DK168237B1 - Swivel valve of the middle flange type - Google Patents
Swivel valve of the middle flange type Download PDFInfo
- Publication number
- DK168237B1 DK168237B1 DK111791A DK111791A DK168237B1 DK 168237 B1 DK168237 B1 DK 168237B1 DK 111791 A DK111791 A DK 111791A DK 111791 A DK111791 A DK 111791A DK 168237 B1 DK168237 B1 DK 168237B1
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- DK
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- Prior art keywords
- sealing ring
- valve
- housing
- damper plate
- rings
- Prior art date
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Classifications
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
- F16K1/2265—Shaping or arrangements of the sealing the sealing being arranged on the valve seat with a channel- or U-shaped seal covering a central body portion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Lift Valve (AREA)
Description
DK 168237 B1DK 168237 B1
Den foreliggende opfindelse angår en drejespjæld-ventil af den art, der er angivet i indledningen til krav 1.The present invention relates to a rotary damper valve of the kind set forth in the preamble of claim 1.
Drejespjældventiler er en forholdsvis enkel ventil-5 type bestående af et ventilhus med et lige gennemløb og med en rundtgående indre tætningsring for samvirke med en drej esp jaeldplade, der ved hjælp af en gennem et hul i tætningsringen og i husvæggen udstående drejespindel kan drejes 90° mellem en tværstillet lukkestilling, hvori 10 randen af den cirkulære spjældplade er i anlæg mod tætningsringen, og en længdestillet åbnestilling, hvori den flade spjældplade kun danner en ubetydelig indsnævring af gennemløbstværsnittet.Rotary damper valves are a relatively simple valve type consisting of a valve housing with a straight passage and with a circumferential inner sealing ring for co-operation with a rotating esp plate, which can be rotated 90 ° through a hole in the sealing ring and in the housing wall. between a transverse closing position in which the edge of the circular damper plate abuts against the sealing ring, and a longitudinal open position in which the flat damper plate forms only a negligible narrowing of the passage cross-section.
Ventiler af denne art finder udbredt anvendelse i 15 rørsystemer i forskellige procesanlæg. De kan udføres som relativt billige enheder, der for yderligere billiggørelse kan være indrettet til at indmonteres ved svejsning, således at dyre forskruningsforbindelser kan undværes. For de helt konventionelle spjældventiler er det 20 dog herved en ulempe, at ventilerne er vanskelige at udtage for servicering.Valves of this kind are widely used in 15 pipe systems in various processing plants. They can be made as relatively inexpensive units which, for further cheapening, may be arranged to be fitted by welding, so that expensive screw connections can be avoided. However, for the completely conventional damper valves, there is a disadvantage that the valves are difficult to remove for servicing.
Netop på den baggrund er der udviklet særlige, såkaldte mellemflangeventiler, hvor ventilens ædlere dele i form af spjældpladen, tætningsringen og en omgi-25 vende husdel er indspændt som en selvstændig enhed imellem modstående ventilendestykker, der ligger tætnende an mod den pågældende omgivende husdel og udadtil er udformet med respektive forbindelsesstutse, som er egnede til at svejseforbindes med de tilstødende ledningsrør. De 30 nævnte ventilendestykker kan ved hjælp af bolte sammenspændes imod den mellemliggende enhed, som så tilsvarende ved løsning af boltene kan frigøres og udtrækkes i et radialplan for servicering, uden at endestykkerne behøver at adskilles fra de tilsluttede rør, ider den servi-35 cerede enhed på tilsvarende måde kan indmonteres ved en DK 168237 B1 2 rent tværgående indsætningsbevægelse.Precisely on this basis, special so-called intermediate flange valves have been developed, in which the noble parts of the valve in the form of the damper plate, the sealing ring and an enclosing housing part are clamped as a separate unit between opposing valve end pieces, which are sealingly against the surrounding housing part and externally. are formed with respective connecting plugs which are suitable for welding to the adjacent conduits. The 30 valve end pieces can be clamped against the intermediate unit by means of bolts, which can then be released and extracted in a radial plane for servicing, without the need for the end pieces to be separated from the connected pipes, during the serviced unit. similarly can be mounted with a DK 168237 B1 2 purely transverse insertion movement.
