EP1577604B1 - Valve with counternut - Google Patents

Valve with counternut Download PDF

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Publication number
EP1577604B1
EP1577604B1 EP20040101075 EP04101075A EP1577604B1 EP 1577604 B1 EP1577604 B1 EP 1577604B1 EP 20040101075 EP20040101075 EP 20040101075 EP 04101075 A EP04101075 A EP 04101075A EP 1577604 B1 EP1577604 B1 EP 1577604B1
Authority
EP
European Patent Office
Prior art keywords
thread
ring
tap
container
valve
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.)
Expired - Lifetime
Application number
EP20040101075
Other languages
German (de)
French (fr)
Other versions
EP1577604A1 (en
Inventor
Paul Kremer
Paul Muzzo
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.)
Luxembourg Patent Co SA
Original Assignee
Luxembourg Patent Co SA
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 Luxembourg Patent Co SA filed Critical Luxembourg Patent Co SA
Priority to EP20040101075 priority Critical patent/EP1577604B1/en
Priority to AT04101075T priority patent/ATE383542T1/en
Priority to DE200460011179 priority patent/DE602004011179D1/en
Priority to JP2005067729A priority patent/JP5084107B2/en
Priority to US11/079,353 priority patent/US7418974B2/en
Priority to CNB2005100545998A priority patent/CN100462600C/en
Priority to KR1020050021886A priority patent/KR20060043705A/en
Publication of EP1577604A1 publication Critical patent/EP1577604A1/en
Application granted granted Critical
Publication of EP1577604B1 publication Critical patent/EP1577604B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/068—Special properties of materials for vessel walls
    • F17C2203/069—Break point in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0329—Valves manually actuated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0391—Arrangement of valves, regulators, filters inside the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/036—Avoiding leaks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/044—Avoiding pollution or contamination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1654—Separable valve coupling or conduit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88054—Direct response normally closed valve limits direction of flow

