EP0572501B1 - Radiator valve - Google Patents

Radiator valve Download PDF

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Publication number
EP0572501B1
EP0572501B1 EP92905636A EP92905636A EP0572501B1 EP 0572501 B1 EP0572501 B1 EP 0572501B1 EP 92905636 A EP92905636 A EP 92905636A EP 92905636 A EP92905636 A EP 92905636A EP 0572501 B1 EP0572501 B1 EP 0572501B1
Authority
EP
European Patent Office
Prior art keywords
valve
radiator
spindle
closure member
housing
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.)
Expired - Lifetime
Application number
EP92905636A
Other languages
German (de)
French (fr)
Other versions
EP0572501A1 (en
Inventor
Helmut Letzel
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.)
Metallwerke Neheim Goecke & Co GmbH
Original Assignee
Metallwerke Neheim Goecke & Co 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 Metallwerke Neheim Goecke & Co GmbH filed Critical Metallwerke Neheim Goecke & Co GmbH
Publication of EP0572501A1 publication Critical patent/EP0572501A1/en
Application granted granted Critical
Publication of EP0572501B1 publication Critical patent/EP0572501B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
    • F24D19/088—Draining arrangements

Definitions

  • the invention relates to a heating valve according to the preamble of claim 1, which is used in a straight seat or inclined seat construction in heating systems with several radiators and different strands predominantly in the return.
  • the corresponding part of the system can be emptied via such heating valves, which serve to shut off a line.
  • a generic heating valve is known from DE-GM 71 11 825.
  • a hollow spindle which also serves for presetting the flow rate, is screwed into the screw socket of the housing and can be displaced via a screw cap against the valve seat in the housing for blocking and for presetting.
  • a ball valve is arranged in the hollow valve spindle, via which the line or a radiator can be emptied. The ball can be moved from the outside against the pressure of the return spring through the hollow valve spindle using a screw-on emptying device and can thus be lifted off its valve seat inside the valve spindle. The front part of this valve spindle is used for presetting.
  • the object of the invention is to propose a heating valve of the type mentioned, which can be combined in a simple manner with a pressure regulator.
  • the object of the invention is achieved with a heating valve with all the features of claim 1.
  • a controller can be attached to such a heating valve according to the invention, which can be used as a shut-off valve with drainage function and presetting possibility, without the valve housing or the upper part having to be mounted.
  • the controller engages with a corresponding actuator in the hollow valve spindle and acts against the second closure piece in this valve spindle.
  • Such a heating valve can therefore be converted into a control valve in a simple manner.
  • the controller can be placed on the outer end of the valve spindle.
  • the controller is thus independent of the housing and can advantageously be used on different valve sizes with different housings, but with the same valve stem end design.
  • the number 1 denotes the housing of a heating valve.
  • the connecting pieces 11 and 12 are indicated opposite, which lead to the strand or to the radiator.
  • the screw socket 13 serves to receive the screwed-in valve upper part 2.
  • a valve seat 14 is formed in the interior of the housing 1, against which a first closure piece 4 arranged on the valve spindle 3 acts. In principle, the position of this first closure piece 4 relative to the corresponding valve seat 14 determines the presetting for the flow. With this first closure piece 4, the heating valve can be shut off. In the axial cavity 31 of the valve spindle 3, a double-acting second closure piece 5 can be displaced against the pressure of the spring 6.
  • the second closure piece 5 With its upper end piece 51 it forms with the valve seat 33 in the drain valve in the hollow spindle 3.
  • the second closure piece 5 can be lifted off from this valve seat 33 with its closure piece end 51.
  • the water flows from the strand or the heater through the hollow second closure piece 5 into the cavity 31 of the valve spindle and from there to the outside into the attached emptying device.
  • the cavity 53 in the second closure piece 5 is open to the housing. It ends below the closure piece end 51, so that the valve seat 33 is closed in the state shown in FIG.
  • the opposite closure piece end 52 protrudes through the first valve closure piece 4 and forms with the protruding section the contour of the first closure piece and determines the throttle gap with it.
  • a screw cap 8 is placed on a rotary driver 32 in a rotationally fixed manner and secured by a cap 82 placed thereon, which at the same time closes the hollow valve stem 3.
  • the presetting is carried out after removing the cap 82 and the screw cap 8.
  • the valve spindle 3 is not moved. This is followed by a corresponding rotation of the indicator ring 7, by means of which a toothed presetting nut 10 seated in the indicator ring 7 is displaced with the adjusting ring 10a accommodated in a rotationally fixed manner and entrains the valve spindle 3 in the axial direction.
  • the corresponding rotary driving connection is used in section 21 in the valve upper part 2 in connection with the corresponding design of the valve spindle 3 in this area.
  • a threaded section 22 is formed, into which the indicator ring 7 engages.
  • a regulator preferably a diaphragm regulator 9
  • a correspondingly designed section 34 which also serves to receive the cap 82.
  • Its associated screw sleeve 91 protrudes into a shoulder 81 on the screw cap 8.
  • an actuating element 92 in the form of a tube is fastened, which protrudes into the hollow valve spindle 3 and acts with its free end against the second closure piece 5.
  • the second closure piece 5 is displaced with its closure piece end 52 in the direction of the valve seat 14 in the housing 1 and thus controls the flow in a controlled manner.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Temperature-Responsive Valves (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Lift Valve (AREA)
  • Fluid-Driven Valves (AREA)
  • Details Of Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