Det har herved været naturligt at opfatte den mel-* lem endestykkerne beliggende mellemflange, også kaldet ventilhuset som en overordnet husdel, der indadtil bærer 5 tætningsringen og spjældpladen, medens den i aksialret-ningen danner et afstandsstykke mellem de ydre endedele af ventilen, således at disse ved deres sammenspænding blot skal tætne godt mod denne mellemflange. Dette er på sin vis let opnåeligt ved brug af egnede, aksialt virk-10 ende tætningsmidler imellem endedelene og mellemenheden, men det er dog en komplikation, at disse tætninger overhovedet skal etableres.Hereby, it has been natural to perceive the intermediate flange located between the end pieces, also called the valve housing as an overall housing part, which inwardly carries the sealing ring and the damper plate, while in the axial direction it forms a spacer between the outer end portions of the valve. these by their tightening only have to close well against this middle flange. This is easily achievable by the use of suitable axially acting sealants between the end portions and the intermediate unit, but it is a complication that these seals must be established at all.
Det er for de betragtede ventiler en ganske vigtig betingelse, at tætningsringen omkring spjældpladen kan 15 forblive sikkert lejret uanset et optrædende over- eller undertryk i ventilens indre, Det omgivende faste mellem-flangehus vil i sig selv sikre, at tætningsringen kan modstå et indre overtryk, og mellemflangedelene kan udmærket optage og fastholde ydersiden af tætningsringen 20 på en sådan måde, at denne også vil være fastholdt mod et optrædende undertryk i ledningen, normalt ved fastholdelse af en fortykket ydre del på tætningsringen i et underskåret rundtgående spor i indersiden af ventilhuset.For the considered valves, it is a very important condition that the sealing ring around the damper plate can remain securely mounted regardless of any occurring overpressure or underpressure in the interior of the valve. The surrounding fixed intermediate flange housing will itself ensure that the sealing ring can withstand an internal overpressure and the middle flange portions can very well receive and retain the exterior of the sealing ring 20 in such a way that it will also be retained against an emerging negative pressure in the conduit, usually by retaining a thickened outer portion of the sealing ring in a cut circumferential groove in the interior of the valve body.
25 Ydermere bør det tilstræbes, at ventilerne er lette at renholde indvendigt, primært ved ClP-rengøring, og på dette punkt er de sædvanlige mellemflangeventiler ikke fordelagtige, bl.a. fordi der ved de nævnte aksial-tætninger ud mod de ydre husdele forekommer spalter, 30 hvori der kan sætte sig aflejringer under sædvanlig drift.Furthermore, it should be sought that the valves are easy to clean internally, primarily through ClP cleaning, and at this point the usual intermediate flange valves are not advantageous, i. because at said axial seals against the outer housing portions there are slits 30 in which deposits may settle during normal operation.