Definitions

  • the present invention relates to a valve for a gas container, or liquefied gas, or other fluid, having a valve body having a main body portion and a base provided with a first external thread for connecting the faucet to the d-neck.
  • a container of gas, or liquefied gas, or other fluid the base of the valve body being provided with a second external thread located between the first thread and the main part of the body, and a ring provided with a internal thread screwed on the second thread, this ring having a lower end for directly engaging the neck of the container and an upper end to the other side of the ring.
  • a tap of this type is disclosed in the document FR-A-2,602,303 .
  • the ring of this document is a sealing ring provided with seals for engaging the container neck and the valve body.
  • DE-C-922 265 discloses a valve with a ring screwed on the body of the valve to compress seals.
  • valve of a gas container is normally provided with a base having a conical external thread which is screwed by the application of a predetermined torque in a threaded opening of a gas container.
  • the conical thread ensures the tight connection between the valve base and the container. If a lateral or axial violent impact is applied to the valve, the base can be deformed causing leaks through the threads between the base and the opening of the neck of the container. Such a leak must be avoided especially for highly oxidizing, reactive, corrosive and toxic gases used for example for the manufacture of micro-chips in the semiconductor industry.
  • Conventional valves for gas containers are provided with a single primary valve (single external seal) located in the valve body outside the container.
  • Valves provided with such a valve and a primary valve are internal and external double seal valves having the primary valve outside the vessel and the check valve therein.
  • these check valves can only prevent leakage of the contents of the container through the normal flow passage of the remaining valve body hub engaged in the opening of the container neck when the main body portion of the valve is cut off. but these valves can not prevent leakage through the threads of the base and the neck of the container in case of deformation of the base resulting from a violent impact applied to the valve.
  • the object of the present invention is to provide an improved valve for a container of gas, liquefied gas, or other fluid, preventing leakage of the contents of the container through the threads of the base and the neck of the container. after applying a violent shock to the faucet.
  • the valve of the type mentioned above is characterized in that the ring is a clamping ring adapted to be clamped with a defined torque against the neck of the container to maintain the integrity and sealing of the engagement screwed between the base and the container neck in the event of a violent impact applied to the body of the valve, and in that the ring is a clamping ring adapted for the purpose of being tightened with a defined torque against the neck of the container in order to maintain the integrity and the seal of the engagement screwed between the base and the neck of the container in the event of a violent impact applied to the body of the tap, and in that a weakening groove is formed in the body of the valve between the base and the main part, this weakening groove being arranged so that in the tight state of the ring, the groove is located in top of the ring just above the level of the upper end the ring.
  • valve 10 is shown connected to the neck C of a container or cylinder of gas of which only the upper part is shown.
  • the valve 10 comprises a valve body 12 having an upper main portion 14 and a lower base 16.
  • the two parts 14 and 16 of the body 12 are integral with each other and connected to each other by a weakening zone formed by a circumferential groove 18 formed in the outer surface of the body 12.
  • a vertical passage 22 of different diameters extends up and down through the valve body 12 and a horizontal passage 24 is formed in the laterally extending portion 20.
  • the base 16 is provided at its lower end with a cylindrical extension 47 of reduced diameter on which is mounted a sleeve 50 by a screw connection 51.
  • a sleeve 50 In the sleeve 50 is a set of check valve 52 having a piston 54 of which the upper end is closed and the lower end is open.
  • the piston 54 is provided at its upper end with a metal or synthetic sealing ring forced by a spring 56 surrounding the piston 54 in sealing engagement with a sealing surface formed at the lower end of the cylindrical extension 47 and surrounding the lower end of the longitudinal passage 22.
  • Between its upper closed end and its lower open end the piston 54 is provided with a plurality of radial holes 59 connecting the outside of the piston 54 with the inside thereof.
  • the sleeve 50 has at its lower end an internal thread 50-1 for connecting a dip tube (not shown).
  • check valve assembly 52 mounted at the free end of the base 16 is within the cylinder if the valve 10 is connected to the neck of the cylinder.
  • the gas can flow through the sleeve 50, the piston 54 and the radial openings 59 of the piston 54, in the lower part of the vertical passage 22, and then through the valve main 28 open and radial holes 36A formed in the annular element 36 and in the lateral passage 24 in the withdrawal mode, or in the opposite direction in filling mode.
  • an outer clamping ring 62 surrounds the base 16 of the valve body 12 above the upper surface of the neck C of the cylinder.
  • This ring 62 is in screwed engagement with the base 16.
  • the ring 62 is tightened by the application of a predetermined torque to the ring downwards against the upper surface of the neck C of the cylinder in order to maintain the integrity and the sealing of the threaded engagement between the base 16 and the neck C of the cylinder in the case of a lateral or axial violent impact exerted on the part of the valve 10 located outside the cylinder.
  • the base 16 has a first conical thread 16-1 by which the base 16 is screwed sealingly into a corresponding conical thread of the opening of the neck C of the cylinder.
  • the base 16 has a second cylindrical thread 16-2 which is above the first conical thread 16-1 between the first thread 16-1 and the main part 14 of the body 12 and below the weakening groove. 18.
  • the second thread 16-2 has a base diameter that is a little larger than the maximum outer diameter of the first thread 16-1 and the second thread 16-2 has a finer pitch than the first thread 16-1 but in the same sense as this one.
  • the ring 62 is provided according to the embodiment shown a first upper portion 62-1 provided with an internal thread 62-2 and a second lower portion 62-3 devoid of an internal thread and having a surface lower bearing 62-4 substantially radial engaging the upper surface of the neck C of the cylinder when the ring 62 is clamped against the neck C of the cylinder.
  • the clamping ring 62 is provided with one or more passages 62-5 passing through the thickness of the ring 62. This or these passages 62-5 make it possible to detect any leakage along the threads of the neck C of the cylinder and the If several passages 62-5 are provided, they may be spaced apart from each other in the circumferential direction.
  • the ring 62 can be tightened by means of a tool (not shown) that can engage either of these passages 62-5.
  • the passages 62-5 open into an inner circumferential groove 62-6 located between the upper portion 62-1 and the lower portion 62-3.
  • the passages 62-5 may be radial holes located between the two opposite ends of the ring 62, or radial grooves (not shown) formed in the lower surface of the ring 62.
  • the inner diameter of the lower portion 62-3 of the clamping ring 62 is only slightly larger than the outermost diameter of the tapered thread 16-1 and substantially equal thereto. It is sufficient that the inner diameter of the lower portion 62-3 of the clamping ring 62 is a little larger than the maximum outer diameter of the conical thread 16-1 to allow axial displacement of the ring 62 on the base 16 for mounting and disassembling the valve 10.
  • the internal minimum diameter of the thread 62-2 of the ring 62 is a little larger than the maximum outside diameter of the conical thread 16-1.
  • the clamping ring 62 may be used in a valve 10 with or without the active valve 52. Instead of the active valve 52 a non-active valve may be provided, as described above.
  • the presence of the clamping ring 62 preventing leakage by the threads around the base 16 is very advantageous in combination with the use of the non-active or non-active check valve 52 because the advantage obtained by the check valve 52 would be at least partially destroyed if after cutting the valve body 12 the contents of the cylinder would be prevented from escaping through the normal flow passage 22 of the base 16 but a leak would nevertheless be possible around the base 16 by the threads of the base 16 and the neck C of the cylinder.
  • the construction of the main primary valve 26 and the construction of the check valve 52 are not essential and instead of the particular constructions described above and represented in the figure for the valve 26 and the valve 52, any other mode of execution can be provided for the valve 26 and also for the valve 52.
  • the clamping ring 62 is placed around the base 16 and screwed on the second thread 16-2 until it is in an axial position (indicated by dashed lines at the top of the ring 62 in the single figure) relative to the base 16 in which it does not prevent the application of a torque to the base 16 for connecting the valve 10 to the cylinder, and after screwing and tightened the base 16 of the valve 10 in the threaded hole of the neck C of the cylinder by the application of a predetermined tightening torque the ring 62 is pressed against the neck of the cylinder by applying a predetermined torque to the ring 62.

Abstract

The valve has a valve body with a threaded conical nozzle having an outer screw thread provided between another screw thread and a main body part. A clamping ring (62) having an inner threading is screwed on the former thread. The ring is clamped against the neck of a container using a preset torque to maintain sealing engagement between the nozzle and the neck of the container when a violent impact is applied to the body. Independent claims are also included for the following: (A) a method for connecting a valve to a gas, liquefied or other fluid container (B) usage of a valve like a filling valve of a gas, or liquefied gas, or other fluid container.

Description

La présente invention se rapporte à un robinet pour récipient de gaz, ou de gaz liquéfié, ou autre fluide, comportant un corps de robinet ayant une partie de corps principale et une embase pourvue d'un premier filet externe pour raccordement du robinet au col d'un récipient de gaz, ou de gaz liquéfié, ou autre fluide, l'embase du corps de robinet étant pourvue d'un second filet externe se trouvant entre le premier filet et la partie principale du corps, et une bague pourvue d'un filetage interne vissé sur le second filet, cette bague ayant une extrémité inférieure pour engager directement le col du récipient et une extrémité supérieure à l'autre côté de la bague. Un robinet de ce type est divulgué dans le document FR-A-2 602 303 . La bague de ce document est une bague d'étanchéité pourvue de joints d'étanchéité pour engager le col du récipient et le corps du robinet. Le document DE-C-922 265 divulgue un robinet avec une bague vissée sur le corps du robinet pour comprimer des joints d'étanchéité.The present invention relates to a valve for a gas container, or liquefied gas, or other fluid, having a valve body having a main body portion and a base provided with a first external thread for connecting the faucet to the d-neck. a container of gas, or liquefied gas, or other fluid, the base of the valve body being provided with a second external thread located between the first thread and the main part of the body, and a ring provided with a internal thread screwed on the second thread, this ring having a lower end for directly engaging the neck of the container and an upper end to the other side of the ring. A tap of this type is disclosed in the document FR-A-2,602,303 . The ring of this document is a sealing ring provided with seals for engaging the container neck and the valve body. The document DE-C-922 265 discloses a valve with a ring screwed on the body of the valve to compress seals.

