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WO2008051500A1 - Système d'installation pour dispositif de serrage de conduit - Google Patents

Système d'installation pour dispositif de serrage de conduit Download PDF

Info

Publication number
WO2008051500A1
WO2008051500A1 PCT/US2007/022385 US2007022385W WO2008051500A1 WO 2008051500 A1 WO2008051500 A1 WO 2008051500A1 US 2007022385 W US2007022385 W US 2007022385W WO 2008051500 A1 WO2008051500 A1 WO 2008051500A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling component
conduit
gaugeable
stop member
fitting
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.)
Ceased
Application number
PCT/US2007/022385
Other languages
English (en)
Inventor
John D. Karkosiak
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.)
Swagelok Co
Original Assignee
Swagelok Co
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 Swagelok Co filed Critical Swagelok Co
Publication of WO2008051500A1 publication Critical patent/WO2008051500A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/061—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends a pressure ring being arranged between the clamping ring and the threaded member or the connecting member
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
    • F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe
    • F16L19/083—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping

Definitions

  • Fittings are used to join or connect a conduit to another member, whether that other member is another conduit (such as through T-fittings and elbow fittings, for example), or a device configured to be in fluid communication with the conduit, such as, for example, a valve.
  • conduit as used herein includes, for example, metal tube and pipe.
  • Fittings may include an assembly of: 1) a conduit gripping device, often in the form of one or more conduit gripping members, such as ferrules or a gripping ring-like structure, and 2) a pull-up mechanism for causing the gripping device to be installed on a conduit end so as to grip the conduit and provide a seal against leakage.
  • pull-up simply refers to the operation of tightening the fitting assembly so as to complete the assembly of the fitting onto the conduit with the desired grip and seal.
  • the fitting and the conduit typically undergo plastic and elastic deformation to effect both a grip and a seal between the fitting and the conduit.
  • the locations in which a fitting is to be installed may make it challenging to pull-up the fitting.
  • Examples of such circumstances include close quarters with minimal clearance for operating a tightening tool, such as a wrench, or hazardous locations, in which maintenance activities are preferably minimized.
  • an arrangement is provided to install a conduit gripping member, such as, for example, a ferrule, collet, or olive, to a conduit, such as a tube or pipe.
  • a conduit gripping member such as, for example, a ferrule, collet, or olive
  • This installation may, for example, be conducted prior to assembly of a conduit with an associated fitting in a fluid system in order to reduce installation time of the fitting in the fluid system.
  • first and second coupling components are configured to tighten a conduit gripping member to the conduit when the second coupling component is tightened with the first coupling component to a predetermined axial position
  • a gaugeable stop member may be provided with the installation arrangement to identify when the conduit gripping member has been tightened to the conduit to a desired gripping engagement or gripping force. Engagement with the gaugeable stop member, for example, by the second coupling component, may indicate that the desired gripping engagement has been achieved.
  • a gaugeable stop member may be assembled with and movable with respect to a first coupling component.
  • the gaugeable stop member may be rotatable on the first coupling component.
  • the gaugeable stop member may further be positioned such that when a second coupling component is tightened with the first coupling component to a predetermined axial position, movement of the gaugeable stop member with respect to the first coupling component is impeded by, for example, engagement of the gaugeable stop member with the second coupling component.
  • Figure 1 is a partial cross-sectional schematic view of an arrangement for installing a conduit gripping device on a conduit
  • Figure 2 is a perspective view of a tool for installing a conduit gripping device on a conduit;
  • Figure 3 is a cross sectional view of the tool of Figure 2;
  • Figure 3 A is a cross sectional view of another tool for installing a conduit gripping device on a conduit.
  • the present application relates to conduit gripping arrangements that may be used with many types of fittings, such as, for example, tube fittings, and with many types of conduits, including, for example, tube and pipe. While the fittings of the exemplary embodiments described herein are consistent with a fitting body and nut that may be assembled with a tube, many different fitting arrangements may be used with the aspects of the present application, including fittings having one or more body components, and one or more conduit gripping members. Many types of fitting arrangements may be used to provide a fitting connection, including, for example, push-to-connect, tool-tightened (e.g., crimping or clamping), or threaded arrangements.