Der er dog allerede foreslået mellemflangeventiler af den indledningsvis nævnte art, hvor de pågældende uheldigheder i nogen grad er imødegået. Eksempelvis 35 kendes fra US-A-3,341,170 en ventil, hvor den rørformede tætningsring strækker sig hele vejen gennem ventilhuset, DK 168237 B1 3 således at den med sine egne ender kan tætne mod yderhusdelene, hvorved de ekstra tætningsringe og tilhørende spalter ved disse dele kan undgås. Indersiden af ventilhuset er udført som en glat flade, uden særlige holde-5 midler for tætningsringen, men til gengæld er denne udført på en kompliceret måde, nemlig bestående af en ydre rørdel af et fast plastmateriale, til hvis inderside en indvendig, elastisk tætningsring - eller rørdel er overfladebundet, formentlig ved vulkanisering. Udover 10 at denne binding i sig selv rummer en komplikation er det i en kvalificeret sammenhæng ganske uheldigt, at tætningsringen således fremtræder som en i hovedsagen stiv enhed; dette betyder nemlig, at spjældpladen nødvendigvis må være i adskillelig forbindelse med dreje-15 spindelen, da det ellers ikke vil være muligt at montere tætningsringen omkring spjældpladen. Hvis eller når spjældpladen er udført i eet med drejespindelen skal denne montering nødvendigvis ske ved at tætningsringen deformeres så vidtgående, at den kan krænges ind over 20 den frie ende af den udragende drejespindel, og dette kan ikke ske, hvis ringen optræder som et fast element.However, intermediate flange valves of the type mentioned at the outset have already been proposed, where the inconveniences in question have been mitigated to some extent. For example, from US-A-3,341,170 a valve is known in which the tubular sealing ring extends all the way through the valve housing, so that it can close with its own ends to the outer housing parts, whereby the additional sealing rings and associated slots at these parts can avoided. The inside of the valve body is constructed as a smooth surface, with no special holding means for the sealing ring, but on the other hand it is made in a complicated manner, namely an outer tube part of a solid plastic material, to the inside of which has an inner, elastic sealing ring - or pipe portion is surface bound, probably by vulcanization. In addition to the fact that this bond itself is a complication, it is quite unfortunate in a qualified context that the sealing ring thus appears as a generally rigid unit; this means that the damper plate must necessarily be in separate communication with the pivot spindle, as otherwise it will not be possible to mount the sealing ring around the damper plate. If or when the damper plate is made in one with the swivel spindle, this mounting must necessarily be done by deforming the sealing ring so that it can penetrate over the free end of the protruding spindle and this cannot happen if the ring acts as a fixed element. .
Umiddelbart er det ikke specielt problematisk at lade drejespindelen være forbundet med spjældpladen, således at spindelen kan tilsluttes efter at tætnings-25 ringen er anbragt omkring denne plade, men når der stilles store hygiejniske krav til ventilen er der herved alligevel tale om en ulempe, idet skillefladeområdet mellem spindelen og spjældpladen vil repræsentere et potentielt opsamlingsområde for urenheder. Det bør såle-30 des tilstræbes, at tætningsringen er tilstrækkeligt eftergivende til, at den kan deformeres så vidtgående, at den kan indkrænges over den ydre ende af ventilspindelen, hvorved denne på fordelagtig måde kan være i fast forbindelse med spjældpladen. Blot vil en sådan tilhø-35 rende fleksibilitet af tætningsringen være uheldig for så vidt angår fastholdelsen af ringen til en glat inder- DK 168237 B1 4 side på det omgivende ventilhus.Immediately, it is not particularly problematic to leave the pivot spindle connected to the damper plate so that the spindle can be connected after the sealing ring is placed around this plate, but when there are high hygienic requirements for the valve there is nevertheless a disadvantage, since the interface area between the spindle and the damper plate will represent a potential collection area for impurities. It should thus be sought that the sealing ring is sufficiently resilient that it can be deformed so far that it can be penetrated over the outer end of the valve spindle, whereby it can advantageously be fixedly connected to the damper plate. Only such associated flexibility of the sealing ring would be detrimental as far as the retention of the ring to a smooth inner side of the surrounding valve body is concerned.
Et andet relevant forslag er angivet i US-A-4,605,201, hvor tætningsringen er profileret til at gribe ud omkring et modsvarende profileret holdespor ved 5 endekanterne af ventilhuset. Dels kræver dette, at de samvirkende dele udføres med særlige profileringer hvorved tætningsringen ikke er specielt let at montere, og dels gælder det øjensynligt også ved dette forslag, at det er påkrævet at lade spjældpladen optræde i delelig 10 forbindelse med drejespindelen.Another relevant proposal is disclosed in US-A-4,605,201, where the sealing ring is profiled to extend around a correspondingly profiled holding groove at the 5 end edges of the valve body. Partly this requires that the cooperating parts be made with special profiling whereby the sealing ring is not particularly easy to mount, and partly also it is evident in this proposal that the damper plate is required to be in part in connection with the spindle.