Dans la technique antérieure le robinet d'un récipient de gaz est normalement pourvu d'une embase ayant un filet externe conique qui est vissé par l'application d'un couple prédéterminé dans une ouverture filetée d'un récipient de gaz. Le filet conique assure le raccordement étanche entre l'embase du robinet et le récipient. Si un choc violent latéral ou axial est appliqué au robinet l'embase peut se déformer causant des fuites à travers les filets entre l'embase et l'ouverture du col du récipient. Une telle fuite doit être évitée surtout pour les gaz très oxydants, réactifs, corrosifs et toxiques utilisés par exemple pour la fabrication de micro-chips dans l'industrie des semiconducteurs. Les robinets classiques pour récipient de gaz sont pourvus d'une vanne simple primaire (étanchéité externe simple) située dans le corps du robinet en dehors du récipient. Si un choc violent est appliqué à ce robinet classique, par exemple en cas d'accident d'un véhicule dans lequel le récipient est monté, la partie du corps de robinet contenant la vanne primaire peut être sectionnée et le gaz peut s'échapper librement par le passage de gaz de l'embase qui reste engagée dans le col du récipient et, éventuellement, aussi entre les filets de l'embase et du col du récipient, comme cité ci-avant. Pour remédier à ce désavantage il a été déjà proposé de prévoir un clapet de retenue en bas de l'embase et qui se trouve donc à l'intérieur du récipient lorsque le robinet est raccordé au récipient. Ce clapet peut être un clapet non-actif qui se ferme uniquement par la pression du fluide contenu dans le récipient si la partie principale du corps de robinet est sectionnée. On connaît aussi des clapets actifs qui se ferment systématiquement avant chaque fermeture de la vanne primaire et qui sont ouverts systématiquement après chaque ouverture de la vanne primaire. Les robinets pourvus d'un tel clapet et d'une vanne primaire sont des robinets à étanchéité double interne et externe comportant la vanne primaire en dehors du récipient et le clapet de retenue à l'intérieur de celui-ci. Cependant, ces clapets de retenue peuvent seulement empêcher la fuite du contenu du récipient par le passage d'écoulement normal de l'embase du corps du robinet restant engagée dans l'ouverture du col du récipient lorsque la partie principale du corps du robinet est sectionnée mais ces clapets ne peuvent pas empêcher la fuite par les filets de l'embase et du col du récipient en cas de déformation de l'embase résultant d'un choc violent appliqué au robinet.In the prior art the valve of a gas container is normally provided with a base having a conical external thread which is screwed by the application of a predetermined torque in a threaded opening of a gas container. The conical thread ensures the tight connection between the valve base and the container. If a lateral or axial violent impact is applied to the valve, the base can be deformed causing leaks through the threads between the base and the opening of the neck of the container. Such a leak must be avoided especially for highly oxidizing, reactive, corrosive and toxic gases used for example for the manufacture of micro-chips in the semiconductor industry. Conventional valves for gas containers are provided with a single primary valve (single external seal) located in the valve body outside the container. If a violent shock is applied to this faucet conventional, for example in case of accident of a vehicle in which the container is mounted, the part of the valve body containing the primary valve can be cut off and the gas can escape freely through the gas passage of the base which remains engaged in the neck of the container and, possibly, also between the threads of the base and the neck of the container, as cited above. To overcome this disadvantage it has already been proposed to provide a check valve at the bottom of the base and which is therefore inside the container when the valve is connected to the container. This valve may be a non-active valve which closes only by the pressure of the fluid contained in the container if the main part of the valve body is cut. Active valves are also known which close systematically before each closing of the primary valve and which are systematically open after each opening of the primary valve. Valves provided with such a valve and a primary valve are internal and external double seal valves having the primary valve outside the vessel and the check valve therein. However, these check valves can only prevent leakage of the contents of the container through the normal flow passage of the remaining valve body hub engaged in the opening of the container neck when the main body portion of the valve is cut off. but these valves can not prevent leakage through the threads of the base and the neck of the container in case of deformation of the base resulting from a violent impact applied to the valve.

Pour remédier à ce désavantage le but de la présente invention est de fournir un robinet perfectionné pour récipient de gaz, de gaz liquéfié, ou autre fluide, empêchant la fuite du contenu du récipient à travers les filets de l'embase et du col du récipient après l'application d'un choc violent au robinet.To overcome this disadvantage, the object of the present invention is to provide an improved valve for a container of gas, liquefied gas, or other fluid, preventing leakage of the contents of the container through the threads of the base and the neck of the container. after applying a violent shock to the faucet.

Selon l'invention, pour résoudre cet objet, le robinet du type cité ci-avant est caractérisé en ce que la bague est une bague de serrage adaptée en vue d'être serrée avec un couple défini contre le col du récipient en vue de maintenir l'intégrité et l'étanchéité de l'engagement vissé entre l'embase et le col du récipient en cas d'un choc violent appliqué au corps du robinet, et en ce que la bague est une bague de serrage adaptée en vue d'être serrée avec un couple défini contre le col du récipient en vue de maintenir l'intégrité et l'étanchéité de l'engagement vissé entre l'embase et le col du récipient en cas d'un choc violent appliqué au corps du robinet, et en ce qu'une rainure d'affaiblissement est formée dans le corps du robinet entre l'embase et la partie principale, cette rainure d'affaiblissement étant disposée de sorte qu'à l'état serré de la bague, la rainure soit située en haut de la bague juste au-dessus du niveau de l'extrémité supérieure de la bague.According to the invention, to solve this object, the valve of the type mentioned above is characterized in that the ring is a clamping ring adapted to be clamped with a defined torque against the neck of the container to maintain the integrity and sealing of the engagement screwed between the base and the container neck in the event of a violent impact applied to the body of the valve, and in that the ring is a clamping ring adapted for the purpose of being tightened with a defined torque against the neck of the container in order to maintain the integrity and the seal of the engagement screwed between the base and the neck of the container in the event of a violent impact applied to the body of the tap, and in that a weakening groove is formed in the body of the valve between the base and the main part, this weakening groove being arranged so that in the tight state of the ring, the groove is located in top of the ring just above the level of the upper end the ring.

