EP2475916A1 - Joint annulaire pour un organe de fermeture d'une soupape et ensemble d'étanchéité pour ledit joint annulaire - Google Patents

Joint annulaire pour un organe de fermeture d'une soupape et ensemble d'étanchéité pour ledit joint annulaire

Info

Publication number
EP2475916A1
EP2475916A1 EP10760630A EP10760630A EP2475916A1 EP 2475916 A1 EP2475916 A1 EP 2475916A1 EP 10760630 A EP10760630 A EP 10760630A EP 10760630 A EP10760630 A EP 10760630A EP 2475916 A1 EP2475916 A1 EP 2475916A1
Authority
EP
European Patent Office
Prior art keywords
ring seal
longitudinal axis
bridge portion
groove
leg portions
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.)
Withdrawn
Application number
EP10760630A
Other languages
German (de)
English (en)
Inventor
Karl Welchner
Frank Neuhauser
Werner Deger
Michael HUEBNER-HECKER
André GUETLEIN
Erwin Seefried
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.)
Hecker Werke GmbH
Suedmo Holding GmbH
Original Assignee
Hecker Werke GmbH
Suedmo Holding 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 Hecker Werke GmbH, Suedmo Holding GmbH filed Critical Hecker Werke GmbH
Publication of EP2475916A1 publication Critical patent/EP2475916A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
    • F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/44—Details of seats or valve members of double-seat valves
    • F16K1/443—Details of seats or valve members of double-seat valves the seats being in series
    • F16K1/446—Details of seats or valve members of double-seat valves the seats being in series with additional cleaning or venting means between the two seats
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings

Definitions

  • Ring seal for a closing member of a valve and seal assembly with such a ring seal
  • the invention relates to an annular seal for a closing member of a valve, in particular a valve of a process engineering plant, with an annular body which defines a longitudinal axis perpendicular to the plane of the annular body, and which has a sealing surface on a radially outer surface with respect to the longitudinal axis.
  • the invention also relates to a sealing arrangement on a closing member of a valve of a process plant, with a ring seal, a Annular body having a longitudinal axis defined perpendicular to the plane of the annular body, and having a sealing surface on a radially outer surface relative to the longitudinal axis, and having a closure member on the existing radial groove for receiving the annular seal, wherein the groove has a groove bottom and groove flanks ,
  • the invention further relates to a valve, in particular a valve for a process plant.
  • a process engineering plant according to the present invention is, for example, a food-processing plant, a chemical engineering plant, a pharmaceutical plant or the like.
  • a ring seal, a seal arrangement of the type mentioned, and a valve are known, for example, from DE 10 2007 038 124 AI.
  • the double-seat valve has two closing members, namely a closing member designed as a valve disk and a closing member designed as a closing sleeve.
  • the closing member may also be a valve plate or a closing sleeve.
  • valve disk and the closing sleeve are each assigned a radially acting annular seal.
  • the respective annular seal on the respective closing member seals against a closing member seat, which is formed in the known double-seat valve by an inner surface of a cylindrical housing portion of the housing of the double-seat valve.
  • the valve disk and the closing sleeve are axially movable relative to the housing to open the valve, or to ventilate one of the two closing members for the purpose of cleaning the associated closing member seat.
  • the respective annular seal on the inner surface of the housing portion, which defines the closing member seat slides along each stroke of the closing member.
  • the ring seals are claimed by shear forces acting in the direction of the longitudinal axis of the annular body of the ring seal. In addition, the ring seals are stressed by friction. Both the friction and the shear forces lead after some time to the failure of the ring seal.
  • the ring seals are formed as O-rings, and the groove for receiving the ring seal is trapezoidal in cross-section, wherein the ring seal substantially completely fills the groove and assumes a substantially trapezoidal shape in cross section in the inserted state ,
  • ring seals which are formed as O-rings
  • ring seals are also known, which have a cross-sectionally substantially trapezoidal shape before insertion into the groove.
  • Ring seals are usually made of a rigid elastomer, for example. Of various types of rubber, perfluoroelastomers, polyethylene or PTFE.
  • Fig. 1 shows a detail of a closing member 1, a closing member seat 2 and a ring seal 3, which is received in a groove 4 of the closing member 1.
  • the ring seal 3 has approximately the shape of a trapezoid in cross section as shown. With a broken line 5, the radially outer surface of the ring seal 3 is shown in the non-swollen state.
  • the ring seal 3 characterized in that the ring seal 3 comes into contact with media during operation of the valve, the ring seal 3 swells. With a solid line 6, the radially outer surface of the ring seal 3 is shown in the swollen state. Due to the volume increase in the material of the ring seal 3 due to the swelling now penetrate a portion of the material of the ring seal 3 in the gap 7 between the closing member 1 and the closing member seat 2, as illustrated with material portions 8a, 8b in Fig. 1. This effect of penetration of material of the ring seal 3 into the gap 7 is also referred to as gap extrusion.
  • the invention is therefore the object of developing a ring seal and a seal assembly of the type mentioned in that the life of the ring seal is less affected by swelling of the material of the ring seal.
  • this object is achieved with respect to the aforementioned ring seal, characterized in that the annular body has two substantially radially directed leg portions which are spaced apart in the direction of the longitudinal axis, wherein the two leg portions are interconnected by an extending in the direction of the longitudinal axis bridge portion the radially outer surface of the sealing surface is present, and that a radially inner surface of the bridge portion of ends of the leg portions, which are remote from the sealing surface, is spaced in the radial direction.
  • the object underlying the invention is achieved in that the annular body has two substantially radially directed leg sections, which are spaced apart in the direction of the longitudinal axis, wherein the two leg sections connected by a bridge section extending in the direction of the longitudinal axis are at the radially outer surface of which the sealing surface is present, and that a radially inner surface of the bridge portion of ends of the leg portions, the are remote from the sealing surface, is spaced in the radial direction, that the ends of the leg portions are supported on the groove base, and that in the direction of the longitudinal axis outer surfaces of the leg portions lie flat against the groove edges.
  • the invention is based on the concept of avoiding the swelling of the ring seal by an appropriate choice of the material of the ring seal, but to allow swelling of the ring seal and deviating from the life of the ring seal effects of swelling by a deviating from the conventional geometry of ring seals to avoid geometry of the invention.
  • the ring seal according to the invention has a space between the two leg sections and the bridge section, which allows the bridge section to spring into this space when the ring seal is swelled and material of the ring seal can escape into this space. The swelling of the ring seal thus no longer causes material of the ring seal to penetrate into the gap between the closure member and the closure member seat, but that the ring seal in the groove can expand into the space created according to the invention.
  • leg sections which are supported on the groove base provide for the radial support of the ring seal, while the bridge section between the leg sections has a certain spring elasticity, which on the one hand permits deflection of the bridge section when swelling the ring seal, and on the other hand the radial tension required for the sealing action against the closing link seat applies.
  • the voltage applied to the groove flanks leg portions of the annular body provide for the fulfillment of the further requirement that no medium penetrates into the groove between the ring seal and the groove flanks.
  • a conventional sealing material can be used for the ring seal according to the invention, for example an elastomer as currently used for corresponding applications.
  • the groove flanks of the groove extend radially or radially outward to radially inward in the direction at an angle to one another.
  • the leg portions of the ring seal can invest intimately on the groove edges, wherein the contact pressure of the leg portions in the event that the groove flanks from radially outward to radially inward toward obliquely to each other, is still increased, which is even safer avoided Medium penetrate into the groove and the seal can migrate behind.
  • the groove at its radially outer end in the direction of the longitudinal axis has a smaller dimension than the ring seal, if this is not yet inserted into the groove.
  • the axial contact pressure of the ring seal against the groove flanks in the sense of a higher density against penetration of medium into the groove is even greater.
  • the incorporation of the ring seal is simplified in the groove by the ring seal snaps when inserted into the groove in this.
  • the ring seal is always in a defined position in the groove.
  • the groove expands starting from its radially outer end (opening edge) in the direction of the longitudinal axis over a radial section, which is smaller than the radial extent of the leg sections on.
  • the groove at its opening edge on a kind of enclosure for the ring seal which meets the aforementioned advantages, namely the application of sufficient axial contact pressure of the leg portions against the groove flanks, a simple installation in the sense of snapping the ring seal in the groove and a defined installation position of the ring seal.
  • the ends of the leg portions, which are remote from the radially outer surface of the bridge portion are not connected to one another.
  • the groove base has a central radially outwardly raised web, which is spaced from the radially inner surface of the bridge portion, and which fixes the two leg portions only in the direction of the longitudinal axis of the annular body.
  • the two leg portions fixed in position in the axial direction, thereby ensuring that the leg portions always fit tightly against the groove flanks and not fold away from them.
  • the web is in this case spaced from the radially inner surface of the bridge section, so that further provided according to the invention provided alternative space when swelling the ring seal.
  • the web ensures the leg sections only axially, but not radially, so that the insertion of the ring seal in the groove is very easy.
  • the ends of the leg sections which face away from the radially outer face of the bridge section may be connected to one another by a web which has a high rigidity in the direction of the longitudinal axis.
  • the groove bottom of the groove does not have to have the above-mentioned raised web, but can be formed as a whole flat. This contributes to the simplification of the production of the groove in the closing member.
  • the provided on the ring seal itself web holds the ends of the leg portions against the groove flanks. Further preferred embodiments which are advantageous both for the ring seal and for the seal arrangement are described below.
  • the sealing surface is formed on the radially outer surface of the bridge section as a substantially line-shaped sealing lip which surrounds the longitudinal axis.
  • the radially outer surface of the bridge portion starting from the sealing lip to at least one of the leg portions has a concave trough.
  • the radially inner surface of the bridge section merges into the leg sections with a curvature that is concave when viewed from the longitudinal axis.
  • This embodiment has the advantage that due to the concave curvature of the radially inner surface of the bridge section, the bridge section has an even higher radial spring elasticity, which presses the sealing surface against the closing link seat at the bridge section with sufficient pressure.
  • a support element for supporting the bridge section is arranged on the radially inner surface of the bridge section.
  • the support element preferably has a different spring characteristic than the bridge section and / or a different material than the material of the bridge section.
  • the space between the leg portions and the radially inner surface is at least partially filled by the support member.
  • the support member is preferably selected to have a different spring characteristic and / or hardness than the bridge portion of the ring seal.
  • the support member may be made of a softer material than the material of the bridge portion so that the bridge portion can spring radially inwardly compressing this softer material upon swelling of the ring seal without the effect of split extrusion or increased friction of the seal surface on the closure member seat ,
  • the provision of such a support element in the space between the bridge portion and the leg portions has the advantage of increasing the contact pressure of the sealing surface of the closing member seat, at least in the non-swollen state of the ring seal.
  • the space between the leg portions, the bridge portion and the groove bottom is preferably completely filled by the support member, whereby a further requirement of the ring seal is fulfilled when it is used in a valve for a food processing plant.
  • FIG. 1 shows a sealing arrangement according to the prior art in a section parallel to the longitudinal axis of the seal assembly.
  • FIG. 2 shows a detail of a valve, in particular double-seat valve of a food-technical system, in section parallel to the longitudinal axis of the valve, with a sealing arrangement according to the invention and a ring seal according to the invention.
  • FIG. 3 shows a detail of the valve in FIG. 2 enlarged relative to FIG. 2;
  • FIGS. 2 and 3 shows the ring seal of the sealing arrangement in FIGS. 2 and 3 in isolation in a perspective view
  • FIG. 5 shows a ring seal according to a further embodiment in cross section parallel to the longitudinal axis of the ring seal.
  • Fig. 6 shows a still further embodiment of a ring seal in a cross section parallel to the longitudinal axis of the ring seal.
  • Fig. 2 shows a valve provided with the general reference numeral 20, which is designed, for example, as a double-seat valve, and which is in a process engineering plant, for example. A food plant, is used.
  • the double-seat valve 20 has a first closing member 22 and a second closing member 24, the closing members 22 and 24 being shown here as a valve disk.
  • the closing member 22 cooperates in the closed position shown in Fig. 2 with a closing member seat 26 which is formed as a cylinder jacket surface on a housing portion 28 of the housing 20 of the valve.
  • the closing member 22 can be transferred according to an arrow 27 upwards with entrainment of the second closing member 24 in the open position.
  • the closing member 22 could also be transferred against the direction of the arrow 27 down from the closed position in its open position, for example.
  • the closing member 22 has a sealing arrangement 30 according to the invention, which has a ring seal 32.
  • seal assembly 30 and the ring seal 32 are described below with reference to Figures 3 and 4 in more detail.
  • the ring seal 32 is formed according to its mounting position in the closing member 22 and its interaction with the closing member seat 26 as a radial seal.
  • the ring seal 32 has an annular body 34 which defines a longitudinal axis 36 perpendicular to the plane of the annular body 34.
  • the ring body 34 has, according to FIGS. 3 and 4, two substantially radially directed leg sections 38 and 40, which are spaced apart in the direction of the longitudinal axis 36.
  • the leg sections 38 and 40 are connected to one another by a bridge section 42 extending in the direction of the longitudinal axis 36. the.
  • the leg portions 38, 40 and the bridge portion 42 are preferably integrally connected to each other and are preferably made of the same sealing material, for example.
  • a rigid elastomer is preferably integrally connected to each other and are preferably made of the same sealing material, for example.
  • the bridge section 42 has a radially outer surface 44, which has a sealing surface 46.
  • the sealing surface 46 is designed as a substantially line-shaped sealing lip 48 that extends around the longitudinal axis 36.
  • a radially inner surface 50 of the bridge portion 42 is spaced from ends 52 and 54 of the leg portions 38 and 40, respectively, in the radial direction.
  • a space 56 is present, which serves as sources for the volumetric expansion of the annular seal 32 when swirling the ring seal 32, in which material of the ring seal 32 can escape when swelling.
  • the bridge portion 42 can elastically spring into the space 56, as indicated by an arrow 58 in Fig. 3.
  • the radially inner surface 50 of the bridge portion 42 goes, as is apparent in particular from FIGS. 2 and 3, with a curvature, which is seen from the longitudinal axis 36 from concave, in the leg portions 38, 40, whereby the spring action of the bridge portion 42 dimensioned becomes.
  • the seal assembly 30 further includes a groove 60 in which the ring seal 32 is received.
  • the groove 60 has a leg flank 62 assigned to the leg section 38 and a groove flank 64 assigned to the leg section 40.
  • the groove flanks 62 and 64 define the groove 60 in the axial direction. In the radial direction, the groove 60 through a groove bottom 66 limited.
  • the ends 52 and 54 of the leg portions 38, 40 are supported in the radial direction on the groove base 66, while the axially outer surfaces of the leg portions 38, 40 abut the groove flank 62 and the groove flank 64 areally.
  • the groove flanks 62 and 64 extend radially as shown, but it can also be provided that the groove flanks 62 and 64 extend obliquely from one another radially outward to radially inward direction, whereby the leg portions 38, 40 are given a bias in the axial direction can.
  • the groove 60 At its radially outer end, more precisely at the radially outer end 68 of the groove flank 62 and at the radially outer end 70 of the groove flank 64, the groove 60 has a smaller dimension in the axial direction than the ring seal 32, if this is not inserted into the groove 60 is. Starting from the ends 68 and 70, the groove 60 widens over a radial section, which is smaller than the radial extent of the leg sections 38, 40, as shown in FIG. 3, on.
  • leg portions 38 and 40 are thus slightly compressed axially, whereby a particularly good sealing abutment of the leg portions 38 and 40 on the groove flanks 62 and 64 is ensured.
  • the axial projections at the outer ends 38 and 70 of the flanks 62, 64 cause snapping of the ring seal 32 in the groove 60 during assembly and define a predetermined mounting position of the ring seal 32 in the groove 60th
  • the sealing lip 48 is arranged in the axial direction approximately midway between the leg portions 38 and 40, wherein the radially outer surface 44 of the bridge portion 42, starting from the sealing lip 48 to both leg portions 38 and 40 toward a concave recess 72 and 74, respectively.
  • This also makes additional escape space for the ring seal 32 for an increase in volume the ring seal 32 created when swelling, thereby avoiding that except the sealing lip 48 no other areas of the outer surface 44 of the bridge portion 42 come into contact with the closing member seat 26, at least not under high contact pressure. In particular, this also avoids that upon swelling of the ring seal 32, material of the ring seal 32 enters the gap between the closure member seat 26 and the closure member 22.
  • the ends 52 and 54 of the leg portions 38 and 40 are not interconnected.
  • the groove bottom 66 has in this case a central radially outwardly raised web 76.
  • the web 76 serves to position fix the two leg portions 38 and 40 in the direction of the longitudinal axis 36, i. the web 76 avoids that the ends 52 and 54 or the leg portions 38 and 40 as a whole axially fold away from the respective groove flank 62 and 64 respectively and come out of abutment with the groove flank 62 or 64 accordingly.
  • the web 76 has a shape which fixes the ends 52 and 54 of the leg portions 38 and 40 only in the axial direction, but not in the radial direction, i. the ends 52 and 54 of the leg portions 38 and 40 are in the radial direction i. not locked on the groove base 66.
  • the entire ring seal 32 may be made in one piece from a single material, for example. From a rigid elastomer, wherein due to the geometry of the ring seal 32 is not primarily the source properties of such material.
  • a volume escape space into which the ring seal 32 can expand and, moreover, such an escape space becomes on the radially outer side of the surface 44 created by the wells 72 and 74.
  • the ring seal 32 also fulfills the requirement that a medium, for example product or cleaning fluid, can not penetrate the ring seal 32 between the ring seal 32 and the groove 60. This is caused on the one hand by the axial projections 68 and 70 at the entrance of the groove 60 and by the web 76 on the groove bottom 66.
  • FIG. 5 shows a modification of the ring seal 32, in which a support element 78 for supporting the bridge section 42 is arranged on the radially inner surface 50 of the bridge section 42.
  • the support element has a different spring characteristic than the bridge section 42 and / or a material which is different from the material of the bridge section 42.
  • a material may be, for example, sponge rubber, which is easily compressible.
  • the ring seal 32 can also be inserted into the groove 60 of FIG. 3, in which case the support element 78 between the radially inner surface 50 and the web 76 is compressed and the space 56 is completely filled by the support member 78.
  • the support element 78 may be formed as shown as an O-ring and glued to the inner surface 50 or the like. Be.
  • Fig. 6 shows a further modification of a ring seal 32 ', in which, unlike the ring seal 32, the ends 52' and 54 'of the leg portions 38' and 40 'are interconnected via a web 80 having a high rigidity in the direction of the longitudinal axis 36 'has.
  • the ring seal 32 ' can be omitted in the groove 60 in Fig. 3 of the web 76, in which case the web 80, the leg portions 38' and 40 'in abutment against the groove flanks 62 and 64 holds.
  • the groove bottom 66 can thus be flat in such an embodiment of the ring seal 32 'in the axial direction.
  • the web 80 may be integrally formed with the leg portions 38 'and 40', or be connected to this cohesively, for example. By gluing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Sealing Devices (AREA)

Abstract

L'invention concerne un joint annulaire (32) conçu pour un organe de fermeture (22) d'une soupape, en particulier d'une soupape (20) d'un système utilisé en ingénierie des procédés, comprenant un corps annulaire (34) qui définit un axe longitudinal (36) perpendiculaire au plan du corps annulaire (34), et qui comprend une surface d'étanchéité (46) au niveau d'une surface (44) située radialement à l'extérieur par rapport à l'axe longitudinal (36). Le corps annulaire (34) comprend deux segments branches (38, 40) orientés sensiblement de manière radiale qui sont espacés dans la direction de l'axe longitudinal (36), ces deux segments branches (38, 40) étant reliés l'un à l'autre par une section de liaison (42) qui s'étend dans la direction de l'axe longitudinal (36), la surface d'étanchéité (46) étant présente sur la surface extérieure radiale de cette section de liaison. Une surface intérieure radiale (50) de la section de liaison (42) est située à une certaine distance, dans la direction radiale, des extrémités (52, 54) des segments branches (38, 40) opposés à la surface d'étanchéité (46). L'invention concerne en outre un ensemble d'étanchéité qui comprend ledit joint annulaire et une soupape munie dudit ensemble d'étanchéité.
EP10760630A 2009-09-10 2010-09-08 Joint annulaire pour un organe de fermeture d'une soupape et ensemble d'étanchéité pour ledit joint annulaire Withdrawn EP2475916A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009042142A DE102009042142A1 (de) 2009-09-10 2009-09-10 Ringdichtung für ein Schließglied eines Ventils sowie Dichtungsanordnung mit einer solchen Ringdichtung
PCT/EP2010/063163 WO2011029838A1 (fr) 2009-09-10 2010-09-08 Joint annulaire pour un organe de fermeture d'une soupape et ensemble d'étanchéité pour ledit joint annulaire

Publications (1)

Publication Number Publication Date
EP2475916A1 true EP2475916A1 (fr) 2012-07-18

Family

ID=43416353

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10760630A Withdrawn EP2475916A1 (fr) 2009-09-10 2010-09-08 Joint annulaire pour un organe de fermeture d'une soupape et ensemble d'étanchéité pour ledit joint annulaire

Country Status (4)

Country Link
US (1) US20120313027A1 (fr)
EP (1) EP2475916A1 (fr)
DE (1) DE102009042142A1 (fr)
WO (1) WO2011029838A1 (fr)

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DE102011116735B4 (de) * 2011-10-19 2013-07-04 Südmo Holding GmbH Ventil für eine produktführende prozesstechnische Anlage
JP6249557B2 (ja) * 2012-12-19 2017-12-20 株式会社堀場エステック シール部材、及び、シール部材の製造方法
CN106461082B (zh) * 2014-05-08 2019-11-22 Nok株式会社 密封圈和密封结构
DE102014113488A1 (de) * 2014-09-18 2016-03-24 Khs Gmbh Füllventil
US9976657B2 (en) * 2016-04-01 2018-05-22 Cameron International Corporation Double slip seal profile for plug valves
WO2020018226A1 (fr) * 2018-07-19 2020-01-23 Applied Materials, Inc. Joint torique multiusage à nœuds multiples et procédé de fabrication d'un joint
DE102019214641A1 (de) 2019-09-25 2021-03-25 Evoguard Gmbh Dichtungseinstich für eine radiale Dichtung
CN112788164B (zh) * 2020-12-31 2023-03-21 Oppo广东移动通信有限公司 功能模组及电子设备
CN113505462A (zh) * 2021-04-30 2021-10-15 Oppo广东移动通信有限公司 密封件分析优化方法及装置及相关产品
GB2609415A (en) * 2021-07-29 2023-02-08 Airbus Operations Ltd Seal

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WO2011029838A1 (fr) 2011-03-17
DE102009042142A1 (de) 2011-03-24

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