Det tilstræbes ved opfindelsen at angive en ventil af den nævnte art, som er en enkel konstruktion, og ved hvilken tætningsringen kan være udført på simpel og let monterbar måde, endda med mulighed for indkrængning over 15 drejespindelen, således at ventilen også i den henseende er velegnet til at udføres for tilfredsstillelse af høje hygiejniske krav.It is an object of the invention to provide a valve of the aforementioned kind which is a simple construction and in which the sealing ring can be designed in a simple and easily mountable manner, even with the possibility of penetration over the pivot spindle, so that the valve is also in this regard. suitable to be performed for satisfying high hygiene requirements.
Dette opnås ifølge opfindelsen ved, at ventilen er indrettet som angivet i den kendetegnende del af krav 1.This is achieved according to the invention in that the valve is arranged as defined in the characterizing part of claim 1.
20 Ventilhuset kan bestå af et simpelt rørstykke, omend på kendt måde opslidset til samling omkring spjældpladen og dennes drejespindel, og huset behøver ingen form for specialprofilering for den nødvendige fastholdelse af tætningsringen. De nævnte afstivningsringe kan sættes på 25 plads efter at tætningsringen er monteret i sin slut-stilling mellem spjældpladen og ventilhuset, og selvom tætningsringen i sig selv er passende blød, så vil den dog derved blive afstivet tilstrækkeligt dels til at kunne modstå en vis friktion ved indskydningsmonteringen 30 mellem yder - eller endehusdelene og dels til at være operativt stabiliseret på ønsket måde.The valve housing may consist of a simple piece of pipe, albeit in a known manner slotted for assembly around the damper plate and its swivel spindle, and the housing needs no special profiling for the necessary retention of the sealing ring. Said stiffening rings can be put in place after the sealing ring is mounted in its final position between the damper plate and the valve body, and although the sealing ring itself is suitably soft, it will however be sufficiently stiffened in part to withstand some friction at the insertion assembly 30 between the outer or end housing portions and partly to be operatively stabilized in the desired manner.
Afstivningsringene kan være indlejret i rundtgående spor i selve endefladerne af den rørformede tætningsring, hvorved de vil være helt fjernet fra det mediefør-35 ende område, hvor indersiden af tætningsringen fortsat vil rage helt ud til yderhusdelene.The stiffening rings may be embedded in circumferential grooves in the very end faces of the tubular sealing ring, whereby they will be completely removed from the media-leading region where the inside of the sealing ring will continue to project all the way to the outer housing portions.
DK 168237 B1 5DK 168237 B1 5
Det er dog i praksis fundet ligeså hensigtsmæssigt eller endda endnu bedre, at afstivningsringene i form af stive formstofringe er udført med samme inderdiameter som tætningsringen og er indskudt i rundtgående hjørne-5 spor i enderne af tætningsringen eller -røret ved indersiden deraf; det har vist sig, at en formstofring anbragt på dette sted ved aksial indskydning er udmærket egnet til at danne en effektiv og fugefri tætning dels mod tætningsringen og dels mod yderhusdelen, når optage-10 sporet i tætningsringen er passende diamensioneret.However, in practice it has been found equally convenient or even better that the stiffening rings in the form of rigid plastic rings are made with the same inner diameter as the sealing ring and are inserted into circular corner grooves at the ends of the sealing ring or tube at the inside thereof; it has been found that a plastic ring disposed at this location by axial insertion is very suitable for forming an effective and joint-free seal partly against the sealing ring and partly against the outer housing part when the uptake groove in the sealing ring is appropriately dimensioned.