Par la bague de serrage serrée fortement contre le col du récipient le risque de déformation de l'embase en cas d'un choc violent appliqué au corps du robinet est fortement réduit. Une partie de l'énergie du choc latéral est diffusée sur le col du récipient en vue de protéger les filets et d'empêcher l'embase de se déformer ou se dégrader par arrachement des filets. L'étanchéité des filets est donc assurée et le contenu du récipient est confiné dans celui-ci. La rainure d'affaiblissement formée entre l'embase et la partie principale du corps de robinet et se trouvant, à l'état serré de la bague, juste au-dessus du niveau de l'extrémité supérieure de la bague limite l'effort maximal qui peut être appliqué à l'embase dans le cas d'un choc violent exercé au robinet.By the clamping ring tight against the neck of the container the risk of deformation of the base in the event of a violent shock applied to the valve body is greatly reduced. Part of the energy of the lateral impact is diffused on the neck of the container in order to protect the threads and to prevent the base from being deformed or degraded by tearing of the threads. The tightness of the nets is therefore ensured and the contents of the container is confined in it. The weakening groove formed between the base and the main part of the valve body and being, in the tightened condition of the ring, just above the level of the upper end of the ring limits the maximum effort which can be applied to the base in the event of a violent impact exerted on the tap.

D'autres caractéristiques avantageuses de l'invention sont citées dans les revendications dépendantes 2 à 11.Other advantageous features of the invention are cited in the dependent claims 2 to 11.

L'invention sera maintenant expliquée en plus grand détail en référence aux dessins annexés, dans lesquels la figure unique montre en coupe longitudinale le robinet selon l'invention raccordé à une bouteille de gaz.The invention will now be explained in greater detail with reference to the accompanying drawings, in which the single figure shows in longitudinal section the valve according to the invention connected to a gas cylinder.

Sur la figure 1 un robinet 10 est représenté raccordé au col C d'un récipient ou cylindre de gaz dont seulement la partie supérieure est représentée. Le robinet 10 comporte un corps de robinet 12 ayant une partie principale supérieure 14 et une embase inférieure 16. Les deux parties 14 et 16 du corps 12 sont solidaires l'une de l'autre et raccordées l'une à l'autre par une zone d'affaiblissement formée par une rainure circonférentielle 18 pratiquée dans la surface externe du corps 12.In Figure 1 a valve 10 is shown connected to the neck C of a container or cylinder of gas of which only the upper part is shown. The valve 10 comprises a valve body 12 having an upper main portion 14 and a lower base 16. The two parts 14 and 16 of the body 12 are integral with each other and connected to each other by a weakening zone formed by a circumferential groove 18 formed in the outer surface of the body 12.

Le corps 12 est aussi pourvu d'une partie 20 s'étendant latéralement pour raccordement du robinet 10 à un moyen de remplissage (non-représenté) du cylindre ou un dispositif de consommation (non-représenté) du gaz soutiré du cylindre.The body 12 is also provided with a laterally extending portion 20 for connection of the valve 10 to a filling means (not shown) of the cylinder or a consumption device (not shown) of the gas withdrawn from the cylinder.

Un passage vertical 22 à différents diamètres s'étend de haut en bas à travers le corps de robinet 12 et un passage horizontal 24 est pratiqué dans la partie 20 s'étendant latéralement.A vertical passage 22 of different diameters extends up and down through the valve body 12 and a horizontal passage 24 is formed in the laterally extending portion 20.

Dans le passage vertical 22 et plus précisément dans la partie de corps principale 14 se trouve un ensemble de vanne principale 26 de construction habituelle mais pourvu d'une vanne à siège inversé 28, c'est-à-dire une vanne à ouvrir par mouvement axial de la tige de commande 30 vers le bas causant l'éloignement d'une bague d'étanchéité 32 en métal ou en matière synthétique portée par la tige de commande 30 vers le bas d'un siège fixe 34. Le siège 34 est formé sur un élément tubulaire 36 qui entoure la tige de commande 30 et qui est reçu dans le passage vertical 22 dans la partie de corps principal 14. Un ensemble d'étanchéité 33-1 à 33-6 est disposé dans l'élément tubulaire 36 autour de la tige de commande 30 pour empêcher une fuite de gaz le long de la tige de commande 30. L'élément tubulaire 36 est maintenu en position par une bague d'étoupe 38 vissée dans le passage longitudinal 22 en haut du corps du robinet 12 et un élément de retenue annulaire 40 est vissé sur un filetage externe du corps du robinet 12 et retient la bague d'étoupe 38. La tige de commande 30 comporte une partie inférieure 30A et une partie supérieure 30B raccordées ensemble par un moyen de couplage 44. La partie supérieure 30B de la tige de commande 30 comporte un filetage externe vissé dans un filetage interne de la bague d'étoupe 38. La partie inférieure 30A de la tige de commande 30 est pourvue de la bague d'étanchéité 32 mais il est noté que la bague d'étanchéité pourrait être portée selon un autre mode d'exécution par l'élément tubulaire 36 et le siège d'étanchéité pourrait être formé sur la partie inférieure 30A de la tige de commande 30. La partie inférieure 30A de la tige de commande est pourvue d'un prolongement 46 qui s'étend vers le bas dans la partie du passage longitudinal 22 formée dans l'embase 16 pour un but qui sera encore expliqué en plus grand détail ci-après. Un volant de commande 58 est fixé à la partie supérieure 30A de la tige de commande.In the vertical passage 22 and more specifically in the main body portion 14 there is a main valve assembly 26 of usual construction but provided with an inverted seat valve 28, i.e., a motion-open valve. axial direction of the control rod 30 downwards causing the removal of a sealing ring 32 made of metal or plastic carried by the control rod 30 downwards from a fixed seat 34. The seat 34 is formed on a tubular member 36 which surrounds the control rod 30 and which is received in the vertical passage 22 in the main body portion 14. A sealing assembly 33-1 to 33-6 is disposed in the tubular member 36 around of the control rod 30 to prevent a leakage of gas along the control rod 30. The tubular member 36 is held in position by a gland ring 38 screwed into the longitudinal passage 22 at the top of the valve body 12 and an annular retainer 40 is screwed on an external thread of the body of the valve 12 and holds the packing ring 38. The control rod 30 has a lower portion 30A and an upper portion 30B connected together by a coupling means 44. The upper portion 30B of the control rod 30 has an external thread screwed into an internal thread of the gland ring 38. The lower part 30A of the control rod 30 is provided with the sealing ring 32 but it is noted that the sealing ring could be worn according to another embodiment by the tubular member 36 and the sealing seat could be formed on the lower portion 30A of the control rod 30. The portion The lower end 30A of the control rod is provided with an extension 46 which extends downwards in the portion of the longitudinal passage 22 formed in the base 16 for a purpose which will be explained in greater detail hereinafter. A control wheel 58 is attached to the upper portion 30A of the control rod.