  • fitting connection including, for example, push-to-connect, tool-tightened (e.g., crimping or clamping), or threaded arrangements.
  • One exemplary fitting includes a threaded fitting body, a threaded fitting nut, and at least one ferrule for gripping and/or sealing with the conduit upon fitting installation.
  • the nut is assembled with the fitting body.
  • the at least one ferrule is installed within a cavity formed by the fitting body and the nut.
  • To assemble one such exemplary fitting to a conduit the conduit is inserted through the nut and ferrule and into the fitting body.
  • the threaded nut is tightened with the fitting body, driving the at least one ferrule into gripping and/or sealing engagement with the conduit.
  • the ferrule or ferrules may be pre-installed on a conduit by pre-tightening the ferrule or ferrules into gripping engagement with the conduit, creating a conduit and ferrule assembly that may be assembled with a fitting, for example, by tightening a fitting body and nut with the pre-installed ferrules.
  • pre-tightening or pre-installing the ferrule or ferrules on the conduit the time and/or effort to install a fitting to the conduit in a fluid system may be reduced.
  • Pre-installation of the ferrule or ferrules on the conduit may, but need not, include pre-tightening the ferrules to provide a gripping force with the conduit that is less than the gripping force of the ferrules in an assembled fitting, while still sufficient gripping force to retain the ferrules on the conduit as an assembly.
  • an increased gripping force may be applied to the ferrules by the fitting when the fitting is assembled with the conduit and ferrule assembly.
  • the fitting may be configured such that a predetermined amount of tightening of the fitting onto the conduit and ferrule assembly is sufficient for proper make-up of the fitting.
  • the predetermined amount of tightening of the fitting may be identified by a predetermined axial position of the nut with respect to the body, as identified, for example, by a gap inspection gage, or a predetermined number of turns beyond a reference point, such as, for example, a finger-tight position of the nut on the fitting body.
  • a conduit gripping device onto a conduit to a predetermined gripping force or gripping engagement with the conduit
  • proper subsequent make-up of a fitting with the conduit and conduit gripping member may be achieved by tightening a fitting nut a predetermined number of turns beyond a finger tight position.
  • This pre-tightening of a ferrule or ferrules to a conduit may be performed using fitting coupling components, such as a fitting body and nut, assembled with the conduit and the ferrule or ferrules.
  • fitting coupling components such as a fitting body and nut
  • One or both of the fitting body and nut used for pre-tightening may be the same fitting body and nut subsequently used with the conduit in a fluid assembly; alternatively, one or both of the fitting body and nut may be replaced by another fitting body and/or nut when the conduit is assembled in the fluid system.
  • a tool may be used to pre-tighten a ferrule or ferrules to a conduit.
  • One such exemplary installation tool includes a first coupling component or body portion, and a second coupling component or tightening portion, which cooperate to pre- tighten or pre-install the ferrule or ferrules onto the conduit.
  • the body portion and tightening portion of an installation tool may be provided in many different configurations for pre-tightening a ferrule or ferrules onto a conduit, including, for example, clamping, compressing, or threading arrangements.
  • the body portion and tightening portion may be provided with threaded portions and internal surface geometries configured to tighten one or more ferrules to a conduit when the tightening portion is tightened with the body portion over the conduit and ferrule or ferrules.
  • threaded coupling components may include, for example, the body and nut of a fitting or the body portion and tightening portion of a manual installation tool.
  • conduit gripping device tightening arrangement such as a tool or fitting components, may be gaugeable, such that a predetermined or repeatable gripping engagement or gripping force may be established between the conduit gripping device and the conduit by providing a measurement or mechanism to identify when the conduit gripping device has been properly pre-tightened to the conduit.
  • a threaded coupling component may be advanced or rotated a predetermined number of turns beyond a reference point, such as, for example, a finger tight position.
  • a threaded coupling component may be tightened to a predetermined torque measurement or to a noticeable or measurable change in torque.
  • a coupling component or tightening portion may be compressed, threaded, or otherwise tightened to a predetermined axial position with respect to another coupling component or body portion.
  • a tightening arrangement 10 for a conduit gripping device 5, such as, for example, a ferrule or ferrules includes first and second coupling components 3, 7 that are configured to tighten the conduit gripping device 5 to a conduit 2 when the second coupling component 7 is tightened with the first coupling component 3 to a predetermined axial position (with respect to the first coupling component).
  • These coupling components 3, 7 may, for example, include portions of an installation tool, or a fitting body and nut that may, but need not, be subsequently used with the conduit 2 and conduit gripping device 5 in the fluid system in which the conduit 2 is to be assembled.
  • a structure 9 (such as, for example, a flange or a collar) may be provided with one of the first and second coupling components 3, 7, the structure 9 being positioned to function as a "gaugeable stop," such that the other of the first and second coupling components engages the structure or gaugeable stop member 9 when the second coupling component 7 is tightened to the predetermined axial position.
  • the first and second coupling components 3, 7 and the gaugable stop 9 may be constructed from many different materials, including metals such as, for example, stainless steels, nickel alloys, and copper alloys.
  • the coupling components 3, 7 may be provided from materials selected based on desired properties, such as, for example, hardness and machinability, and the gaugeable stop member 9 may be provided from materials selected based on other desired properties, such as, for example, availability or density.
  • Engagement between a coupling component and a gaugeable stop member may include many different conditions, including, for example, initial contact between the coupling component and the stop, a certain amount of deformation of the stop member and/or the coupling component, or fracture or separation of the stop member from the other coupling component.
  • a gaugeable stop member may include a rigid shoulder, ledge, or other such projection extending from a first threaded coupling component and positioned to engage a second threaded coupling component when the second coupling component is tightened to a predetermined axial position.
  • a gaugeable stop member may be assembled to a first coupling component, such that the gaugeable stop member is movable with respect to the coupling component to which the stop member is assembled.
  • the gaugeable stop member may be positioned such that when a second coupling component is threaded with the first coupling component to a predetermined axial position, the second coupling components engages the gaugeable stop member, either directly or indirectly through an intermediary component, such that movement of the gaugeable stop member with respect to the first coupling component is impeded. Impeded movement of the gaugeable stop member may include, for example, resistance or a noticeable drag on movement of the gaugeable stop member, or immobility of the gaugeable stop member.
  • a gaugeable stop member may include a stop collar assembled with a threaded body such that the stop collar may be rotated on the body.
  • a mating coupling component such as a nut
  • a predetermined axial position on the body such as an axial position at which a ferrule or ferrules are tightened into gripping engagement with a conduit
  • the mating coupling component engages the stop collar, such that rotation of the stop collar on the body is impeded.
  • Figures 2 and 3 illustrate an exemplary installation or tightening tool 100 for pre-tightening a conduit gripping device, such as a ferrule or ferrules 150a, 150b, to a conduit 120, as shown in the cross-sectional view of Figure 3.
  • the tool 100 includes a body portion 130 and a tightening portion or nut 170.
  • the body portion 130 may be provided with flatted surfaces 134 or other suitable gripping surfaces to facilitate gripping the body 130, such as with a vice, during pre-installation of the ferrules 150a, 150b on the conduit 120.
  • the nut 170 may be provided with flats, holes, or other engaging surface to facilitate engagement with a tightening tool, such as, for example, a wrench.
  • the exemplary body portion 130 and nut 170 are provided with threaded portions 131, 171, ferrule engaging surfaces 133, 173, and conduit receiving bores 132, 172 that are consistent with the corresponding portions of a fitting body and nut (not shown) with which the conduit 120 and ferrules 150a, 150b are to be assembled, thereby providing a ferrule pre-tightening or installation process consistent with that resulting from make-up of the fitting.
  • the threaded portion 131 of the body 130 may be integral with the body 130, as shown in Figure 3, or may be provided on a threaded member 131 ' that is assembled with the body 130' (e.g., by a press fit engagement), as shown in Figure 3 A.
  • the threaded portion 131 ' and the body 130' may be provided in different materials, for example, to enhance pre-tightening performance of the threaded portion while providing the body in a more readily available or cost-effective material.
  • the threaded portion 131 ' may be provided in 17-4PH stainless steel
  • the body 130' may be provided in a 300 series stainless steel.
  • a gaugeable stop member may be assembled with either a body portion or nut portion of a ferrule tightening arrangement to identify proper tightening of a ferrule or ferrules to a conduit when the nut is advanced or tightened to a predetermined axial position with respect to the body portion.
  • a gaugeable stop member or stop collar 190 is assembled with the body 130.
  • the exemplary stop collar 190 is rotatable on the body 130, and is configured such that when the nut 170 is tightened with the body 130 to a predetermined axial position, rotation of the stop collar 190 becomes impeded.
  • Many different mechanisms may be utilized to facilitate rotation of the stop collar on the body, including, for example, lubricants, mating threads, or one or more bearing components, such as, for example, spacers, O-rings, or ball bearings.
  • the stop collar 190 is configured to ride on one or more ball bearings 193 to rotate on the body 130.
  • the ball bearing 193 may be secured in a recess 195 in the stop collar 190 in alignment with a circumferential groove 135 in the body 130, along which the ball bearing 193 may travel when the stop collar 190 is rotated.
  • the nut 170 When the nut 170 is tightened with the body 130 to a predetermined axial position, the nut 170 engages the stop collar 190, thereby impeding rotation of the stop collar 190 on the body 130.
  • Many different mechanisms may be used to hold a gaugeable stop member, such as, for example, a stop collar, onto a threaded coupling component in a movable condition.
  • the holding mechanisms include, for example, fasteners, crimping, threaded engagement, press fit engagement, or slipping a gaugable stop over an end of a body portion, such that the gaugeable stop member may be removed from the body portion after the nut is unthreaded from the body.
  • the ball bearing 193 of the exemplary arrangement may serve to hold the stop collar 190 on the body 130 in a freely movable condition.
  • the ball bearing 193 may be received between the recess 195 and the groove 135 through a side bore 197 in the stop collar, with a plug or set screw 196, or other suitable component installed in the side bore 197 to secure the ball bearing 193 in the recess 195.
  • a bearing component such as, for example, a roller bearing
  • the bearing component may be assembled between the stop collar and the tool body to provide for free rotation of the stop collar on the tool body until a nut is tightened on the tool body threads to a predetermine axial position, such that rotation of the stop collar is impeded.
  • a tool 100' includes a cylindrical roller bearing 193' having an outer portion 198' press fit into a stop collar 190' and an inner portion 199' press fit onto a tool body 130'.
  • the roller bearing 193' includes rolling elements 194' between the outer and inner portions 198', 199', which allow the stop collar 190' and outer portion 198' to freely rotate on the inner portion 199' and body 130'.
  • the bearing component may be integral to or assembled with a tool body for alignment and engagement with a corresponding inner bearing surface on a stop collar.
  • a conduit and at least one conduit gripping member are inserted into a first coupling component having a movable gaugeable stop member, such as, for example, the body portion 130 and gaugeable stop member 190 of the arrangement 100 of Figures 2 and 3.
  • a second coupling, component such as, for example, the nut portion 170 of Figures 2 and 3, is tightened with the first coupling component until engagement between the second coupling component and the gaugeable stop member impedes movement of the gaugeable stop member with respect to the first coupling component.
  • the conduit gripping member is pre-installed on the conduit, hi the illustrated embodiment of Figures 2 and 3, the stop collar 190 may be periodically rotated on the body portion 130 as the nut 170 is tightened. When the stop collar 190 is no longer free to rotate, the desired pre-tightening of the ferrules on the conduit has been achieved.
  • the conduit and installed conduit gripping member are then removed from the first coupling component, and may be stored for future installation in a fluid system or transported to the fluid system for immediate installation. [0025]
  • the conduit and pre-installed conduit gripping member are inserted into a fitting body.
  • a fitting nut is tightened with the fitting body to a predetermined pull-up position.
  • This predetermined pull-up position may be based on many different measurements or mechanisms, such as, for example, a predetermined axial position of the nut with respect to the body, a torque measurement or noticeable change in tightening torque, or a predetermined number of turns beyond a reference point, such as, for example, a finger-tight position of the nut on the fitting body.
  • proper pull-up of an exemplary fitting with a pre-tightened conduit gripping member may be achieved by tightening the nut one half turn (180°) beyond the finger tight position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention concerne un système d'installation d'un dispositif de serrage de conduit sur la paroi externe d'un conduit, lequel comporte un premier et un second composant de couplage et un élément d'arrêt réglable. Le second composant de couplage est conçu de manière à être serré avec le premier composant de couplage afin d'installer ledit au moins un élément de serrage de conduit sur le conduit. L'élément d'arrêt réglable est assemblé au premier élément de couplage de sorte que l'élément d'arrêt réglable peut se déplacer par rapport au premier composant de couplage. Le serrage du second composant de couplage au premier composant de couplage empêche tout mouvement de l'élément d'arrêt réglable par rapport au premier composant de couplage.
PCT/US2007/022385 2006-10-23 2007-10-22 Système d'installation pour dispositif de serrage de conduit Ceased WO2008051500A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85366806P 2006-10-23 2006-10-23
US60/853,668 2006-10-23

Publications (1)

Publication Number Publication Date
WO2008051500A1 true WO2008051500A1 (fr) 2008-05-02

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ID=39106242

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/022385 Ceased WO2008051500A1 (fr) 2006-10-23 2007-10-22 Système d'installation pour dispositif de serrage de conduit

Country Status (1)

Country Link
WO (1) WO2008051500A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8813348B2 (en) 2008-06-02 2014-08-26 Swagelok Company Fitting assembly evaluating apparatus
US8997325B2 (en) 2009-02-20 2015-04-07 Swagelok Company Fitting assembly evaluating apparatus and methods
US9556979B2 (en) 2009-02-20 2017-01-31 Swagelok Company Fitting assembly evaluating apparatus
EP3431851A1 (fr) * 2010-10-15 2019-01-23 Swagelok Company Raccord de conduit à connexion par pression à virole
US10458582B2 (en) 2015-04-23 2019-10-29 Swagelok Company Single action push to connect conduit fitting with colleting
US10619780B2 (en) 2013-10-24 2020-04-14 Swagelok Company Single action push to connect conduit fitting
US10704722B2 (en) 2015-04-23 2020-07-07 Swagellok Company Single action push to connect conduit fitting
US11781688B2 (en) 2019-04-01 2023-10-10 Swagelok Company Push to connect conduit fitting assemblies and arrangements

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07243564A (ja) * 1994-03-03 1995-09-19 Zexel Corp 管継手
WO2001020214A1 (fr) * 1999-09-13 2001-03-22 Swagelok Company Raccord pourvu d'un dispositif indicateur
EP1612467A2 (fr) * 2004-06-30 2006-01-04 Chuchu-Decayeux Dispositif de raccord d'un tuyau, procédé de montage associé et dispositif de tirette

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07243564A (ja) * 1994-03-03 1995-09-19 Zexel Corp 管継手
WO2001020214A1 (fr) * 1999-09-13 2001-03-22 Swagelok Company Raccord pourvu d'un dispositif indicateur
EP1612467A2 (fr) * 2004-06-30 2006-01-04 Chuchu-Decayeux Dispositif de raccord d'un tuyau, procédé de montage associé et dispositif de tirette

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9556981B2 (en) 2008-06-02 2017-01-31 Swagelok Company Fitting assembly evaluating apparatus
US8813348B2 (en) 2008-06-02 2014-08-26 Swagelok Company Fitting assembly evaluating apparatus
US8997325B2 (en) 2009-02-20 2015-04-07 Swagelok Company Fitting assembly evaluating apparatus and methods
US9556979B2 (en) 2009-02-20 2017-01-31 Swagelok Company Fitting assembly evaluating apparatus
US10316997B2 (en) 2009-02-20 2019-06-11 Swagelok Company Fitting assembly evaluating apparatus and methods
USRE50444E1 (en) 2009-02-20 2025-05-27 Swagelok Company Fitting assembly evaluating apparatus and methods
US11002395B2 (en) 2010-10-15 2021-05-11 Swagelok Company Push to connect conduit fitting with ferrule
EP3431851A1 (fr) * 2010-10-15 2019-01-23 Swagelok Company Raccord de conduit à connexion par pression à virole
US10584820B2 (en) 2010-10-15 2020-03-10 Swagelok Company Push to connect conduit fitting with ferrule
US10619780B2 (en) 2013-10-24 2020-04-14 Swagelok Company Single action push to connect conduit fitting
US10458582B2 (en) 2015-04-23 2019-10-29 Swagelok Company Single action push to connect conduit fitting with colleting
US11073234B2 (en) 2015-04-23 2021-07-27 Swagelok Company Single action push to connect conduit fitting
US10704722B2 (en) 2015-04-23 2020-07-07 Swagellok Company Single action push to connect conduit fitting
US11781688B2 (en) 2019-04-01 2023-10-10 Swagelok Company Push to connect conduit fitting assemblies and arrangements
US12435820B2 (en) 2019-04-01 2025-10-07 Swagelok Company Push to connect conduit fitting assemblies and arrangements

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