Som allerede antydet er det en væsentlig fordel, at tætningsringen trods sin afsluttende stivhed dog er let deformerbar ved dens montering på spjældpladen, da denne og dens tilhørende drejespindel så kan være udført i eet 15 stykke, fortrinsvis med afrundede indbyrdes overgange, således at ventilen også herved er let at renholde ved ClP-rengøring.As already indicated, it is a significant advantage that, despite its final rigidity, the sealing ring is easily deformable by its mounting on the damper plate, since this and its associated spindle can then be made in one piece, preferably with rounded intersections, so that the valve also this is easy to clean by ClP cleaning.
Det skal bemærkes, at det fra visse drejespjældven-tiler, som ikke er af mellemflangetypen, er kendt at 20 lejre tætningsrøret på en sådan måde, at det har endedele, der er indragende i modstående, rundtgående recesser i selve ventilhuset. I DE-C-670,327 er angivet en variant, hvor den indadvendende recesvæg er erstattet med en udspilende holdering svarende til en stempelring, 25 som kan indmonteres efter at ventildelene i øvrigt er samlede. Der benyttes dog fortsat også et direkte holdeindgreb mellem et underskåret holdespor i indersiden af ventilhuset og en rundtgående vulst på ydersiden af tætningsrøret, og i øvrigt vil brugen af den nævnte 30 holdering være yderst uheldig derved, at den ved sine overlappende endedele vil danne et åbent, kantet rum, som vil være umuligt at renholde. Det vil ses, at det i forhold hertil vil være en betydelig fordel, når man ved opfindelsen kan udføre en aksial indskydning af en stiv 35 og helt lukket holdering.It should be noted that, from certain non-intermediate flange type pivot valves, it is known to enclose the sealing tube in such a way that it has end portions projecting into opposing, recesses in the valve body itself. DE-C-670,327 discloses a variant in which the inward-facing recess wall is replaced with a protruding retaining ring corresponding to a piston ring, which can be mounted after the valve parts are otherwise assembled. However, a direct holding engagement between an undercut holding groove in the inside of the valve housing and a circumferential bead on the outside of the sealing tube is also used, and moreover, the use of said retaining ring will be extremely unfortunate in that at its overlapping end portions it will form an open , angular space that will be impossible to clean. It will be seen that in this respect it will be a considerable advantage when an invention can be carried out axially by a rigid 35 and fully closed holding.
Opfindelsen forklares i det følgende nærmere under DK 168237 B1 6 henvisning til tegningen, på hvilken fig. 1 er et sidebillede, delvis i snit af en mel-lemflangeventil af kendt udførelse, fig. 2 et tilsvarende sidesnitbillede af en ventil 5 ifølge opfindelsen, og fig. 3 et tilsvarende snitbillede af en modificeret ventil ifølge opfindelsen.The invention will be explained in more detail below with reference to the drawing, in which FIG. 1 is a side view, partially in section, of an intermediate flange valve of known embodiment; FIG. 2 shows a similar side sectional view of a valve 5 according to the invention; and FIG. 3 is a sectional view of a modified valve according to the invention.
Den i fig. 1 viste, almindeligt kendte ventil omfatter modstående, ydre husdele 2, som ved hjælp af 10 bolte 4 er sammenspændt omkring eller imod et mellemliggende flangehus 6, som i et diametralplan er opslidset i to halvdele 8, der inderst er profileret til fastholdelse af en udstående profildel 10 på en indvendig tætningsring 12, idet der i de ydre endeflader af flange-15 halvdelene 8 er udformet rundtgående spor 14 til optagelse af respektive tætningsringe 16, som ved sammenspændingen af de ydre husdele 2 danner tætning mod disses plane indersider. Den drejelige spjældplade er vist ved 18, og det er antydet, at dennes drejespindel 20 er 20 ført ud gennem et hul i tætningsringen 12 og videre ud gennem et tilsvarende hul i flangehuset 6, hvilket hul er dannet af halvcirkulære recesser i de^ to hushalvdele 8. Ved løsnelse af boltene 4 og fjernelse af nogle af dem kan hele mellemenheden imellem de ydre husdele 2 25 udtrækkes radialt for servicering.The FIG. 1, commonly known valve comprises opposite outer housing parts 2 which are fastened around or against an intermediate flange housing 6 by means of 10 bolts 4 which are slotted in a diametral plane into two halves 8, which are profiled to maintain a protruding protrusion. profile part 10 on an inner sealing ring 12, in which outer grooves 8 are formed in the outer end faces of the flange halves 8 for receiving respective sealing rings 16 which, when clamped by the outer housing parts 2, form a seal against their flat inner sides. The rotatable damper plate is shown at 18, and it is indicated that its pivot spindle 20 is extended through a hole in the sealing ring 12 and further out through a corresponding hole in the flange housing 6, which is formed by semicircular recesses in the two housing halves. 8. By loosening the bolts 4 and removing some of them, the entire intermediate unit between the outer housing parts 2 25 can be pulled out radially for servicing.