L'embase 16 est pourvue à son extrémité inférieure d'un prolongement cylindrique 47 à diamètre réduit sur lequel est monté un manchon 50 par un raccord vissé 51. Dans le manchon 50 se trouve un ensemble de clapet de retenue 52 comportant un piston 54 dont l'extrémité supérieure est fermée et l'extrémité inférieure est ouverte. Le piston 54 est pourvu à son extrémité supérieure d'une bague d'étanchéité métallique ou en matière synthétique forcée par un ressort 56 entourant le piston 54 en engagement étanche avec une surface d'étanchéité formée à l'extrémité inférieure du prolongement cylindrique 47 et entourant l'extrémité inférieure du passage longitudinal 22. Entre son extrémité supérieure fermée et son extrémité inférieure ouverte le piston 54 est pourvu de plusieurs trous radiaux 59 reliant l'extérieur du piston 54 avec l'intérieur de celui-ci. Le manchon 50 a à son extrémité inférieure un filet interne 50-1 pour le raccordement d'un tube plongeur (pas représenté).The base 16 is provided at its lower end with a cylindrical extension 47 of reduced diameter on which is mounted a sleeve 50 by a screw connection 51. In the sleeve 50 is a set of check valve 52 having a piston 54 of which the upper end is closed and the lower end is open. The piston 54 is provided at its upper end with a metal or synthetic sealing ring forced by a spring 56 surrounding the piston 54 in sealing engagement with a sealing surface formed at the lower end of the cylindrical extension 47 and surrounding the lower end of the longitudinal passage 22. Between its upper closed end and its lower open end the piston 54 is provided with a plurality of radial holes 59 connecting the outside of the piston 54 with the inside thereof. The sleeve 50 has at its lower end an internal thread 50-1 for connecting a dip tube (not shown).

On peut voir que l'ensemble de clapet de retenue 52 monté à l'extrémité libre de l'embase 16 se trouve à l'intérieur du cylindre si le robinet 10 est raccordé au col du cylindre.It can be seen that the check valve assembly 52 mounted at the free end of the base 16 is within the cylinder if the valve 10 is connected to the neck of the cylinder.

Pour ouvrir le robinet, le volant de commande 58 raccordé à la partie supérieure 30B de la tige de commande 30 est tourné dans une direction pour déplacer la tige de commande 30 vers le bas et éloigner la bague d'étanchéité 32 de la vanne primaire principale 28 vers le bas de son siège fixe 34. Après l'ouverture de la vanne principale 28 la partie prolongée 46 de la partie inférieure 30B de la tige de commande 30 vient contacter le piston 54 de l'ensemble de clapet de retenue 52 en vue de la dégager vers le bas de son siège. Si la vanne primaire 28 et le clapet de retenue 52 sont ouverts le gaz peut s'écouler par le manchon 50, le piston 54 et les ouvertures radiales 59 du piston 54, dans la partie inférieure du passage vertical 22, et ensuite par la vanne principale 28 ouverte et par des trous radiaux 36A pratiqués dans l'élément annulaire 36 et dans le passage latéral 24 en mode de soutirage, ou en direction opposée en mode de remplissage.To open the valve, the control wheel 58 connected to the upper portion 30B of the control rod 30 is rotated in one direction to move the control rod 30 downwardly and away the seal ring 32 from the primary primary valve. 28 down from its fixed seat 34. After opening the main valve 28 extended portion 46 of the lower portion 30B of the control rod 30 contacts the piston 54 of the check valve assembly 52 to disengage it from the bottom of its seat. If the primary valve 28 and the check valve 52 are open, the gas can flow through the sleeve 50, the piston 54 and the radial openings 59 of the piston 54, in the lower part of the vertical passage 22, and then through the valve main 28 open and radial holes 36A formed in the annular element 36 and in the lateral passage 24 in the withdrawal mode, or in the opposite direction in filling mode.

Lorsque le volant 58 est tourné dans une direction opposée pour fermer le robinet 10 le prolongement 46 de la tige 30 est dégagé d'abord du clapet de retenue 52 permettant sa fermeture sous l'effet de son ressort 56 et ensuite la vanne principale 28 est également fermée.When the flywheel 58 is turned in an opposite direction to close the valve 10 the extension 46 of the rod 30 is released first of the check valve 52 allowing its closure under the effect of its spring 56 and then the main valve 28 is also closed.

