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NL9001451A - THREE-WAY VALVE. - Google Patents

THREE-WAY VALVE. Download PDF

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Publication number
NL9001451A
NL9001451A NL9001451A NL9001451A NL9001451A NL 9001451 A NL9001451 A NL 9001451A NL 9001451 A NL9001451 A NL 9001451A NL 9001451 A NL9001451 A NL 9001451A NL 9001451 A NL9001451 A NL 9001451A
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NL
Netherlands
Prior art keywords
way valve
valve according
bearing
shut
valve
Prior art date
Application number
NL9001451A
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Dutch (nl)
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Asm Europ
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.)
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Publication date
Application filed by Asm Europ filed Critical Asm Europ
Priority to NL9001451A priority Critical patent/NL9001451A/en
Priority to PCT/NL1991/000108 priority patent/WO1992000477A1/en
Publication of NL9001451A publication Critical patent/NL9001451A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
    • F16K11/163—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns
    • F16K11/165—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns with the rotating spindles parallel to the closure members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Description

Titel: Driewegklep.Title: Three-way valve.

De uitvinding heeft betrekking op een driewegklep voorzien van een huis met een kamer waarin een drietal poorten uitmonden, in welke kamer middelen zijn opgenomen voor het telkens afsluiten van ten minste één poort, en welke middelen van buiten af bedienbaar zijn.The invention relates to a three-way valve provided with a house with a chamber into which three gates open, in which chamber means are included for closing at least one gate in each case, and which means can be operated from the outside.

Dergelijke algemeen bekende driewegkleppen hebben het nadeel dat steeds twee poorten met elkaar in verbinding staan, dat wil zeggen dat er slechts één tegelijkertijd is afgesloten. Bovendien bestaat een ander nadeel daaruit dat bij enkele van de bekende driewegkleppen tijdens de bediening van de poortafsluitmiddelen alle drie poorten met elkaar in verbinding staan.Such generally known three-way valves have the drawback that two ports are always connected to each other, i.e. only one is closed at a time. In addition, another drawback is that in some of the known three-way valves, all three ports are connected to each other during the operation of the gate closing means.

De uitvinding beoogt genoemde nadelen op te heffen en een driewegklep te verschaffen waarbij is gewaarborgd dat telkens slechts twee poorten met elkaar in verbinding staan en waarbij is gewaarborgd dat nooit de mogelijkheid aanwezig is om alle drie poorten ten opzichte van elkaar te openen.The object of the invention is to eliminate the drawbacks mentioned and to provide a three-way valve, whereby it is ensured that only two gates are connected to each other and that it is ensured that the possibility of opening all three gates relative to each other is never present.

Hiertoe vertoont de driewegklep volgens de uitvinding het kenmerk, dat genoemde middelen zodanig zijn uitgevoerd, dat in wezen drie standen mogelijk zijn nl. een gesloten midden- of ruststand, alsmede een tweede stand waarin een toe- en afvoer met elkaar in verbinding staan en een derde stand, waarin een andere toe- en afvoer met elkaar in verbinding staan, en waarbij de overgang van de ene naar de andere stand alleen via een gesloten tussenstand kan plaatsvinden.To this end, the three-way valve according to the invention is characterized in that said means are designed in such a way that essentially three positions are possible, namely a closed middle or rest position, as well as a second position in which an inlet and outlet are connected and a third position, in which another inlet and outlet are connected to each other, and the transition from one position to the other can only take place via a closed intermediate position.

Door deze maatregel wordt een optimale veiligheidswaarborg verkregen, waarbij wordt voorkomen dat ongewenste toe- of afvoeropeningen met elkaar in verbinding kunnen worden gebracht. Dit is in het bijzonder van belang wanneer met dergelijke kleppen gassen worden gestuurd die bij vermenging kans op explosies tot gevolg hebben.This measure provides an optimum safety guarantee, whereby it is prevented that undesired supply or discharge openings can be connected to each other. This is of particular importance when such valves are used to send gases which, when mixed, cause explosions.

Daarbij kunnen de genoemde middelen zijn voorzien van een excentrisch in de bedieningsmiddelen opgesteld lager. Dit lager kan daarbij werkzaam zijn verbonden met een tweetal poortafsluitkleppen.The said means can herein be provided with a bearing arranged eccentrically in the operating means. This bearing can then be operatively connected to two gate closing valves.

De poortafsluitkleppen kunnen daarbij zijn voorzien van klepstelen die op zich onder invloed staan van het excentrisch opgestelde lager.The gate closing valves can herein be provided with valve stems which are themselves influenced by the eccentrically arranged bearing.