A radiator valve comprises a housing (1) on which are arranged a pipe union (11) for connection to the radiator and a screw socket (13) for receiving the first closure piece (4), which is arranged on a hollow valve spindle (3). The first closure piece (4), together with a valve seat (33) in the housing (1), forms a choke-like preset device for the throughflow. To allow the line or radiator to be emptied through the hollow valve spindle (3), the hollow valve spindle (3) contains a second valve closure piece (5), which can be actuated from the outside against the force of a spring and moved forward from the outside with regard to a corresponding valve seat in the valve spindle (3). The second hollow valve closure piece (5) is double acting and can be moved, with its end (52) opposite the discharge valve seat (33), through the first valve closure piece (4) toward the housing valve seat (14). A controller (9) which acts on the second valve closure piece (4) can be placed on the valve.

Description

Die Erfindung betrifft ein Heizungsventil nach dem Oberbegriff des Anspruches 1, welches in Geradsitz- oder Schrägsitzbauweise in Heizungsanlagen mit mehreren Heizkörpern und verschiedenen Strängen vorwiegend im Rücklauf eingesetzt wird. Über solche Heizungsventile, die der Absperrung eines Stranges dienen, läßt sich der entsprechende Teil der Anlage entleeren.The invention relates to a heating valve according to the preamble of claim 1, which is used in a straight seat or inclined seat construction in heating systems with several radiators and different strands predominantly in the return. The corresponding part of the system can be emptied via such heating valves, which serve to shut off a line.

Bekannt ist ein gattungsgemäßes Heizungsventil aus dem DE-GM 71 11 825. Bei diesem Heizungsventil ist im Schraubstutzen des Gehäuses eine ebenfalls der Voreinstellung der Durchflußmenge dienende hohle Spindel eingeschraubt, die über eine Schraubkappe gegen den Ventilsitz im Gehäuse zur Absperrung und zur Voreinstellung verschiebbar ist. In der hohlen Ventilspindel ist ein Kugelventil angeordnet, über welches der Strang bzw. ein Heizkörper entleert werden können. Durch die hohle Ventilspindel hindurch kann von außen mit einer aufschraubbaren Entleervorrichtung die Kugel gegen den Druck der Rückstellfeder verschoben und damit von ihrem Ventilsitz im Inneren der Ventilspindel abgehoben werden. Der vordere Teil dieser Ventilspindel dient der Voreinstellung.A generic heating valve is known from DE-GM 71 11 825. With this heating valve, a hollow spindle, which also serves for presetting the flow rate, is screwed into the screw socket of the housing and can be displaced via a screw cap against the valve seat in the housing for blocking and for presetting. A ball valve is arranged in the hollow valve spindle, via which the line or a radiator can be emptied. The ball can be moved from the outside against the pressure of the return spring through the hollow valve spindle using a screw-on emptying device and can thus be lifted off its valve seat inside the valve spindle. The front part of this valve spindle is used for presetting.

Mit solchen Heizungsventilen wird durch entsprechende Voreinstellung im jeweiligen Strang den notwendigen Betriebsbedingungen Rechnung getragen. Es zeigt sich jedoch häufig, daß in größeren Anlagen die Betriebsbedingungen schwanken, so daß eine einmalige Voreinstellung des Durchflusses unzureichend ist. In der Regel wird dann an der entsprechenden Stelle ein Regelventil, meistens ein Membranregler, eingesetzt. Ein solcher nachträglicher Einsatz erfordert hohe Montagekosten.With such heating valves, the necessary operating conditions are taken into account by appropriate presetting in the respective branch. However, it is often found that the operating conditions fluctuate in larger systems, so that a single presetting of the flow is inadequate. As a rule, a control valve, usually a membrane regulator, is then used at the appropriate point. Such subsequent use requires high assembly costs.

Die Aufgabe der Erfindung besteht darin, ein Heizungsventil der eingangs genannten Art vorzuschlagen, welches in einfacher Weise mit einem Druckregler kombinierbar ist.The object of the invention is to propose a heating valve of the type mentioned, which can be combined in a simple manner with a pressure regulator.

Gelöst wird die Erfindungsaufgabe mit einem Heizungsventil mit sämtlichen Merkmalen des Anspruches 1.The object of the invention is achieved with a heating valve with all the features of claim 1.

An einem solchen erfindungsgemäßen Heizungsventil, welches als Absperrventil mit Entleerungsfunktion und Voreinstellmöglichkeit eingesetzt werden kann, läßt sich ein Regler ansetzen, ohne daß das Ventilgehäuse oder das Oberteil zu montieren ist. Der Regler greift dabei mit einem entsprechenden Betätigungsglied in die hohle Ventilspindel ein und wirkt gegen das zweite Verschlußstück in dieser Ventilspindel. Auf einfache Weise kann daher ein solches Heizungsventil zum Regelventil umgestaltet werden.A controller can be attached to such a heating valve according to the invention, which can be used as a shut-off valve with drainage function and presetting possibility, without the valve housing or the upper part having to be mounted. The controller engages with a corresponding actuator in the hollow valve spindle and acts against the second closure piece in this valve spindle. Such a heating valve can therefore be converted into a control valve in a simple manner.

Nach einer bevorzugten Ausführungsart der Erfindung gemäß Anspruch 2 läßt sich der Regler am äußeren Ende der Ventilspindel aufsetzen. Der Regler ist damit gehäuseunabhängig und läßt sich in vorteilhafter Weise an verschiedenen Ventilgrößen mit unterschiedlichen Gehäusen, jedoch gleicher Ventilspindelendgestaltung, einsetzen.According to a preferred embodiment of the invention according to claim 2, the controller can be placed on the outer end of the valve spindle. The controller is thus independent of the housing and can advantageously be used on different valve sizes with different housings, but with the same valve stem end design.

In weiterer Ausgestaltung der Erfindung wird gemäß Anspruch 4 eine Möglichkeit aufgezeigt, die Voreinstellung von außen sichtbar zu gestalten. Gemäß Anspruch 5 bilden Schraubkappe und Anzeigering die von außen sichtbare Voreinstellungsanzeige.In a further embodiment of the invention, a possibility is shown according to claim 4, to make the presetting visible from the outside. According to claim 5 screw cap and indicator ring form the preset display visible from the outside.

Anhand eines abgebildeten Ausführungsbeispieles wird im folgenden die Erfindung näher erläutert. Es zeigen:

Fig. 1
einen Längsschnitt durch ein als Absperrventil ausgestaltetes Heizungsventil mit einer vorgegebenen Voreinstellung
und
Fig. 2
die Kombination eines Heizungsventiles gemäß Figur 1 mit einem an der Ventilspindel aufgesetzten Membranregler.
The invention is explained in more detail below on the basis of an illustrated exemplary embodiment. Show it:
Fig. 1
a longitudinal section through a heating valve designed as a shut-off valve with a predetermined default
and
Fig. 2
the combination of a heating valve according to FIG. 1 with a membrane regulator attached to the valve spindle.

Zunächst wird auf Figur 1 Bezug genommen. Mit der Ziffer 1 ist das Gehäuse eines Heizungsventiles bezeichnet. An diesem Gehäuse 1 sind sich gegenüberliegend die Anschlußstutzen 11 und 12 angedeutet, die zum Strang bzw. zum Heizkörper führen. Der Schraubstutzen 13 dient der Aufnahme des eingeschraubten Ventiloberteiles 2. Im Inneren des Gehäuses 1 ist ein Ventilsitz 14 ausgebildet, gegen den ein erstes an der Ventilspindel 3 angeordnetes Verschlußstück 4 wirkt. Im Prinzip bestimmt die Stellung dieses ersten Verschlußstückes 4 zum entsprechenden Ventilsitz 14 die Voreinstellung für den Durchfluß. Mit diesem ersten Verschlußstück 4 ist das Heizungsventil absperrbar. In dem axialen Hohlraum 31 der Ventilspindel 3 ist gegen den Druck der Feder 6 ein doppelt wirkendes zweites Verschlußstück 5 verschiebbar. Mit seinem oberen Verschlußstückende 51 bildet es mit dem Ventilsitz 33 in in der hohlen Spindel 3 das Entleerungsventil. Durch Aufsetzen einer nicht dargestellten Entleerungsvorrichtung ist das zweite Verschlußstück 5 mit seinem Verschlußstückende 51 von diesem Ventilsitz 33 abhebbar. Zur Entleerung strömt das Wasser aus dem Strang oder dem Heizkörper durch das hohle zweite Verschlußstück 5 in den Hohlraum 31 der Ventilspindel und von dort nach außen in die aufgesetzte Entleervorrichtung. Der Hohlraum 53 im zweiten Verschlußstück 5 ist zum Gehäuse hin offen. Er endet unterhalb des Verschlußstückendes 51, so daß im in Figur 1 gezeigten Zustand der Ventilsitz 33 verschlossen ist.Reference is first made to FIG. 1. The number 1 denotes the housing of a heating valve. On this housing 1, the connecting pieces 11 and 12 are indicated opposite, which lead to the strand or to the radiator. The screw socket 13 serves to receive the screwed-in valve upper part 2. A valve seat 14 is formed in the interior of the housing 1, against which a first closure piece 4 arranged on the valve spindle 3 acts. In principle, the position of this first closure piece 4 relative to the corresponding valve seat 14 determines the presetting for the flow. With this first closure piece 4, the heating valve can be shut off. In the axial cavity 31 of the valve spindle 3, a double-acting second closure piece 5 can be displaced against the pressure of the spring 6. With its upper end piece 51 it forms with the valve seat 33 in the drain valve in the hollow spindle 3. By placing an emptying device, not shown, the second closure piece 5 can be lifted off from this valve seat 33 with its closure piece end 51. For emptying, the water flows from the strand or the heater through the hollow second closure piece 5 into the cavity 31 of the valve spindle and from there to the outside into the attached emptying device. The cavity 53 in the second closure piece 5 is open to the housing. It ends below the closure piece end 51, so that the valve seat 33 is closed in the state shown in FIG.

Das gegenüberliegende Verschlußstückende 52 ragt durch das erste Ventilverschlußstück 4 nach außen hindurch und bildet mit dem hindurchragenden Abschnitt die Kontur des ersten Verschlußstückes und bestimmt mit diesem den Drosselspalt. An dem aus dem Ventiloberteil 2 herausragenden Ende der Ventilspindel 3 ist auf einer Drehmitnahme 32 eine Schraubkappe 8 drehfest aufgesetzt und durch eine darüber fest aufgesetzte Kappe 82 gesichert, die gleichzeitig die hohle Ventilspindel 3 verschließt.The opposite closure piece end 52 protrudes through the first valve closure piece 4 and forms with the protruding section the contour of the first closure piece and determines the throttle gap with it. At the end of the valve stem 3 protruding from the valve upper part 2, a screw cap 8 is placed on a rotary driver 32 in a rotationally fixed manner and secured by a cap 82 placed thereon, which at the same time closes the hollow valve stem 3.

Die Voreinstellung erfolgt nach Abnahme der Kappe 82 und der Schraubkappe 8. Dabei wird die Ventilspindel 3 nicht bewegt. Danach erfolgt eine entsprechende Verdrehung des Anzeigeringes 7, über den eine verzahnt im Anzeigering 7 sitzende Voreinstellmutter 10 mit dem darin drehfest aufgenommenen Stellring 10a verschoben wird und die Ventilspindel 3 in axialer Richtung mitnimmt. Der entsprechenden Drehmitnahmeverbindung dient der Abschnitt 21 im Ventiloberteil 2 in Verbindung mit der entsprechenden Ausbildung der Ventilspindel 3 in diesem Bereich. Außen ist an dem Ventiloberteil 2 ein Gewindeabschnitt 22 ausgebildet, in den der Anzeigering 7 eingreift.The presetting is carried out after removing the cap 82 and the screw cap 8. The valve spindle 3 is not moved. This is followed by a corresponding rotation of the indicator ring 7, by means of which a toothed presetting nut 10 seated in the indicator ring 7 is displaced with the adjusting ring 10a accommodated in a rotationally fixed manner and entrains the valve spindle 3 in the axial direction. The corresponding rotary driving connection is used in section 21 in the valve upper part 2 in connection with the corresponding design of the valve spindle 3 in this area. On the outside of the valve upper part 2, a threaded section 22 is formed, into which the indicator ring 7 engages.

Wie Figur 2 zeigt, ist auf das äußere Ende der Ventilspindel 3 mit einem entsprechend ausgebildeten Abschnitt 34, der auch der Aufnahme der Kappe 82 dient, ein Regler, vorzugsweise ein Membranregler 9, aufsetzbar. Seine zugehörige Schraubhülse 91 ragt dabei in einen Absatz 81 an der Schraubkappe 8 ein. Am Regelglied, im Falle des Membranreglers die Membran, ist ein Betätigungsglied 92 in Form eines Rohres befestigt, welches in die hohle Ventilspindel 3 hineinragt und mit seinem freien Ende gegen das zweite Verschlußstück 5 wirkt. Über dieses Betätigungsglied wird das zweite Verschlußstück 5 mit seinem Verschlußstückende 52 in Richtung auf den Ventilsitz 14 im Gehäuse 1 verschoben und steuert damit geregelt den Durchfluß.As FIG. 2 shows, a regulator, preferably a diaphragm regulator 9, can be placed on the outer end of the valve spindle 3 with a correspondingly designed section 34, which also serves to receive the cap 82. Its associated screw sleeve 91 protrudes into a shoulder 81 on the screw cap 8. On the control element, in the case of the membrane regulator the membrane, an actuating element 92 in the form of a tube is fastened, which protrudes into the hollow valve spindle 3 and acts with its free end against the second closure piece 5. Via this actuator, the second closure piece 5 is displaced with its closure piece end 52 in the direction of the valve seat 14 in the housing 1 and thus controls the flow in a controlled manner.

Claims (5)

  1. Radiator valve, wherein there are provided on a housing (1) a pipe union (11) for connection to the line, a pipe union (12) for connection to the radiator and a screw socket (13) for receiving a first closure member (4), which is disposed on a hollow valve spindle (3) and forms with a valve seat (14) in the housing a throttle-like preset device for the throughflow, and a second valve closure member (5), which is actuatable from externally in opposition to the pressure of a spring (6), is displaceable in the hollow valve spindle (3) from externally relative to a corresponding valve seat (33) in the valve spindle (3) for draining the line or the radiator via the valve spindle, characterised in that the second hollow valve closure member (5) is double-acting and is displaceable through the first valve closure member (4) in a direction towards the housing valve seat (14) with its end (52) situated opposite the discharge valve seat (33), a controller (9) being mountable on the valve and acting on the second valve closure member.
  2. Radiator valve according to claim 1, characterised in that a screw cap (8) is mounted on the external end of the valve spindle (3), which is upwardly received in an upper valve portion (2) so as to be rotationally connectable therewith.
  3. Radiator valve according to claim 2, characterised in that a receiving means (34) for a controller, preferably a diaphragm controller (9), is provided on the external end of the valve spindle (3), which end protrudes through the screw cap (8), said controller engaging in the interior of the valve spindle (3) by means of an actuating member (92) and acting against the spring-loaded second closure member (5).
  4. Radiator valve according to claim 2, characterised in that a presetting nut (10) is screw-mounted on a terminally situated external threaded portion (23) of the upper portion (2) so as to be axially displaceable to a limited extent, said nut being in rotary connection with a setting ring (10a), which concentrically surrounds such connection and engages, with an external toothing, in a corresponding internal toothing of an indicator ring (7), which concentrically surrounds said setting ring, and said setting ring can be slipped from this indicator ring when defined in the axial direction in order to release the toothed connection.
  5. Radiator valve according to claim 4, characterised in that the screw cap (8) covers the indicator ring (7).
EP92905636A 1991-02-28 1992-02-27 Radiator valve Expired - Lifetime EP0572501B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4106278A DE4106278C2 (en) 1991-02-28 1991-02-28 Heating valve
DE4106278 1991-02-28
PCT/DE1992/000158 WO1992015825A1 (en) 1991-02-28 1992-02-27 Radiator valve

Publications (2)

Publication Number Publication Date
EP0572501A1 EP0572501A1 (en) 1993-12-08
EP0572501B1 true EP0572501B1 (en) 1994-07-20

Family

ID=6426071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92905636A Expired - Lifetime EP0572501B1 (en) 1991-02-28 1992-02-27 Radiator valve

Country Status (9)

Country Link
EP (1) EP0572501B1 (en)
JP (1) JP3142564B2 (en)
KR (1) KR0186036B1 (en)
AT (1) ATE108887T1 (en)
AU (1) AU1335292A (en)
DE (2) DE4106278C2 (en)
DK (1) DK0572501T3 (en)
ES (1) ES2056709T3 (en)
WO (1) WO1992015825A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443324C1 (en) * 1994-12-06 1996-01-18 Neheim Goeke & Co Metall Valve for heating, refrigeration and hot water plants
DE9420412U1 (en) * 1994-12-21 1995-02-16 Metallwerke Neheim Goeke & Co Gmbh, 59755 Arnsberg Valve for heating, hot water or cooling systems
DE19831993C1 (en) * 1998-07-16 2000-03-30 F W Oventrop Gmbh & Co Kg Valve for liquid medium e.g. for heating or cooling or air conditioning systems with a flow quantity setting arrangement
CN102996848A (en) * 2011-09-08 2013-03-27 彭新民 Diaphragm stop valve with double diaphragms
DE102013106046A1 (en) * 2013-06-11 2014-12-11 Jürgen Schlösser Armaturen GmbH valve assembly
JP6653947B2 (en) * 2015-05-13 2020-02-26 アクア株式会社 Clothing processing equipment
CN111853253B (en) * 2020-06-29 2022-09-09 湖北沃特威汽车电子有限公司 Cylinder control valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH373234A (en) * 1959-08-19 1963-11-15 Karrer Weber & Cie Ag Housing storage unit for water pipes
DE7111825U (en) * 1971-03-27 1971-08-26 Metallwerke Neuheim Goeke & Co Kg SHUT-OFF VALVE IN PARTICULAR FOR INSTALLATION BETWEEN RADIATOR AND THEIR RETURN LINE
GB8717325D0 (en) * 1987-07-22 1987-08-26 South Staffordshire Waterworks Making third flow connection to stop valve
DE3901323C1 (en) * 1989-01-18 1990-02-01 Metallwerke Neheim Goeke & Co Gmbh, 5760 Arnsberg, De Radiator drain valve
DE3917625A1 (en) * 1989-05-31 1990-12-06 Schloesser Gmbh Domestic radiator valve assembly - is connected to hose coupling for drainage and has spindle turned by external tool

Also Published As

Publication number Publication date
JPH06508417A (en) 1994-09-22
EP0572501A1 (en) 1993-12-08
ATE108887T1 (en) 1994-08-15
DE59200301D1 (en) 1994-08-25
AU1335292A (en) 1992-10-06
DE4106278C2 (en) 1999-04-15
JP3142564B2 (en) 2001-03-07
DK0572501T3 (en) 1994-09-26
WO1992015825A1 (en) 1992-09-17
DE4106278A1 (en) 1992-09-03
ES2056709T3 (en) 1994-10-01
KR0186036B1 (en) 1999-04-15

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