Selon la présente invention, une bague de serrage externe 62 entoure l'embase 16 du corps de robinet 12 au-dessus de la surface supérieure du col C du cylindre. Cette bague 62 est en engagement vissé avec l'embase 16. La bague 62 est serrée par l'application d'un couple prédéterminé à la bague vers le bas contre la surface supérieure du col C du cylindre en vue de maintenir l'intégrité et l'étanchéité de l'engagement fileté entre l'embase 16 et le col C du cylindre dans le cas d'un choc violent latéral ou axial exercé à la partie du robinet 10 se trouvant en dehors du cylindre.According to the present invention, an outer clamping ring 62 surrounds the base 16 of the valve body 12 above the upper surface of the neck C of the cylinder. This ring 62 is in screwed engagement with the base 16. The ring 62 is tightened by the application of a predetermined torque to the ring downwards against the upper surface of the neck C of the cylinder in order to maintain the integrity and the sealing of the threaded engagement between the base 16 and the neck C of the cylinder in the case of a lateral or axial violent impact exerted on the part of the valve 10 located outside the cylinder.

En particulier, l'embase 16 a un premier filet conique 16-1 par lequel l'embase 16 est vissée de façon étanche dans un filet conique correspondant de l'ouverture du col C du cylindre. L'embase 16 a un second filet cylindrique 16-2 qui se trouve au-dessus du premier filet conique 16-1 entre le premier filet 16-1 et la partie principale 14 du corps 12 et en-dessous de la rainure d'affaiblissement 18. Le second filet 16-2 a un diamètre de base qui est un peu plus grand que le diamètre externe maximal du premier filet conique 16-1 et le second filet 16-2 a un pas plus fin que le premier filet 16-1 mais du même sens que celui-ci.In particular, the base 16 has a first conical thread 16-1 by which the base 16 is screwed sealingly into a corresponding conical thread of the opening of the neck C of the cylinder. The base 16 has a second cylindrical thread 16-2 which is above the first conical thread 16-1 between the first thread 16-1 and the main part 14 of the body 12 and below the weakening groove. 18. The second thread 16-2 has a base diameter that is a little larger than the maximum outer diameter of the first thread 16-1 and the second thread 16-2 has a finer pitch than the first thread 16-1 but in the same sense as this one.

La bague 62 est pourvue selon le mode d'exécution représenté d'une première partie supérieure 62-1 pourvue d'un filetage interne 62-2 et d'une seconde partie inférieure 62-3 dépourvue d'un filetage interne et ayant une surface d'appui inférieure 62-4 sensiblement radiale engageant la surface supérieure du col C du cylindre lorsque la bague 62 est serrée contre le col C du cylindre. La bague de serrage 62 est pourvue d'un ou plusieurs passages 62-5 traversant l'épaisseur de la bague 62. Ce ou ces passages 62-5 permettent de détecter toute fuite éventuelle le long des filets du col C du cylindre et de l'embase 16. Si plusieurs passages 62-5 sont prévus, ils peuvent être espacés l'un de l'autre en direction circonférentielle. La bague 62 peut être serrée au moyen d'un outil (non-représenté) pouvant engager l'un ou l'autre de ces passages 62-5. Les passages 62-5 débouchent dans une rainure circonférentielle interne 62-6 située entre la partie supérieure 62-1 et la partie inférieure 62-3. Cependant, pour le serrage de la bague 62 elle peut aussi avoir une forme externe hexagonale ou toute autre forme appropriée. Les passages 62-5 peuvent être des trous radiaux situés entre les deux extrémités opposées de la bague 62, ou bien des rainures radiales (non-représentées) formées dans la surface inférieure de la bague 62.The ring 62 is provided according to the embodiment shown a first upper portion 62-1 provided with an internal thread 62-2 and a second lower portion 62-3 devoid of an internal thread and having a surface lower bearing 62-4 substantially radial engaging the upper surface of the neck C of the cylinder when the ring 62 is clamped against the neck C of the cylinder. The clamping ring 62 is provided with one or more passages 62-5 passing through the thickness of the ring 62. This or these passages 62-5 make it possible to detect any leakage along the threads of the neck C of the cylinder and the If several passages 62-5 are provided, they may be spaced apart from each other in the circumferential direction. The ring 62 can be tightened by means of a tool (not shown) that can engage either of these passages 62-5. The passages 62-5 open into an inner circumferential groove 62-6 located between the upper portion 62-1 and the lower portion 62-3. However, for the tightening of the ring 62 it may also have a hexagonal outer shape or any other suitable form. The passages 62-5 may be radial holes located between the two opposite ends of the ring 62, or radial grooves (not shown) formed in the lower surface of the ring 62.

Il est entendu que le diamètre interne de la partie inférieure 62-3 de la bague de serrage 62 n'est que légèrement plus grand que le diamètre maximal externe du filet conique 16-1 et sensiblement égal à celui-ci. Il suffit que le diamètre interne de la partie inférieure 62-3 de la bague de serrage 62 soit un peu plus grand que le diamètre maximal externe du filet conique 16-1 afin de permettre un déplacement axial de la bague 62 sur l'embase 16 pour le montage et le démontage du robinet 10. Le diamètre minimal interne du filetage 62-2 de la bague 62 est un peu plus grand que le diamètre maximal externe du filet conique 16-1. La bague 62 est donc bien cintrée autour de l'embase 16 et serrée fortement contre le col C du cylindre en vue de protéger l'embase 16 et empêcher sa déformation ou l'arrachement des filets en cas d'un choc latéral violent appliqué au robinet 10 pouvant causer son pliage ou le sectionner à l'endroit de la zone d'affaiblissement (rainure 18).It is understood that the inner diameter of the lower portion 62-3 of the clamping ring 62 is only slightly larger than the outermost diameter of the tapered thread 16-1 and substantially equal thereto. It is sufficient that the inner diameter of the lower portion 62-3 of the clamping ring 62 is a little larger than the maximum outer diameter of the conical thread 16-1 to allow axial displacement of the ring 62 on the base 16 for mounting and disassembling the valve 10. The internal minimum diameter of the thread 62-2 of the ring 62 is a little larger than the maximum outside diameter of the conical thread 16-1. The ring 62 is well bent around the base 16 and tightly pressed against the neck C of the cylinder in order to protect the base 16 and prevent deformation or tearing of the threads in the event of a violent side impact applied to the valve 10 can cause its folding or severing at the point of the weakening zone (groove 18).