En ganske tilsvarende ventil ifølge opfindelsen er vist i fig. 2. Her er mellemhusdelen 6 reduceret til en simpel rørflange, henholdsvis to sammenstødende rørflanger 8, inde under hvilke tætningsringen 12 er anbragt 30 som et selvbåret ring- eller rørlegeme, der helt udfylder rummet inde under husdelen 6 og indvendigt har en passage, som flugter direkte med rørpassagen i de ydre husdele 2.A very similar valve according to the invention is shown in FIG. 2. Here, the intermediate housing part 6 is reduced to a simple pipe flange or two adjacent pipe flanges 8, below which the sealing ring 12 is arranged 30 as a self-supporting ring or pipe body, which completely fills the space under the housing part 6 and has a passage which is flush inside. directly with the pipe passage in the outer housing parts 2.
I de udvendige fladsider af tætningsringen 12, fig.In the outer face of the sealing ring 12, FIG.
35 2, er udformet rundtgående spor 22, hvori der er indlagt en metallisk støttering 24. Disse ringe vil stabilisere DK 168237 B1 7 tætningsringen mod at kontrahere i tilfælde af et forekommende undertryk i rørsystemet og også mod at ekspandere ved et forekommende overtryk, men i sidstnævnte tilfælde vil også det udvendige flangehus 6 virke sta-5 biliserende.35 2, circular grooves 22 are formed in which a metallic support ring 24 is inserted. These rings will stabilize the sealing ring against contracting in the event of a negative pressure in the pipe system and also against expanding by an existing overpressure, but in In the latter case, the outer flange housing 6 will also act as a stabilizer.
I fri tilstand er tætningsringen 12 en smule bredere end flangehuset 6, således at den ved sammenspændingen af de ydre husdele 2 vil danne en tryktætning imod disse, og det vil ses, at denne tætning også vil etable-10 res også helt inde ved det med 26 betegnede område ved de respektive overgange til rørpassagerne i de ydre husdele 2, således at der ved disse steder ikke opstår nogen spaltedannelse.In the free state, the sealing ring 12 is slightly wider than the flange housing 6, so that when the outer housing parts 2 are compressed, it will form a pressure seal against them, and it will be seen that this seal will also be fully established by 26 at the respective transitions to the pipe passages in the outer housing parts 2, so that at these places no gap formation occurs.
Ved monteringen af tætningsringen 12 omkring 15 spjældpladen 18 er det afgørende, at man kan deformere tætningsringen for at få den indført over den udragende drejespindel, men dette er også ved opfindelsen uden videre muligt, når blot støtteringene 24 først indlægges efter at denne montering har fundet sted.When mounting the sealing ring 12 around the damper plate 18, it is essential that one can deform the sealing ring to have it inserted over the protruding spindle, but this is also possible in the invention only if the supporting rings 24 are only inserted after this mounting has found place.
