, the spring pushes the valve tappet into the closed position. The pressure lever can be secured against unintentional actuation by means of a locking pin engaging in a fork 14 of the valve body 10.

Seitlich an dem Ventilkörper 10 ist ein Anschlußstutzen 21 angeformt. Der Anschlußstutzen 21 weist eine Anschlußöffnung 22 auf, die oberhalb des Ventilsitzes radial senkrecht in die Ventilbohrung 20 mündet. Der Anschlußstutzen 21 mit der Anschlußöffnung 22 dient zum Anschließen einer Düse, über welche beim Einsatz des Feuerlöschers das Löschsmittel aus dem Behälter ausgebracht wird. Ebenso dient der Anschlußstutzen 21 mit der Anschlußöffnung 22 beim Befüllen des Behälters dazu, Stickstoff unter Druck in den Behälter einzufüllen.A connecting piece 21 is integrally formed on the side of the valve body 10. The connection piece 21 has a connection opening 22 which opens radially perpendicularly into the valve bore 20 above the valve seat. The connecting piece 21 with the connection opening 22 is used to connect a nozzle through which the extinguishing agent is discharged from the container when the fire extinguisher is used. Likewise, the connecting piece 21 with the connection opening 22 serves when filling the container to fill nitrogen under pressure into the container.

In etwa auf der gleichen Höhe wie der Anschlußstutzen 21 und in rechtem Winkel zu dem Anschlußstutzen 21 ist an dem Ventilkörper 10 ein Manometerstutzen 30 einstückig angeformt. Der Manometerstutzen 30 weist eine stirnseitig offene im wesentlichen zylindrische Ausdrehung 31 auf. Die Ausdrehung 31 dient zur Aufnahme eines nicht dargestellten Manometers. Hierzu ist am Boden der Ausdrehung 31 eine Innenschulter 32 angeordnet. Eine Membranscheibe des Manometers wird in die Ausdrehung 31 eingesetzt und sitzt auf der Innenschulter 32 auf. Die Membranscheibe wird vorzugsweise in den Manometerstutzen 30 eingelötet. Die Membranscheibe betätigt über ein Getriebe eine Druckanzeige, wobei das Getriebe und die Druckanzeige in dem Raum der Ausdrehung 31 vor der Membranscheibe angeordnet sind. Ein hinterschnittener Einstich 33 der Ausdrehung 31 dient zur Aufnahme eines Sprengringes, der das Getriebe und die Anzeige des Manometers in der Ausdrehung 31 sichert. Vor dem Sprengring wird ein Sichtfenster in die Ausdrehung 31 eingepreßt, um das Getriebe und die Anzeige zu verschließen.At approximately the same height as the connecting piece 21 and at a right angle to the connecting piece 21, a pressure gauge piece 30 is integrally formed on the valve body 10. The pressure gauge connector 30 has a substantially cylindrical face that is open at the end Turn 31 on. The recess 31 serves to receive a manometer, not shown. For this purpose, an inner shoulder 32 is arranged on the bottom of the recess 31. A membrane disc of the manometer is inserted into the recess 31 and is seated on the inner shoulder 32. The membrane disk is preferably soldered into the pressure gauge socket 30. The membrane disk actuates a pressure indicator via a gear, the gear and the pressure indicator being arranged in the space of the recess 31 in front of the membrane disk. An undercut recess 33 in the recess 31 serves to receive a snap ring which secures the gear and the display of the pressure gauge in the recess 31. A viewing window is pressed into the recess 31 in front of the snap ring in order to close the transmission and the display.

An der dem Manometerstutzen 30 diametral entgegengesetzten Seite des Ventilkörpers 10 ist ein Prüfstutzen 40 angeformt. Der Prüfstutzen 40 weist ein Außengewinde auf, mittels dessen eine externe Druckprüfeinrichtung bei der Wartung des Feuerlöschers angeschlossen werden kann. Gegebenenfalls ist in dem Prüfstutzen 40 auch noch eine Berstscheibeneinrichtung als Überdrucksicherung eingesetzt.A test socket 40 is formed on the side of the valve body 10 diametrically opposite the pressure gauge socket 30. The test socket 40 has an external thread, by means of which an external pressure test device can be connected during the maintenance of the fire extinguisher. If necessary, a rupture disk device is also used in the test nozzle 40 as a pressure relief device.

Von dem Prüfstutzen 40 führt eine Querbohrung 41 durch den Ventilkörper 10 und mündet in der Bodenfläche der Ausdrehung 31 des Manometerstutzens 30. Die Querbohrung 41 verläuft windschief zu der Ventilbohrung 20 in einer zur Ventilbohrung 20 senkrechten Ebene und auf der dem Anschlußstutzen 21 entgegengesetzten Seite der Ventilbohrung 20. Achsparallel zu der Ventilbohrung 20 und gegen diese versetzt ist eine Druckbohrung 42 in dem Ventilkörper 10 ausgebildet. Die Druckbohrung 42 mündet mit ihrem oberen Ende in die Querbohrung 41, während ihr unteres Ende im Bereich des das Steigrohr aufnehmenden Innengewindes mündet. Das Innengewinde weist eine achsparallele Einkerbung auf, die die Druckbohrung 42 fluchtend fortsetzt. Ist das Ventil auf den Behälter aufgeschraubt und das Steigrohr in das Innengewinde des Ventilkörpers 10 eingeschraubt, so steht die Druckbohrung 42 über die Einkerbung des Innengewindes mit dem Innendruckraum des Behälters in Verbindung. Der Innendruck des Behälters beaufschlagt somit über die Einkerbung des Innengewindes, die Druckbohrung 42 und die Querbohrung 41 die Innenseite der Membranscheibe des in dem Manometerstutzen 30 eingesetzten Manometers. In gleicher Weise steht der Innendruck des Behälters über die Querbohrung 41 an dem Prüfstutzen 40 für eine eventuelle Kontrolle an und beaufschlagt die Berstscheiben-Sicherheitseinrichtung.From the test socket 40, a transverse bore 41 leads through the valve body 10 and opens into the bottom surface of the recess 31 of the pressure gauge socket 30. The transverse bore 41 runs obliquely to the valve bore 20 in a plane perpendicular to the valve bore 20 and on the side of the valve bore opposite the connector 21 20. Axially parallel to and offset from the valve bore 20, a pressure bore 42 is formed in the valve body 10. The pressure bore 42 opens at its upper end into the transverse bore 41, while its lower end opens at the area of the internal thread receiving the riser pipe. The internal thread has an axially parallel notch which continues the pressure bore 42 in alignment. The valve is screwed onto the container and the riser pipe into the internal thread of the valve body 10 screwed in, the pressure bore 42 is connected to the internal pressure space of the container via the notch of the internal thread. The internal pressure of the container thus acts on the inside of the membrane disk of the pressure gauge 30 used in the pressure gauge socket 30 via the notch of the internal thread, the pressure bore 42 and the cross bore 41. In the same way, the internal pressure of the container is applied to the test connection 40 via the transverse bore 41 for a possible check and acts on the rupture disk safety device.

BezugszeichenlisteReference list

1010th
VentilkörperValve body
1111
AußengewindeExternal thread
1212th
Ansatzapproach
1313
LagerbohrungBearing bore
1414
Gabelfork
2020th
VentilbohrungValve bore
2121
AnschlußstutzenConnecting piece
2222
AnschlußöffnungConnection opening
3030th
Manometer-StutzenPressure gauge socket
3131
AusdrehungRotation
3232
InnenschulterInner shoulder
3333
Einstichpuncture
4040
PrüfstutzenTest nozzle
4141
QuerbohrungCross hole
4242
DruckbohrungPressure hole

Claims (6)

Druckhebel-Ventil für Dauerdruck-Feuerlöscher, mit einem Ventilkörper aus Metall, vorzugsweise aus Messing, der auf einen Löschmittelbehälter mit Steigrohr aufschraubbar ist, mit einer den Ventilkörper axial durchsetzenden, mit dem Steigrohr axial fluchtenden Ventilbohrung, mit einem in der Ventilbohrung geführten Ventilstößel, der zum Öffnen und Schließen der Ventilbohrung mittels des Druckhebels axial bewegbar ist, mit einer radial in die Ventilbohrung mündenden Anschlußöffnung, mit einem über eine Druckbohrung mit dem Behälterinneren in Verbindung stehenden Manometer und mit einem über eine Druckbohrung mit dem Behälterinneren in Verbindung stehenden Prüfstutzen, dadurch gekennzeichnet, daß das Manometer in einen einstückig an dem Ventilkörper (10) angeformten Manometerstutzen (30) eingesetzt ist.Pressure lever valve for continuous pressure fire extinguisher, with a valve body made of metal, preferably made of brass, which can be screwed onto an extinguishing agent container with a riser pipe, with a valve bore axially penetrating the valve body, axially aligned with the riser pipe, with a valve tappet guided in the valve bore, the for opening and closing the valve bore is axially movable by means of the pressure lever, with a connection opening opening radially into the valve bore, with a pressure gauge connected to the interior of the container via a pressure bore and with a test nozzle connected to the interior of the container via a pressure bore that the manometer is inserted into a manometer socket (30) integrally formed on the valve body (10). Ventil nach Anspruch 1, dadurch gekennzeichnet, daß das Manometer eine in eine Ausdrehung (31) des Manometerstutzens eingelötete Membranscheibe und eine mittels eines Sprengrings in der Ausdrehung (31) befestigte Anzeigemechanik aufweist.Valve according to claim 1, characterized in that the pressure gauge has a membrane disk soldered into a recess (31) of the pressure gauge socket and a display mechanism fastened in the recess (31) by means of a snap ring. Ventil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Manometer und der Prüfstutzen (40) über eine zu der Ventilbohrung (20) windschiefe Querbohrung (41) miteinander in Verbindung stehen und daß nur eine gemeinsame Druckbohrung (42) für das Manometer und den Prüfstutzen (40) vorgesehen ist.Valve according to claim 1 or 2, characterized in that the pressure gauge and the test socket (40) are connected to one another via a transverse bore (41) which is oblique to the valve bore (20) and that only a common pressure bore (42) for the pressure gauge and the Test socket (40) is provided. Ventil nach Anspruch 3, dadurch gekennzeichnet, daß die Druckbohrung (42) parallel und achsversetzt zur Ventilbohrung (20) angeordnet ist und in die Querbohrung (41) mündet.Valve according to claim 3, characterized in that the Pressure bore (42) is arranged parallel and offset to the valve bore (20) and opens into the transverse bore (41). Ventil nach Anspruch 4, dadurch gekennzeichnet, daß die Druckbohrung (42) außerhalb des Steigrohres in den Behälter mündet.Valve according to claim 4, characterized in that the pressure bore (42) opens into the container outside the riser pipe. Ventil nach Anspruch 5, dadurch gekennzeichnet, daß sich an die Druckbohrung (42) axial fluchtend eine achsparallel verlaufende Einkerbung des das Steigrohr aufnehmenden Innengewindes des Ventilkörpers (10) anschließt.Valve according to Claim 5, characterized in that an axially parallel notch of the internal thread of the valve body (10) receiving the riser pipe adjoins the pressure bore (42) in axial alignment.
EP97101877A 1996-02-09 1997-02-06 Pressure handle valve for permanently presurized fire extinguisher Expired - Lifetime EP0788815B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29602248U 1996-02-09
DE29602248U DE29602248U1 (en) 1996-02-09 1996-02-09 Pressure lever valve for continuous pressure fire extinguishers

Publications (4)

Publication Number Publication Date
EP0788815A2 true EP0788815A2 (en) 1997-08-13
EP0788815A3 EP0788815A3 (en) 1998-05-20
EP0788815B1 EP0788815B1 (en) 2000-05-31
EP0788815B2 EP0788815B2 (en) 2003-09-24

Family

ID=8019228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101877A Expired - Lifetime EP0788815B2 (en) 1996-02-09 1997-02-06 Pressure handle valve for permanently presurized fire extinguisher

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EP (1) EP0788815B2 (en)
AT (1) ATE193458T1 (en)
DE (2) DE29602248U1 (en)
ES (1) ES2148850T5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1181956A2 (en) 2000-08-22 2002-02-27 SAE Antincendio S.n.c. A system for connecting a manometer to the dump valve for pressure extinguishers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2155318B1 (en) * 1998-02-05 2001-12-01 Salmeron Mercedes Gonzalez HEAD FOR FIRE EXTINGUISHERS.
ES2328772B1 (en) * 2007-07-25 2010-09-14 Aykan Xxi, S.L. POLYVALENT VALVE FOR FIRE EXTINGUISHERS.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406359A (en) † 1973-02-07 1975-09-17 Chubb Fire Security Ltd Fire extinghuishing apparatus
US4046156A (en) * 1975-12-04 1977-09-06 Systron-Donner Corporation Explosion discharge valve
EP0141563A2 (en) * 1983-10-21 1985-05-15 Roger Carr Powder type fire extinguisher
DE3733224A1 (en) † 1986-10-01 1988-04-14 Preussag Ag Bauwesen Hand-held fire extinguisher
USD334826S (en) † 1991-07-18 1993-04-13 Mija Industries, Inc. Integral gauge and fire extinguisher valve housing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO108416B1 (en) † 1993-04-01 1994-05-31 Neculai Stirbei Pressurized extinguisher

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406359A (en) † 1973-02-07 1975-09-17 Chubb Fire Security Ltd Fire extinghuishing apparatus
US4046156A (en) * 1975-12-04 1977-09-06 Systron-Donner Corporation Explosion discharge valve
EP0141563A2 (en) * 1983-10-21 1985-05-15 Roger Carr Powder type fire extinguisher
DE3733224A1 (en) † 1986-10-01 1988-04-14 Preussag Ag Bauwesen Hand-held fire extinguisher
USD334826S (en) † 1991-07-18 1993-04-13 Mija Industries, Inc. Integral gauge and fire extinguisher valve housing

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Title
Accessori per serbatoi (G.P.L.) < 12/09/1988 †
CPF Accessori Antincendio < 12/09/1988 †
Dizionario d'ingegneria, p. 499, manovale, 1974 †
The MIJA Univalve von 1994 †
Valvola CPF 1974-1975 ohne Datum †

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1181956A2 (en) 2000-08-22 2002-02-27 SAE Antincendio S.n.c. A system for connecting a manometer to the dump valve for pressure extinguishers

Also Published As

Publication number Publication date
EP0788815A3 (en) 1998-05-20
EP0788815B2 (en) 2003-09-24
ATE193458T1 (en) 2000-06-15
DE59701789D1 (en) 2000-07-06
ES2148850T5 (en) 2004-06-16
EP0788815B1 (en) 2000-05-31
ES2148850T3 (en) 2000-10-16
DE29602248U1 (en) 1996-04-11

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