La bague de serrage 62 peut être utilisée dans un robinet 10 avec ou sans le clapet actif 52. Au lieu du clapet actif 52 un clapet non-actif peut être prévu, tel que décrit ci-avant.The clamping ring 62 may be used in a valve 10 with or without the active valve 52. Instead of the active valve 52 a non-active valve may be provided, as described above.

La présence de la bague de serrage 62 empêchant la fuite par les filets autour de l'embase 16 est très avantageuse en combinaison avec l'utilisation du clapet de retenue 52 actif ou non-actif parce que l'avantage obtenu par le clapet de retenue 52 serait au moins partiellement anéanti si après sectionnement du corps de robinet 12 le contenu du cylindre serait empêché de s'échapper par le passage d'écoulement normal 22 de l'embase 16 mais qu'une fuite serait néanmoins possible autour de l'embase 16 par les filets de l'embase 16 et du col C du cylindre.The presence of the clamping ring 62 preventing leakage by the threads around the base 16 is very advantageous in combination with the use of the non-active or non-active check valve 52 because the advantage obtained by the check valve 52 would be at least partially destroyed if after cutting the valve body 12 the contents of the cylinder would be prevented from escaping through the normal flow passage 22 of the base 16 but a leak would nevertheless be possible around the base 16 by the threads of the base 16 and the neck C of the cylinder.

La construction de la vanne primaire principale 26 et la construction du clapet de retenue 52 ne sont pas essentielles et au lieu des constructions particulières décrites précédemment et représentées dans la figure pour la vanne 26 et le clapet 52, n'importe quel autre mode d'exécution peut être prévu pour la vanne 26 et aussi pour le clapet 52.The construction of the main primary valve 26 and the construction of the check valve 52 are not essential and instead of the particular constructions described above and represented in the figure for the valve 26 and the valve 52, any other mode of execution can be provided for the valve 26 and also for the valve 52.

Pour raccorder le robinet 10 au cylindre la bague de serrage 62 est placée autour de l'embase 16 et vissée sur le second filet 16-2 jusqu'à ce qu'elle se trouve dans une position axiale (indiquée par des traits pointillés en haut de la bague 62 dans la figure unique) par rapport à l'embase 16 dans laquelle elle n'empêche pas l'application d'un couple à l'embase 16 pour le raccordement du robinet 10 au cylindre, et après avoir vissé et serré l'embase 16 du robinet 10 dans le trou fileté du col C du cylindre par l'application d'un couple de serrage prédéterminé la bague 62 est serrée contre le col du cylindre par application d'un couple prédéterminé à la bague 62.To connect the valve 10 to the cylinder the clamping ring 62 is placed around the base 16 and screwed on the second thread 16-2 until it is in an axial position (indicated by dashed lines at the top of the ring 62 in the single figure) relative to the base 16 in which it does not prevent the application of a torque to the base 16 for connecting the valve 10 to the cylinder, and after screwing and tightened the base 16 of the valve 10 in the threaded hole of the neck C of the cylinder by the application of a predetermined tightening torque the ring 62 is pressed against the neck of the cylinder by applying a predetermined torque to the ring 62.

L'invention n'est pas limitée au mode d'exécution particulier qui vient d'être décrit ci-avant en détail mais en contraire, beaucoup de modifications et de variations peuvent y être apportées par le spécialiste sans pour autant quitter la portée des revendications suivantes.The invention is not limited to the particular embodiment which has just been described above in detail but in contrast, many modifications and variations can be made by the specialist without departing from the scope of the claims. following.

Claims (11)

  1. Tap for gas, or liquefied gas, or other fluid container, comprising a tap body (12) having a main body portion (14) and a base section (16) provided with a first outer thread (16-1) for connection of the tap to the neck of a gas, or liquefied gas, or other fluid container (C), the base section (16) of the tap body (12) being provided with a second external thread (16-2) located between the first thread (16-1) and the main body portion (14), and a ring provided with an internal thread (62-2) threadedly engaged with the second thread (16-2), said ring (62) having a lower end for directly engaging the neck of the container (C) and an upper end at the other side of the ring (62), said ring being a locking ring (62) adapted to be tightened by the application of a predetermined couple against the neck of the container (C) so as to maintain the integrity and the tightness of the threaded engagement between the base section (16) and the neck of the container (C) in case of the application of a strong impact on the body (12) of the tap, and characterized in that a weakening groove (18) is formed in the body (12) of the tap between the base section (16) and the main body portion (14), said weakening groove (18) being disposed such that, when the ring (62) is tightened, the groove (18) is located above the ring (62) just above the level of the upper end of the ring (62).
  2. Tap according to claim 1, characterized in that the second thread (16-2) has a finer pitch than the first thread (16-1), but in the same direction as the first thread.
  3. Tap according to claim 1 or 2, characterized in that the second thread (16-2) is a cylindrical thread.
  4. Tap according to any one of claims 1 to 3, characterized in that the first thread (16-1) is a conical thread and the second thread (16-2) is provided at the side of the large diameter end of the conical thread (16-1).
  5. Tap according to any one of claims 1 to 4, characterized in that the base diameter of the second thread (16-2) is slightly larger than the maximum external diameter of the first thread (16-1).
  6. Tap according to any one of claims 1 to 5, characterized in that the ring (62) is provided with a first portion (62-1) provided with the internal thread (16-2) whose minimum internal diameter is slightly larger than the maximum external diameter of the first thread (16-1), and with a second portion (62-3) without internal thread and having an engagement surface (62-4) for contacting the neck of the container, said second portion (62-3) having an internal diameter being slightly larger than the maximum external diameter of the first thread (16-1).
  7. Tap according to any one of claims 1 to 6, characterized in that the locking ring (62) has at least one passage (62-5) extending through the thickness of the ring (62) for the detection of leakage between the threads of the base portion (16) and the neck of the container (C).
  8. Tap according to any one of claims 1 to 7, characterized in that the external circumferential surface of the ring (62) is provided with a shape, for example hexagonal, for tightening the ring (62) by means of a tightening tool.
  9. Tap according to any one of claims 1 to 8, characterized in that the tap (10) is of the type comprising a main valve assembly (62) disposed in the main body portion (14) of the tap.
  10. Tap according to claim 9, characterized in that the tap (10) is of the type comprising a check valve assembly (52) mounted at the free end of the base section so as to be located within the interior of a container (C) when the tap (10) is fixed to the container (C).
  11. Tap according to claim 10, characterized in that the main valve assembly (26) is an inversed seat valve and the check valve assembly (52) is configured so as to be opened by an extension portion (46) of an actuating stem (30) of the main valve assembly (26) when the actuating stem (30) is actuated for opening the main valve (26).
EP20040101075 2004-03-16 2004-03-16 Valve with counternut Expired - Lifetime EP1577604B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP20040101075 EP1577604B1 (en) 2004-03-16 2004-03-16 Valve with counternut
AT04101075T ATE383542T1 (en) 2004-03-16 2004-03-16 COCK WITH LOCK NUT
DE200460011179 DE602004011179D1 (en) 2004-03-16 2004-03-16 Cock with locknut
JP2005067729A JP5084107B2 (en) 2004-03-16 2005-03-10 Tap with a clamp ring at the proximal end, method for attaching such a tap and container with such a tap
US11/079,353 US7418974B2 (en) 2004-03-16 2005-03-14 Tap having a clamping ring on the base end portion
CNB2005100545998A CN100462600C (en) 2004-03-16 2005-03-16 Valve with counternut
KR1020050021886A KR20060043705A (en) 2004-03-16 2005-03-16 Tap for gas or liquid cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040101075 EP1577604B1 (en) 2004-03-16 2004-03-16 Valve with counternut

Publications (2)

Publication Number Publication Date
EP1577604A1 EP1577604A1 (en) 2005-09-21
EP1577604B1 true EP1577604B1 (en) 2008-01-09

Family

ID=34833755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040101075 Expired - Lifetime EP1577604B1 (en) 2004-03-16 2004-03-16 Valve with counternut

Country Status (5)

Country Link
US (1) US7418974B2 (en)
EP (1) EP1577604B1 (en)
JP (1) JP5084107B2 (en)
AT (1) ATE383542T1 (en)
DE (1) DE602004011179D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010106902A (en) * 2008-10-29 2010-05-13 Neriki:Kk Vessel valve and its attaching method
CN102459989A (en) * 2009-06-08 2012-05-16 C.T.S.公司 Collar for high-pressure bottles and process for its construction
US9506577B2 (en) * 2013-04-30 2016-11-29 Tilden C. Harris Safety valve device
JP2016205418A (en) * 2015-04-15 2016-12-08 株式会社ネリキ Check valve mechanism and one-way regulation valve device
JP2017150627A (en) * 2016-02-26 2017-08-31 本田技研工業株式会社 Valve mechanism for high pressure tank and valve device provided with the same
GB201711670D0 (en) * 2017-07-20 2017-09-06 Qinov8 Uk Safety valve
CN114517888A (en) * 2022-03-09 2022-05-20 浙江工业大学 Station hydrogen storage cylinder and gas cylinder group based on self-reinforcing theory

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Publication number Priority date Publication date Assignee Title
US1136606A (en) * 1914-05-29 1915-04-20 Melvin W Loyd Safety-valve.
DE922265C (en) * 1953-06-25 1955-01-13 Jean Alexandre Tight connection piece for pressurized fluid containers
DE1094055B (en) * 1959-01-08 1960-12-01 Hans Kreidel Jun Direction-adjustable and lockable screw-in high pressure pipe connection
US3645286A (en) * 1969-05-29 1972-02-29 John Le Roy Follett Safety valve for liquid pressure cylinders
JPS5247778Y2 (en) * 1973-01-24 1977-10-29
US4077422A (en) * 1975-11-17 1978-03-07 Said Robie G. Brinkley, By Said Gerry D. Welton Flow control means for compressed gas cylinders
US4562852A (en) * 1984-08-20 1986-01-07 Britt Franklin J Safety valve
FR2602303A1 (en) * 1986-07-31 1988-02-05 Air Liquide "Double seal" valve for compressed and liquefied gas bottles
FR2729453B1 (en) * 1995-01-17 1997-04-18 Electricite De France DEVICE FOR SEALED CONNECTION OF A FLUID PIPING TO AN APPARATUS BODY
DE19522197A1 (en) * 1995-06-21 1997-01-02 Bartels & Rieger High-pressure container, in particular as a compressed gas bottle for breathing apparatus or diving equipment, with a control or shut-off valve that can be screwed into the bottle neck
LU88793A1 (en) * 1996-07-24 1998-01-24 Ceodeux Ultra Pure Equipment T Screw-in valve for a pressure vessel
DE60303258T2 (en) * 2003-03-28 2006-11-02 Luxembourg Patent Company S.A. Valve for a gas or liquid container
US7066193B2 (en) * 2003-04-24 2006-06-27 Aderholt Steven K Poppet shear protection apparatus and system

Also Published As

Publication number Publication date
JP2005265190A (en) 2005-09-29
EP1577604A1 (en) 2005-09-21
US20050205821A1 (en) 2005-09-22
ATE383542T1 (en) 2008-01-15
DE602004011179D1 (en) 2008-02-21
US7418974B2 (en) 2008-09-02
JP5084107B2 (en) 2012-11-28

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