Daarbij kan zich tussen het excentrisch opgestelde lager en elke klepsteel een tuimelaar bevinden.In addition, a rocker arm may be located between the eccentrically arranged bearing and each valve stem.

Doordat het huis in wezen bestaat uit een bovenblok en een onderblok welke van elkaar zijn gescheiden door een flensplaat of soortgelijk afsluitorgaan en de poorten uitmonden in het onderblok wordt gewaarborgd dat de omgeving vrij blijft van het te verwerken fluïdum.Since the housing essentially consists of an upper block and a lower block which are separated from each other by a flange plate or similar closing member and the ports open into the lower block, it is ensured that the environment remains free of the fluid to be processed.

In dit opzicht wordt een verdere verbetering verkregen wanneer het zich in het onderblok bevindende deel van elke klepsteel is omgeven door een fluïdumdichte balg.In this regard, a further improvement is obtained when the lower block portion of each valve stem is surrounded by a fluid-tight bellows.

Verbetering van de werking van de inrichting wordt verkregen wanneer elke klepsteel is omgeven door een veer die zodanig is afgesteund dat de betreffende klep naar de gesloten stand wordt gedrongen. Genoemde veer kan zich daarbij in het bovenblok bevinden.Improvement of the operation of the device is obtained when each valve stem is surrounded by a spring which is supported in such a way that the relevant valve is forced to the closed position. The said spring can be located in the top block.

Een verdere waarborg voor een fluïdumdichte constructie wordt verkregen door elke afsluitklep door middel van een lasverbinding te verbinden met de betreffende klepsteelzijde. Daarbij kan de klepsteelonderzijde zijn voorzien van een koppelstuk waaraan zowel de afsluitklep als de fluïdumdichte balg door lassen zijn verbonden. Op deze wijze wordt een eenvoudige, doch gewaarborgde fluïdumdichte verbinding verkregen .A further guarantee for a fluid-tight construction is obtained by welding each shut-off valve to the relevant valve stem side by means of a welded connection. The valve stem underside can herein be provided with a coupling piece to which both the shut-off valve and the fluid-tight bellows are connected by welding. In this way a simple, yet guaranteed fluid-tight connection is obtained.

Ter verduidelijking van de uitvinding zal thans, onder verwijzing naar de tekening een uitvoeringsvoorbeeld van de driewegklep worden beschreven. In de tekening toont: fig. 1 een schematische dwarsdoorsnede van de driewegklep volgens de uitvinding; fig. 2 een doorsnede volgens de lijn II-II in fig. 1; fig. 3 een doorsnede volgens de lijn III-III in fig. 1; en fig. 4 een schematisch aanzicht van een andere uitvoeringsvorm van de driewegklep.To clarify the invention, an exemplary embodiment of the three-way valve will now be described with reference to the drawing. In the drawing: Fig. 1 shows a schematic cross-section of the three-way valve according to the invention; fig. 2 shows a section according to the line II-II in fig. 1; fig. 3 shows a section according to the line III-III in fig. 1; and Fig. 4 is a schematic view of another embodiment of the three-way valve.

Volgens de tekening is een driewegklep voorzien van een huis 1 bestaande uit een bovenblok 2 en een onderblok 3.According to the drawing, a three-way valve is provided with a housing 1 consisting of an upper block 2 and a lower block 3.

Tussen het boven- en onderblok bevindt zich een flensplaat 4 uitgerust met een afdichtring 5 welke zorgt voor een fluïdum-dichte afsluiting. Aan de bovenzijde van het huis bevindt zich een draaibare bedieningsknop 6, die door middel van een schroef 7 draaibaar is verbonden met het bovenblok 2. Het bovenblok 2 bevat een uitsparing 8 waarin zich een excentrisch aangebrachte naaf 9 uitstrekt. Op genoemd excentrisch opgestelde naaf 9 is een lager 10 gemonteerd.(zie fig. 3).Between the top and bottom block there is a flange plate 4 equipped with a sealing ring 5 which provides a fluid-tight seal. At the top of the housing there is a rotatable operating button 6, which is rotatably connected to the top block 2 by means of a screw 7. The top block 2 contains a recess 8 in which an eccentrically arranged hub 9 extends. A bearing 10 is mounted on said eccentrically arranged hub 9 (see fig. 3).

Genoemd lager 10 kan in een weergegeven uitvoerings-voorbeeld samenwerken met een tweetal diametraal tegenover elkaar opgestelde tuimelaars»11,12 die door middel van assen 13 resp. 14 draaibaar in de uitsparing 8 zijn opgesteld.In a shown exemplary embodiment, said bearing 10 can cooperate with two diametrically opposed tumblers »11, 12 which are arranged by means of shafts 13 and 12, respectively. 14 are rotatably arranged in the recess 8.

De van de met het lager 10 samenwerkende einden van de tuimelaars 11,12 afgekeerde einden grijpen telkens onder steunringen 15 resp. 16 bevestigd op klepstelen 17 resp. 18.The ends remote from the ends of the rocker arms 11, 12 cooperating with the bearing 10 each engage under support rings 15 and 12, respectively. 16 mounted on valve stems 17 and 16, respectively. 18.

De klepstelen 17 resp. 18 reiken in langsrichting door de in zijn algemeenheid met 19 aangeduide kamer aangebracht in het huis 1.The valve stems 17 resp. 18 extend in the longitudinal direction through the chamber generally indicated by 19 arranged in the housing 1.

Aan de klepstelen 17 resp. 18 bevindt zich ter plaatse van het ondereinde van het zich in het bovenblok 2 bevindende deel een kraag 20 resp. 40. Tussen deze kraag en het boveneinde van de kamer 19 bevindt zich telkens een veer 21 resp. 22 teneinde de klepsteel in de naar beneden gerichte stand te dringen.On the valve stems 17 resp. 18, at the location of the lower end of the part located in the top block 2, there is a collar 20, respectively. 40. A spring 21 and resp. 22 to urge the valve stem into the downward position.

De klepsteel is aan de onderzijde voorzien van een afsluitklep 23 resp. 24 ingericht voor samenwerking met kleppoorten 25 resp. 26. Op de buitenwaarts gerichte einden van de kleppoorten 25 resp. 26 sluiten aansluitnippels 27 resp. 28 aan, terwijl op de derde poort 29 een aansluit-nippel 30 aansluit (zie fig. 2).The valve stem is provided at the bottom with a shut-off valve 23 resp. 24 arranged for cooperation with flap ports 25 resp. 26. On the outwardly directed ends of the valve ports 25 resp. 26 close connection nipples 27 resp. 28, while a connecting nipple 30 connects to the third port 29 (see fig. 2).

De verbinding tussen elke afsluitklep en de klepsteel wordt telkens gevormd door een koppelstuk 31 dat op eenvoudige wijze door middel van een schroefverbinding met de onderzijde van de betreffende klepsteel is verbonden: daar dit geheel zich telkens binnen een afdichtingsbalg 32 bevindt behoeft deze verbinding niet fluïdumdicht te zijn. De respectieve afsluitkleppen 23,24 zijn telkens door schroeven aan het koppelstuk bevestigd. Teneinde een fluïdumdichte afsluiting te verkrijgen is rond de klepsteel tussen de flensplaat 4 en een kraag van het koppelstuk genoemde afdichtingsbalg 32 aangebracht . De bevestigingen van de balg bestaan daarbij telkens uit lasnaden.The connection between each shut-off valve and the valve stem is in each case formed by a coupling piece 31 which is simply connected to the underside of the relevant valve stem by means of a screw connection: since this unit is always located within a sealing bellows 32, this connection need not be fluid-tight. to be. The respective shut-off valves 23, 24 are each attached to the coupling piece by screws. In order to obtain a fluid-tight seal, said sealing bellows 32 is arranged around the valve stem between the flange plate 4 and a collar of the coupling piece. The bellows' fixings consist of weld seams.

In de tekening is verder de ene klep in de geopende en de andere klep in de gesloten stand weergegeven.The drawing also shows one valve in the opened and the other valve in the closed position.

De werking van de driewegklep zal duidelijk zijn. Door draaiing van de bedieningsknop zal, als gevolg van de excentrische opstelling van de naaf in de bedieningsknop, elke tuimelaar worden bewogen, dat wil zeggen hetzij naar de geopende stand hetzij naar de gesloten stand van de afsluitklep. De constructie is hierbij zodanig dat het openen van een klep eerst dan plaatsvindt wanneer de andere, met de afsluitklep samenwerkende kleppoort is gesloten. Tussen de geopende respectievelijk gesloten stand bevindt zich altijd een neutrale stand waarin, in het onderhavige geval beide afsluitkleppen de respectieve poorten gesloten zullen houden.The operation of the three-way valve will be clear. Rotation of the control knob will cause each rocker arm to be moved, i.e., either to the open position or to the closed position of the shutoff valve, due to the eccentric arrangement of the hub in the control knob. The construction is such that the opening of a valve only takes place when the other valve port cooperating with the shut-off valve is closed. Between the opened or closed position there is always a neutral position in which, in the present case, both shut-off valves will keep the respective ports closed.

In de hiervoor beschreven uitvoeringsvorm is in wezen sprake van een mechanische constructie, doch het zal duidelijk zijn dat ook andere constructies mogelijk zijn, zo zal b.v. ook een pneumatische, hydraulische, elektronische of andere oplossing kunnen worden gekozen om het beoogde doel te bereiken: als voorbeeld hiervan wordt gewezen op de bijgaande figuur 4 waarin zeer schematisch een mogelijke uitvoeringsvorm is weergegeven : details zijn niet weergegeven, daar deze ook zeer wel bekend zijn bij soortgelijke inrichtingen.In the embodiment described above, there is essentially a mechanical construction, but it will be clear that other constructions are also possible, e.g. a pneumatic, hydraulic, electronic or other solution can also be chosen to achieve the intended goal: as an example of this, reference is made to the accompanying figure 4 in which a possible embodiment is shown very schematically: details are not shown, as they are also very well known at similar establishments.

Bij de in fig. 4 weergegeven andere uitvoeringsvorm voor het bedienen van een driewegklep wordt uitgegaan van een cilinder 50 met een tweetal fluidumaansluitingen 51 resp. 52. In de cilinder 50 bevindt zich een zuiger 53 met een doorlopende zuigerstang 54 die zowel naar de ene als naar de andere zijde toe uitsteekt. De uitstekende einden van de zuigerstang 54 bedienen op hun beurt haakse hefbomen 55 resp. 56. De hefbomen 55 resp. 56 zijn elk met het freem verbonden ter plaatse van rotatieassen 57 resp. 58 en bedienen daarbij klepstelen 59, 60, die vergelijkbaar zijn met de klepstelen 17 resp. 18 die hiervoor aan de hand van fign. 1 t/m 3 zijn beschreven.The other embodiment for operating a three-way valve shown in Fig. 4 is based on a cylinder 50 with two fluid connections 51 and 51, respectively. 52. In the cylinder 50 there is a piston 53 with a continuous piston rod 54 which protrudes to one side as well as to the other. The projecting ends of the piston rod 54, in turn, actuate right-angle levers 55, respectively. 56. The levers 55 resp. 56 are each connected to the frame at rotational axes 57, respectively. 58 and thereby operate valve stems 59, 60, which are comparable to the valve stems 17 and 60, respectively. 18 which has been described above with reference to Figs. 1 to 3 are described.

Rond de klepstelen bevinden zich dan ook op soortgelijke wijze als aan de hand van de fign.1-3 beschreven veren 61 resp. 62, die de klepstelen telkens naar de gesloten kiepstand dringen.The valve stems are therefore located in a similar manner to springs 61 and 61, respectively, described with reference to Figs. 1-3. 62, which each push the valve stems to the closed tilting position.

Daar de overige benodigde elementen volledig gelijk kunnen zijn aan die welke hiervoor aan de hand van de fign. 1-3 zijn beschreven, zullen deze hier niet verder worden weergegeven.Since the other required elements can be completely the same as those previously required on the basis of Figs. 1-3 will not be shown here.

Het zal duidelijk zijn dat binnen het raam van de uitvin-dingsgedachte een groot aantal wijzigingen mogelijk is: zo kan het aantal poorten en afsluitkleppen worden vergroot zonder dat telkens meer dan twee poorten met elkaar in verbinding staan. Indien echter gewenst zouden ook meer dan drie poorten kunnen worden aangebracht.It will be clear that within the scope of the inventive idea a large number of changes are possible: for instance, the number of gates and shut-off valves can be increased without more than two gates being connected to each other. If desired, however, more than three ports could also be provided.

Claims (12)

1. Driewegklep voorzien van een huis met een kamer waarin een drietal poorten uitmonden, in welke kamer middelen zijn opgenomen voor het telkens afsluiten van ten minste één poort, en welke middelen van buiten af bedienbaar zijn, met het kenmerk, dat genoemde middelen zodanig zijn uitgevoerd, dat in wezen drie standen mogelijk zijn nl. een gesloten midden- of ruststand, alsmede een tweede stand waarin een toe- en afvoer met elkaar in verbinding staan en een derde stand, waarin een andere toe- en afvoer met elkaar in verbinding staan, en waarbij de overgang van de ene naar de andere stand alleen via een gesloten tussenstand kan plaatsvinden.1. Three-way valve provided with a housing with a chamber into which three gates open, in which chamber means are provided for closing off at least one gate in each case, and which means are operable from the outside, characterized in that said means are such that essentially three positions are possible, namely a closed middle or rest position, as well as a second position in which an inlet and outlet are connected and a third position in which another inlet and outlet are connected , and wherein the transition from one position to the other can only take place via a closed intermediate position. 2. Driewegklep volgens conclusie 1, met het kenmerk, dat genoemde bedieningsmiddelen zijn voorzien van een excentrisch in de bedieningsmiddelen opgesteld lager.A three-way valve according to claim 1, characterized in that said operating means are provided with a bearing arranged eccentrically in the operating means. 3. Driewegklep volgens conclusie 2, met het kenmerk, dat genoemd excentrisch opgesteld lager werkzaam is verbonden met een tweetal poortafsluitkleppen.Three-way valve according to claim 2, characterized in that said eccentrically arranged bearing is operatively connected to two gate shut-off valves. 4. Driewegklep volgens conclusie 3, met het kenmerk, dat de poortafsluitkleppen zijn verbonden met klepstelen die onder invloed staan van het excentrische lager.Three-way valve according to claim 3, characterized in that the gate closing valves are connected to valve stems under the influence of the eccentric bearing. 5. Driewegklep volgens conclusie 4, met het kenmerk, dat zich tussen het excentrisch opgestelde lager en elke klepsteel een tuimelaar bevindt.Three-way valve according to claim 4, characterized in that a rocker arm is located between the eccentrically arranged bearing and each valve stem. 6. Driewegklep volgens een of meer van de voorgaande conclusies, met het kenmerk, dat het huis in wezen bestaat uit een bovenblok en een onderblok, welke van elkaar zijn gescheiden door een flensplaat of soortgelijk afsluitorgaan, en waarbij de poorten in het onderblok uitmonden.Three-way valve according to one or more of the preceding claims, characterized in that the housing essentially consists of a top block and a bottom block, which are separated from each other by a flange plate or similar closing member, and wherein the ports open into the bottom block. 7. Driewegklep volgens conclusie 6, met het kenmerk, dat het zich in het onderblok bevindende deel van elke klepsteel is omgeven door een fluïdumdichte balg.Three-way valve according to claim 6, characterized in that the lower block portion of each valve stem is surrounded by a fluid-tight bellows. 8. Driewegklep volgens een of meer van de conclusies 4-7, met het kenmerk, dat elke klepsteel is omgeven door een veer die zodanig is afgesteund dat de klep naar de gesloten stand wordt gedrongen.Three-way valve according to one or more of claims 4-7, characterized in that each valve stem is surrounded by a spring which is supported such that the valve is forced to the closed position. 9. Driewegklep volgens conclusie 8, met het kenmerk, dat de veer zich in het bovenblok bevindt.Three-way valve according to claim 8, characterized in that the spring is located in the top block. 10. Driewegklep volgens conclusie 7, 8 of 9, met het kenmerk, dat elke afsluitklep door middel van een lasverbinding is verbonden met de betreffende klepsteelzijde.Three-way valve according to claim 7, 8 or 9, characterized in that each shut-off valve is connected to the respective valve stem side by means of a welded connection. 11. Driewegklep volgens conclusie 10, met het kenmerk, dat de klepsteelonderzijde is voorzien van een koppelstuk waaraan zowel de afsluitklep als de fluïdumdichte balg door lassen zijn verbonden.Three-way valve according to claim 10, characterized in that the valve stem bottom is provided with a coupling piece to which both the shut-off valve and the fluid-tight bellows are connected by welding. 12. Driewegklep volgens een of meer van de voorgaande conclusies, gekenmerkt door een bedieningsorgaan in de vorm van een draaiknop, welke is voorzien van een uitsparing, waarin zich excentrisch een naaf uitstrekt, op welke naaf genoemd lager is aangebracht, en waarbij de bedieningsknop aan de buitenzijde is voorien van een afhangende mantel waarbinnen zich de genoemde tuimelaars bevinden.Three-way valve according to one or more of the preceding claims, characterized by a control element in the form of a rotary knob, which is provided with a recess, in which a hub extends eccentrically, on which hub said bearing is arranged, and wherein the control knob is the outside is provided with a hanging jacket containing the said tumblers.
NL9001451A 1990-06-25 1990-06-25 THREE-WAY VALVE. NL9001451A (en)

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Application Number Priority Date Filing Date Title
NL9001451A NL9001451A (en) 1990-06-25 1990-06-25 THREE-WAY VALVE.
PCT/NL1991/000108 WO1992000477A1 (en) 1990-06-25 1991-06-25 Three-way valve

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NL9001451A NL9001451A (en) 1990-06-25 1990-06-25 THREE-WAY VALVE.
NL9001451 1990-06-25

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