20 I fig. 3, som viser et snit gennem spindelens diametralplan, er indført den modifikation, at de metalliske støtteringe 24 jfr. fig. 1 er erstattet af indlagte formstofringe 28 i recesser 22, som er åbne ind mod rørpassagen. Disse ringe 28 har i sig selv en vis tæt-25 ningsvirkning mod de plane indersider af de ydre husdele 2, således at de kan danne en praktisk taget spaltefri tætning imod disse, ligesom de vil være ekstra lette at montere i tætningsringen.In FIG. 3, which shows a section through the diametral plane of the spindle, the modification is introduced that the metallic support rings 24 cf. FIG. 1 is replaced by inset plastic rings 28 in recesses 22 which open to the pipe passage. These rings 28, in themselves, have some sealing effect against the planar insides of the outer housing parts 2, so that they can form a virtually gap-free seal against them, as well as being extra easy to mount in the sealing ring.
Ventilhuset 8 kan udgøres af et simpelt, glat rør-30 stykke, der blot bør være tvedelt på egnet måde for samling omkring spjældpladen og dennes drejespindel og modstående drejetap. Huset kan være delt på langs eller på tværs, og de to dele kan have passende halvcirkulære udsparinger til samling omkring drejespindelen og 35 -tappen. Huset kan fastholdes i nøjagtigt centreret stilling alene ved styrevirkningen af boltene 4.The valve housing 8 may be a simple, smooth pipe piece which should simply be split in a suitable manner for assembly around the damper plate and its pivot spindle and opposite pivot pin. The housing may be split longitudinally or transversely, and the two parts may have suitable semicircular recesses for assembly around the pivot spindle and the 35-pin. The housing can be held in precisely centered position only by the steering action of the bolts 4.
Claims (4)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK111791A DK168237B1 (en) | 1991-06-12 | 1991-06-12 | Swivel valve of the middle flange type |
| PCT/DK1992/000185 WO1992022761A1 (en) | 1991-06-12 | 1992-06-12 | Butterfly valve of the intermediate flange type |
| AU19850/92A AU1985092A (en) | 1991-06-12 | 1992-06-12 | Butterfly valve of the intermediate flange type |
| EP92912161A EP0678176A1 (en) | 1991-06-12 | 1992-06-12 | Butterfly valve of the intermediate flange type |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK111791A DK168237B1 (en) | 1991-06-12 | 1991-06-12 | Swivel valve of the middle flange type |
| DK111791 | 1991-06-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK111791D0 DK111791D0 (en) | 1991-06-12 |
| DK111791A DK111791A (en) | 1992-12-13 |
| DK168237B1 true DK168237B1 (en) | 1994-02-28 |
Family
ID=8101207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK111791A DK168237B1 (en) | 1991-06-12 | 1991-06-12 | Swivel valve of the middle flange type |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0678176A1 (en) |
| AU (1) | AU1985092A (en) |
| DK (1) | DK168237B1 (en) |
| WO (1) | WO1992022761A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016211116A1 (en) * | 2016-06-22 | 2017-12-28 | Krones Ag | Flange kit and fitting and filling system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3341170A (en) * | 1964-03-25 | 1967-09-12 | Fmc Corp | Valve |
| ES466092A1 (en) * | 1977-04-01 | 1979-01-01 | Asahi Organic Chem Ind | Butterfly valve assembly |
| CH631529A5 (en) * | 1977-12-22 | 1982-08-13 | Josef Nemetz | Flap-type shut-off valve |
-
1991
- 1991-06-12 DK DK111791A patent/DK168237B1/en not_active IP Right Cessation
-
1992
- 1992-06-12 EP EP92912161A patent/EP0678176A1/en not_active Withdrawn
- 1992-06-12 AU AU19850/92A patent/AU1985092A/en not_active Abandoned
- 1992-06-12 WO PCT/DK1992/000185 patent/WO1992022761A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0678176A1 (en) | 1995-10-25 |
| AU1985092A (en) | 1993-01-12 |
| DK111791A (en) | 1992-12-13 |
| DK111791D0 (en) | 1991-06-12 |
| WO1992022761A1 (en) | 1992-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |