EP3375945B1 - Dispositif de fermeture pour un clapet anti-retour - Google Patents

Dispositif de fermeture pour un clapet anti-retour Download PDF

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Publication number
EP3375945B1
EP3375945B1 EP18170727.4A EP18170727A EP3375945B1 EP 3375945 B1 EP3375945 B1 EP 3375945B1 EP 18170727 A EP18170727 A EP 18170727A EP 3375945 B1 EP3375945 B1 EP 3375945B1
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EP
European Patent Office
Prior art keywords
connecting element
sleeve
closure device
closing
head region
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.)
Active
Application number
EP18170727.4A
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German (de)
English (en)
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EP3375945A1 (fr
Inventor
Detlev Demmig
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.)
Strate Technologie fuer Abwasser GmbH
Original Assignee
Strate Technologie fuer Abwasser 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.)
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Publication date
Application filed by Strate Technologie fuer Abwasser GmbH filed Critical Strate Technologie fuer Abwasser GmbH
Priority to PL18170727T priority Critical patent/PL3375945T3/pl
Publication of EP3375945A1 publication Critical patent/EP3375945A1/fr
Application granted granted Critical
Publication of EP3375945B1 publication Critical patent/EP3375945B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/02—Shut-off devices
    • E03F7/04—Valves for preventing return flow

Definitions

  • the invention relates to a closure device for a backflow preventer of a pipeline according to the preamble of claim 1.
  • Backflow preventers are components that are used in particular in piping systems, but are also used wherever the flow of a medium should be directed.
  • Closure devices of this type generally have a rotatably mounted closing element which is rigidly attached to an axis, the axis of rotation of the axis of rotation being oriented perpendicular to the direction of flow of the closure device.
  • slopes are usually overcome by using a feed pump.
  • today's piping systems are usually provided with non-return valves that prevent the residual water from flowing back towards the feed pump.
  • the closing element can be closed actively or passively. While in passive closure devices the closing element is put into a closed position after the feed pump has been switched off or in the event of a malfunction due to the residual water flowing back and / or gravity, in which the closure device prevents the residual water from flowing back, actively working closure devices have a reset device which supports the closing process of the closing element and actively accelerates it.
  • the locking element shown in this document is mechanically rigidly connected to the axis of rotation by means of two locking plates. Due to the rigid connection of the closing element to the axis of rotation, it is the one in the DE 199 10 254 A1 described closure device not possible to compensate for manufacturing tolerances and angular errors of the contact surface of the housing of the backflow preventer.
  • the closing element is connected to the striking plate by means of a connecting element.
  • the connecting element described in the publication is made of metal and has a cross section in the form of a mushroom head.
  • This connecting element is positioned in a correspondingly shaped recess in the striking plate, which creates a movable connection between the connecting element and the striking plate. Because of this connection, the closing element can perform rotational movements and to a small extent tilting movements. This makes it possible for the closing element described, manufacturing tolerances and compensate for angular errors of the contact surface of the housing of the check valve.
  • connecting elements which are designed as a mushroom head or more generally as a joint connection, in particular as a socket joint connection
  • two components move relative to one another. This relative movement leads to frictional forces which act both on the joint body or mushroom head and on the joint socket. The frictional forces lead to component wear.
  • the frictional forces and the associated wear can be increased by suspended matter in the medium, in particular sand and other fine-grained materials. These suspended matter can penetrate into the gap between the joint body or mushroom head and joint socket and provide additional frictional forces.
  • Another disadvantage of the closing devices for backflow preventers of pipelines described in the prior art is that the closing element usually hits the contact surface of the backflow preventer in an uncontrolled manner when the feed pump is switched off or in the event of a fault.
  • This impact of the closing element on the contact surface of the backflow preventer generates strong vibrations within the closure device, the backflow preventer and the pipeline, which in turn can lead to a not inconsiderable noise development in the environment.
  • these vibrations increase the mechanical load on the individual components within the pipeline and the devices connected to it, which can damage the pipeline and / or reduce the fatigue strength of the connected devices. This results in shorter maintenance intervals and the earlier replacement of individual components.
  • FR 2 439 347 A1 discloses a further embodiment of a closure device for a backflow preventer of a pipeline, in particular a ventilation duct.
  • the closure device has a closure flap body on which an annular seal, which projects beyond the closure flap body, is fixed on one side by means of a fastening disk, the fastening disk is screwed to the shutter body by several screws.
  • the closing flap body lies centrally against a bearing bolt of a striking plate, the striking plate around this bearing bolt being connected to the closing flap body with several compensating springs, so that the closing flap body together with the seal and fastening disk can perform tilting movements.
  • the seal and fastening disk can be regarded as a closing element.
  • the shutter body forms a connection element to the striking plate. The tilting movements make it possible for the closing element described to compensate for manufacturing tolerances and angular errors in the contact surface of the housing of the check valve.
  • EP 0 531 824 A1 and DE 31 28 340 A1 each disclose an elastic fastening arrangement of a component on a component.
  • the fastening arrangement has an elastic sleeve with an inner rigid tubular part.
  • the tube part and thus the elastic sleeve can be fixed on the component via a fastening bolt extending through the tube part and a nut.
  • the elastic sleeve part has an outer circumferential annular groove in which a part of the component is received.
  • US 2002/0104567 A1 discloses another embodiment of a closure device for a backflow preventer of a pipeline.
  • This version includes a support plate as a closing element, a rotatably mounted mounting plate as a striking plate and a connecting element which connects the closing element to the striking plate.
  • the connecting element comprises an elastic layer which is arranged as a foot region on the underside of the closing element, a neck section which extends between the closing element and the striking plate and keeps them parallel and at a distance from one another, and a stop section which is arranged as a head region on the top of the striking plate .
  • the elastic layer, the neck portion and the stop portion are integrally molded from an elastic elastomeric material to form an integral body integrally connecting the striker and the striker.
  • the elasticity of the elastomeric material is chosen so that flexibility is obtained between the locking element and the striking plate.
  • the neck section thus defines a joint that enables the locking element to pivot in all directions relative to the locking plate in order to compensate for discrepancies in the alignment between the contact surface and the locking plate.
  • the elasticity of the connecting element is improved by an opening made in the connecting element on one side, which, starting from the foot region, runs along a central axis through the foot region and the head region.
  • the present invention is based on the object of providing a low-wear alternative for the elastic connection of the closing element and striking plate of a closure device for a non-return valve of a pipeline.
  • the invention is based on a closure device for a backflow preventer of a pipeline, which comprises a closing element, a rotatably mounted striking plate and a connecting element which mechanically connects the closing element to the striking plate, the connecting element, which has a head region and a foot region, comprising a is made of elastic material and has an opening along a central axis through the head region and the foot region of the connecting element.
  • a sleeve in particular a threaded sleeve, is arranged in a force-fitting, form-fitting and / or material-locking manner in the opening which passes through the head region and the foot region of the connecting element, wherein the connecting element is connected to the closing element by means of a fastening element which is arranged within the sleeve of the connecting element and a recess of the closing element, an upper edge of the sleeve not being flush with an upper side of the head region of the connecting element, the connecting element being at least one of the Center axis of the connecting element spaced through the head region of the connecting element has a further continuous opening, in which a further sleeve is arranged in a force-fitting, positive-locking and / or material-locking manner, the connecting element being connected by means of a further fastening element which is located within the further sleeve of the connecting element and a recess in the Striking plate
  • a connecting element made of an elastic material, in particular made of polyurethane (PUR), between the closing element and the striking plate makes it possible to compensate for manufacturing tolerances and angular errors in the contact surface of the housing of the non-return valve and also to reduce the vibrations within the pipeline that occur when the closing device is closed.
  • PUR polyurethane
  • the connecting element forms a flexible connection between the closing element and the striking plate, which is deformed due to external forces.
  • the external forces deforming the connecting element become generated on the one hand by the dead weight of the closing element and on the other hand by the impulse when the closing element strikes the contact surface of the housing of the non-return valve.
  • the closure device according to the invention is thus able to compensate for manufacturing tolerances and angular errors in the contact surface of a housing of a non-return valve.
  • connecting element made of an elastic material is that, in contrast to connecting elements in the form of joints, the connecting element can be formed in one piece. While using a joint, in particular a ball or socket joint, the closing element is connected to the striking plate via at least two components that perform a relative movement against one another, which leads to frictional forces, such frictional forces do not occur in a one-piece connecting element made of an elastic material on.
  • the non-positive, positive and / or integral arrangement of the continuous sleeve, in particular a threaded sleeve, along the central axis of the connecting element enables the closing element to be connected to the connecting element in the foot region of the connecting element by means of the fastening element.
  • the fastening element As a result of the sleeve projecting over the top of the head region, that is to say because of the upper edge of the sleeve which is not flush with the top of the head region of the connecting element, the fastening element, if this should have a larger diameter than the sleeve in the region projecting over the sleeve, does not rest on the top of the connecting element.
  • a gap is consequently formed between the fastening element and the upper side of the head region of the connecting element. This gap ensures that the elastic properties of the connecting element are not influenced by the fastening element.
  • the fastening element is connected to the closing element through the sleeve. This results in a positive and / or non-positive connection of the connecting element with the closing element. Screw connections have proven to be advantageous for the connection between the closing element and the connecting element.
  • the arrangement of the further sleeve in the head region of the connecting element enables the region in which the further fastening element is arranged to reinforce. As a result, damage to the connecting element and possibly associated tearing out of the further fastening element are prevented.
  • the further fastening element is connected to the striking plate through the further sleeve. This results in a positive and / or non-positive connection of the connecting element with the striking plate. Screw connections have proven to be advantageous for the connection between the striking plate and the connecting element.
  • a possible area of application of a backflow preventer with a closure device is the use in a pipeline system and / or a supply and / or discharge of a wastewater lifting plant.
  • Wastewater lifting plants are automatically working plants which periodically or when a certain fill level of a storage container filled with waste water is present Pump out of this storage container and feed it to a further piping system.
  • Wastewater lifting plants are usually located at the lowest point of the conveyor line, which is why after switching off the feed pump, which pumps the wastewater from the reservoir, residual water, which is located between the feed pump and the apex of the conveyor line, flows back towards the feed pump or reservoir.
  • the residual water flowing back can cause damage to the sewage lifting unit and in particular to the feed pump or the pipes. Damage to the feed pump and / or the pipeline
  • today's wastewater lifting plants are usually provided with a backflow preventer, which prevents the residual water from flowing back towards the feed pump.
  • the connecting element is advantageously a damping element.
  • the connecting element In order to compensate for manufacturing tolerances and angular errors of the contact surface of the housing of a non-return valve and also to reduce the vibrations within a pipeline and / or a non-return valve, in particular within the closure device, it makes sense to design the connecting element as a damping element.
  • the connecting element is designed in such a way that it is able to absorb kinetic energy that would lead to vibrations within the closure device, the non-return valve and / or the pipeline if the closing element strikes the contact surface of the non-return valve.
  • connection element enables axial suspension or elastic deformation along the central axis of the connecting element.
  • the kinetic energy of the closing element is mostly via the Components of the joint made of metal are passed on to the striking plate without damping and thus passed on to the backflow preventer and the pipeline via the closure device.
  • the connecting element described in the prior art is not able to deform in a defined manner in the axial direction along the central axis of the connecting element and thus to absorb kinetic energy of the closure device.
  • the distance between the striker and striker remains the same except for the striker tipping over the striker.
  • the connecting element according to the invention is made of an elastic material and is attached between the striking plate and the closing element in such a way that it can deform elastically in the axial direction along the central axis of the connecting element. Consequently, the connecting element is briefly compressed when the closing element strikes the contact surface of the housing of the non-return valve, thus reducing the distance between the closing element and the striking plate and thus absorbing energy which would lead to vibrations in a connecting element according to the prior art.
  • the connecting element has a T-shaped cross section.
  • the lower vertical part of the connecting element is referred to as the foot region.
  • the horizontal, upper area that adjoins the top of the foot area is referred to as the head area of the connecting element (see also Fig. 2c ).
  • Such a configuration makes it possible to connect the striking plate to the head region and the closing element via a separate fastening to the connecting element.
  • Such attachment enables the axial movement of the connecting element along the central axis of the connecting element and thus the damping effect of the connecting element.
  • the damping properties are improved the further away the fastening of the striking plate to the connecting element is from the central axis of the connecting element.
  • the edge region means in particular the part of the head region of the connecting element which has a larger diameter than the diameter of the foot region of the connecting element.
  • the connecting element Due to the separate connection of the locking element and striking plate to the connecting element, the connecting element is able to perform both tilting movements and also movements along the central axis of the connecting element.
  • the connecting element expediently has a cutout on an underside of the head region.
  • the recess on the lower and / or upper side of the head area increases the elastic deformation properties of the connecting element and thus the possibility of compensating for manufacturing tolerances and angular errors of the contact surface of the housing of the check valve.
  • the cutout on the bottom and / or top of the head area is not continuous.
  • the cut-out is advantageously arranged on a lower side of the head region of the connecting element in a rotationally symmetrical manner around the foot region of the connecting element.
  • a symmetrical configuration of the recess around the foot region has the advantage that the connecting element does not have a preferred direction in which a tilting of the connecting element is simplified.
  • An advantageous embodiment of the invention provides that a tear-off washer in the form of a washer is arranged between the sleeve, in particular the threaded sleeve, and the connecting element.
  • the locking element and striking plate are only connected to one another via the connecting element. If the connecting element were to become fatigued, it would be possible for the sleeve, in particular the threaded sleeve, to break out of the connecting element and tear off the closing element completely from the striking plate.
  • the fastening element which connects the closing element and the connecting element to one another, is formed continuously through the connecting element.
  • a tear-off washer is arranged between the fastening element and the top of the head region of the connecting element.
  • This tear-off letter has a diameter which is larger than the diameter of the foot region of the connecting element and the diameter of the recess in the striking plate in which the connecting element is arranged. This ensures that at damage to the connecting element does not completely tear off the closing element from the striking plate.
  • the tear-off disk expediently has a diameter which is larger than the diameter of the sleeve, in particular the threaded sleeve, preferably larger than the diameter of the foot region of the connecting element.
  • the fastening element of the closing element and the sleeve, in particular the threaded sleeve in which the fastening element of the closing element is arranged cannot become detached from the connecting element.
  • the tear-off disk can have a diameter which is greater than the diameter of the foot region of the connecting element or the diameter of the recess in the striking plate in which the connecting element can be arranged.
  • Such a large configuration of the tear-off disk makes it possible that even if the connecting element is damaged over a large area in the order of the diameter of the foot region of the connecting element, the closing element cannot detach from the striking plate.
  • the tear-off disc is advantageously arranged such that a gap is formed between the top of the head region of the connecting element and the bottom of the tear-off disc.
  • the tear-off letter lies only on the sleeve, in particular the threaded sleeve, which is not flush with the top of the head region of the connecting element. This creates a cavity between the underside of the tear-off disc and the top of the head region of the connecting element.
  • Fig. 1 shows a locking element 12 and a locking plate 14 of a locking device 10 according to the invention, which are connected to one another by means of a connecting element 16 according to the invention, in two different representations.
  • Fig. 1a shows a spatial representation of the components mentioned.
  • the figure shows a fastening element 18 for fastening the closing element 12 to the connecting element 16.
  • the tear-off disk 24 arranged above the upper side 20 of the head region 22 of the connecting element 16 can be seen.
  • the striking plate 14 is fastened to the connecting element 16 by means of further fastening elements 26.
  • a sealing ring 28 is arranged on the underside of the closing element 12 and is connected to the closing element 12 via separate fastening elements 30.
  • Fig. 1b shows a closing element 12, which is fastened to a striking plate 14 by means of a connecting element 16 according to the invention, a closing device 10 according to the invention in a plan view.
  • the figure shows the tear-off letter 24 arranged above the upper side 20 of the connecting element 16.
  • Fig. 2 shows a connecting element 16 according to the invention in a spatial representation, a top view and a cross-sectional view.
  • the connecting element 16 according to the invention is shown in a spatial view.
  • further sleeves 34 In the edge region of the head region 22 or at a distance from the central axis 32 of the connecting element 16, further sleeves 34, in particular six further sleeves 34, are arranged at equal intervals both to the central axis 32 and to one another.
  • a sleeve 36 in particular a threaded sleeve, is arranged centrally in the connecting element 16. This sleeve 36 is arranged continuously in the connecting element 16 and does not end flush with the upper side 20 of the connecting element 16. In particular, the sleeve 36 projects beyond the upper side 20 of the connecting element 16.
  • Fig. 2b shows a connecting element 16 according to the invention in a plan view.
  • a sleeve 36 In the center or along the central axis 32 of the connecting element 16 is a sleeve 36, in particular a threaded sleeve, and in the edge region of the head region 22 or at a distance from the central axis 32 of the connecting element 16 there are further sleeves 34, in particular six further sleeves 34, which are evenly spaced both to the central axis 32 and to each other.
  • Fig. 2c shows a connecting element 16 according to the invention in a cross-sectional view along the axis AA (s. Fig. 2b ).
  • the connecting element 16 has a T-shaped cross section, which can be divided into a head region 22 and a foot region 38.
  • the head region 22 has a larger diameter than the foot region 38.
  • Further sleeves 34 are arranged in the edge region of the head region 22 or at a distance from the central axis 32 of the connecting element 16. These further sleeves 34 are formed continuously through the head region 22 of the connecting element 16.
  • a sleeve 36 in particular a threaded sleeve, is arranged in the center or along the central axis 32 of the connecting element 16.
  • This sleeve 36 does not end flush with the top 20 of the head region 22 of the connecting element 16, rather the sleeve 36 projects beyond the top 20 of the head region 22 of the connecting element 16.
  • the underside 40 of the head region 22 of the connecting element 16 has a cutout 42 which extends radially symmetrically around the foot region 38 of the connecting element 16.
  • FIG. 3 shows two cross sections along the axes BB and CC (s. Fig. 1b ) of individual components of a closure device according to the invention 10.
  • a locking element 12 which is connected to a locking plate 14 via a connecting element 16 according to the invention, is shown in a cross-sectional view along the axis BB.
  • the striking plate 14 is arranged on the underside 40 of the connecting element 16. It can be seen here that the thickness of the striking plate 14 is less than the height of the foot region 38 of the connecting element 16. Since the closing element 12 is arranged on the underside of the foot region 38 of the connecting element 16, the bottom surface of the striking plate 14 and the upper side of the Closing element 12 has a cavity 44 which is delimited at the top and bottom.
  • the recess in the striking plate 14, in which the foot region 38 of the connecting element 16 is arranged, has the same diameter as the foot region 38 of the connecting element 16.
  • the closing element 12 is connected to the connecting element 16 by means of a fastening element 18 which extends through a sleeve 36.
  • the sleeve 36 does not end flush with the top 20 of the head region 22 of the connecting element 16.
  • the sleeve 36 projects beyond the top 20 of the head region 22 of the connecting element 16.
  • a tear-off disc 24 is arranged on the top of the sleeve 36.
  • the tear-off disc 24 has a diameter that is larger than the diameter of the foot region 38 of the connecting element 16 or the diameter of the recess in the Strike plate 14 in which the connecting element 16 is arranged.
  • Fig. 3b shows a section of a closure device 10 according to the invention in cross section along the axis CC (see Fig. 1b ).
  • the section CC runs through the further fastening elements 26, which connect the striking plate 14 to the connecting element 16. Consequently, compared to Fig. 3a the sleeves 34 of the connecting element 16 are shown. These sleeves 34 are arranged continuously in the edge region of the head region 22 of the connecting element 16.
  • the further fastening elements 26, which connect the striking plate 14 to the connecting element 16 are arranged in the sleeves 34 and the cutouts 46.
  • Fig. 4 shows a cross section of a backflow preventer 50, in which a closure device 10 according to the invention is installed with a connecting element 16 according to the invention.
  • the closure device is in a closed state.
  • the sealing ring 28 lies on the contact surface 52 of the housing 54 of the non-return valve 50 at.
  • backflow of the residual water against the flow direction 56 is prevented.
  • the closing element 12 pivots into a largely horizontal position and releases the backflow preventer 50 in the flow direction 56.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Pipe Accessories (AREA)
  • Massaging Devices (AREA)

Claims (9)

  1. Obturateur (10) pour un clapet de non-retour (50) d'une canalisation, comprenant un élément de fermeture (12), une plaque de verrouillage (14) montée en rotation et un élément de raccordement (16) raccordant mécaniquement l' élément de fermeture (12) à la plaque de verrouillage (14), dans lequel l'élément de raccordement (16) qui présente une partie de tête (22) et une partie de pied (38) est composé d'un matériau élastique, et dans lequel l'élément de raccordement (16) présente le long d'un axe central (32) une ouverture traversant la partie de tête (22) et la partie de pied (38) de l'élément de raccordement (16), caractérisé en ce que dans l'ouverture traversant la partie de tête (22) et la partie de pied (38) de l'élément de raccordement (16), une douille (36), en particulier une douille filetée, est disposée par adhérence, par complémentarité de forme et/ou par liaison de matière, dans lequel l'élément de raccordement (16) est raccordé à l'élément de fermeture (12) au moyen d'un élément de fixation (18) disposé à l'intérieur de la douille (36) de l'élément de raccordement (16) et d'un creux de l'élément de fermeture (12), dans lequel un bord supérieur de la douille (36) n'est pas à fleur avec une face supérieure (20) de la partie de tête (22) de l'élément de raccordement (16), dans lequel l'élément de raccordement (16) présente au moins une ouverture supplémentaire espacée par rapport à l'axe central (32) de l'élément de raccordement et traversant la partie de tête (22) de l'élément de raccordement (16) dans laquelle une douille supplémentaire (34) est disposée par adhérence, par complémentarité et/ou par liaison de matière, dans lequel l'élément de raccordement (16) est relié à la plaque de fermeture (14) au moyen d'un élément de fixation supplémentaire (26) disposé à l'intérieur de la douille supplémentaire (34) de l'élément de raccordement (16) et un creux (46) de la plaque de fermeture (14).
  2. Dispositif de fermeture (10) selon la revendication 1, caractérisé en ce que l'élément de raccordement (16) est un élément amortisseur.
  3. Dispositif de fermeture (10) selon l'une quelconque des revendications 1 à 2, caractérisé en ce que l'élément de raccordement (16) présente une section transversale en forme de T.
  4. Dispositif de fermeture (10) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'élément de raccordement (16) présente un creux (42) sur la face inférieure de la partie de tête (22).
  5. Dispositif de fermeture (10) selon la revendication 4, caractérisé en ce que le creux (42) est disposé sur une face inférieure de la partie de tête (22) à symétrie de révolution autour de la partie de pied (38) de l'élément de raccordement (16).
  6. Dispositif de fermeture (10) selon la revendication 1, caractérisé en ce qu'un disque de décrochage (24) sous la forme d'une rondelle de calage est disposé entre la douille (36), en particulier la douille filetée, et l'élément de raccordement (16).
  7. Dispositif de fermeture (10) selon la revendication 6, caractérisé en ce que le disque de décrochage (24) présente un diamètre supérieur au diamètre de la douille (36), en particulier de la douille filetée, de préférence supérieur au diamètre de la partie de pied (38) de l'élément de raccordement (16) .
  8. Dispositif de fermeture (10) selon l'une quelconque des revendications 6 à 7, caractérisé en ce que le disque de décrochage (24) est disposé de façon à créer un interstice entre la face supérieure (20) de la partie de tête (22) de l'élément de raccordement (16) et la face inférieure du disque de décrochage (24).
  9. Dispositif de fermeture (10) selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le matériau élastique est du PUR.
EP18170727.4A 2014-09-08 2015-09-03 Dispositif de fermeture pour un clapet anti-retour Active EP3375945B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18170727T PL3375945T3 (pl) 2014-09-08 2015-09-03 Urządzenie zamykające dla zaworu blokującego przepływ zwrotny

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014112867.2A DE102014112867B4 (de) 2014-09-08 2014-09-08 Verschlussvorrichtung für einen Rückflussverhinderer
EP15183613.7A EP2993276B1 (fr) 2014-09-08 2015-09-03 Dispositif de fermeture pour un clapet anti-retour

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP15183613.7A Division EP2993276B1 (fr) 2014-09-08 2015-09-03 Dispositif de fermeture pour un clapet anti-retour
EP15183613.7A Division-Into EP2993276B1 (fr) 2014-09-08 2015-09-03 Dispositif de fermeture pour un clapet anti-retour

Publications (2)

Publication Number Publication Date
EP3375945A1 EP3375945A1 (fr) 2018-09-19
EP3375945B1 true EP3375945B1 (fr) 2020-05-13

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EP18170727.4A Active EP3375945B1 (fr) 2014-09-08 2015-09-03 Dispositif de fermeture pour un clapet anti-retour
EP15183613.7A Active EP2993276B1 (fr) 2014-09-08 2015-09-03 Dispositif de fermeture pour un clapet anti-retour

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15183613.7A Active EP2993276B1 (fr) 2014-09-08 2015-09-03 Dispositif de fermeture pour un clapet anti-retour

Country Status (5)

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EP (2) EP3375945B1 (fr)
DE (1) DE102014112867B4 (fr)
DK (2) DK2993276T3 (fr)
HR (1) HRP20210626T1 (fr)
PL (2) PL3375945T3 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312290A (en) * 1940-11-16 1943-02-23 Crane Co Valve
US2925827A (en) * 1955-10-14 1960-02-23 Crane Co Swing check valve
DE2229121A1 (de) * 1972-06-15 1974-01-10 Hans Schroeder Absperrvorrichtung fuer rueckflutendes kanalisationswasser
US3972504A (en) * 1974-12-02 1976-08-03 Ametek, Inc. Main steam isolation check valve
US4120318A (en) * 1977-09-12 1978-10-17 Acf Industries, Incorporated Dampening means for swing check valve
FR2439347A1 (fr) * 1978-10-18 1980-05-16 Etude Realisa Tolerie Mecaniqu Dispositif d'ouverture-fermeture a volet d'obturation interchangeable, notamment pour gaines de ventilation utilisant un fluide agressif ou polluant
JPS5728931U (fr) * 1980-07-25 1982-02-16
DE4130292A1 (de) * 1991-09-12 1993-03-18 Ford Werke Ag Elastische befestigungsanordnung von bauelementen an bauteilen
JPH05332460A (ja) * 1992-06-03 1993-12-14 Hans D Baumann 偏心回転プラグ弁
US5671769A (en) * 1995-10-27 1997-09-30 H-Tech, Inc. Swing check valve and method for repairing same
DE19910254C2 (de) 1999-03-08 2003-01-02 Kessel Gmbh Hebeanlage für Abwasser
CA2310991A1 (fr) * 1999-07-06 2001-01-06 Stephen C. Florence Clapet de non-retour a battant
US6679290B2 (en) * 2000-06-08 2004-01-20 Dixon Bayco Limited Swing check valve
DE102010051156B4 (de) 2010-11-15 2014-01-09 Viega Gmbh & Co. Kg Rückschlagventil

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102014112867A1 (de) 2016-03-10
PL3375945T3 (pl) 2020-11-16
EP2993276A2 (fr) 2016-03-09
DK3375945T3 (da) 2020-08-03
DE102014112867B4 (de) 2016-06-23
PL2993276T3 (pl) 2021-07-12
EP3375945A1 (fr) 2018-09-19
DK2993276T3 (da) 2021-04-19
EP2993276A3 (fr) 2016-06-15
HRP20210626T1 (hr) 2021-06-11
EP2993276B1 (fr) 2021-01-27

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