EP1577604A1 - Valve with counternut - Google Patents

Valve with counternut Download PDF

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Publication number
EP1577604A1
EP1577604A1 EP20040101075 EP04101075A EP1577604A1 EP 1577604 A1 EP1577604 A1 EP 1577604A1 EP 20040101075 EP20040101075 EP 20040101075 EP 04101075 A EP04101075 A EP 04101075A EP 1577604 A1 EP1577604 A1 EP 1577604A1
Authority
EP
European Patent Office
Prior art keywords
valve
thread
container
base
neck
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.)
Granted
Application number
EP20040101075
Other languages
German (de)
French (fr)
Other versions
EP1577604B1 (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 DE200460011179 priority Critical patent/DE602004011179D1/en
Priority to AT04101075T priority patent/ATE383542T1/en
Priority to EP20040101075 priority patent/EP1577604B1/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

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/04Arrangement or mounting of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C1/00Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/12Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123Arrangements 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C3/00Vessels not under pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/068Special properties of materials for vessel walls
    • F17C2203/069Break point in the wall
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323Valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323Valves
    • F17C2205/0329Valves manually actuated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323Valves
    • F17C2205/0332Safety valves or pressure relief valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323Valves
    • F17C2205/0335Check-valves or non-return valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382Constructional details of valves, regulators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382Constructional details of valves, regulators
    • F17C2205/0385Constructional details of valves, regulators in blocks or units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388Arrangement of valves, regulators, filters
    • F17C2205/0391Arrangement of valves, regulators, filters inside the pressure vessel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388Arrangement of valves, regulators, filters
    • F17C2205/0394Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107Single phase
    • F17C2223/0123Single phase gaseous, e.g. CNG, GNC
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033Small pressure, e.g. for liquefied gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035High pressure (>10 bar)
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/01Improving mechanical properties or manufacturing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/03Dealing with losses
    • F17C2260/035Dealing with losses of fluid
    • F17C2260/036Avoiding leaks
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/04Reducing risks and environmental impact
    • F17C2260/042Reducing risk of explosion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/04Reducing risks and environmental impact
    • F17C2260/044Avoiding pollution or contamination
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/1624Destructible or deformable element controlled
    • Y10T137/1632Destructible element
    • Y10T137/1654Separable valve coupling or conduit
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/8593Systems
    • Y10T137/87917Flow path with serial valves and/or closures
    • Y10T137/88054Direct response normally closed valve limits direction of flow

Definitions

  • the present invention relates to a tap for container of gas, or liquefied gas, or other fluid, having a valve body having a body portion head and a base with a first external thread for connecting the tap to the neck of a gas container, or of liquefied gas, or other fluid.
  • the invention also relates to a method of connecting a faucet to a container of gas, or liquefied gas, or other fluid, as well as the use of the tap as a tap of filling / withdrawing a container of gas, liquefied gas, or other fluid.
  • the tap of a container of gas is normally provided with a base having a thread conical outer which is screwed by the application of a couple predetermined in a threaded opening of a container of gas.
  • the conical thread ensures the tight connection between the base of the faucet and the container. If a violent shock lateral or axial is applied to the tap the base can be deform causing leaks through the nets between the base and the opening of the neck of the container. Such a leak should be avoided especially for very oxidizing gases, corrosive and toxic reagents used for example for the micro-chip manufacturing in the semiconductor industry.
  • Classic faucets for gas container have a single primary valve (external sealing) simple) located in the valve body outside the container.
  • the purpose of this invention is to provide an improved faucet for container of gas, liquefied gas, or other fluid, preventing the leakage of the contents of the cylinder through the nets of the base and the neck of the container after the application of a shock violent at the tap.
  • the tap of the type mentioned above is characterized in that the base of the valve body is provided with a second external thread lying on the base and between the first net and the main body, and in that a clamping ring provided an internal thread is screwed onto the second thread, this clamping ring being adapted to be clamped with a defined torque against the neck of the container in order to maintain integrity and tightness of the commitment screwed between the base and the neck of the container in the event of a violent shock applied to the body of the faucet.
  • a weakening groove judiciously placed in relation to the clamping ring can be formed in the body of the tap between the base and the main part of the valve body approximately at the end of the ring facing towards the main part of the faucet body.
  • This optional groove then defines the rupture zone and limits the maximum force that can be applied to the base in the case of a violent shock exerted on the tap.
  • the invention also relates to a method of connecting a tap to a gas container, or liquefied gas, or other fluid as defined in claim 13.
  • the use of of the tap as a filling / withdrawal tap of a container of gas, liquefied gas, or other fluid is defined in claim 14.
  • FIG. 1 a tap 10 is shown connected to the collar C of a container or cylinder of gas of which only the upper part is shown.
  • the tap 10 has 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 one another and connected to one to the other by a zone of weakening formed by a circumferential groove 18 made in the surface external body 12.
  • the body 12 is also provided with a portion 20 extending laterally for connection of the valve 10 to a means of filling (not shown) of the cylinder or a device consumption (not shown) of the gas withdrawn from the cylinder.
  • a vertical passage 22 with different diameters extends from up and down through the faucet body 12 and a passage horizontal 24 is practiced in part 20 extending laterally.
  • the seat 34 is formed on an element tubular 36 which surrounds the control rod 30 and which is received in the vertical passage 22 in the body part 14.
  • a 33-1 to 33-6 seal assembly is arranged in the tubular element 36 around the stem of control 30 to prevent gas leakage along the rod 30.
  • the tubular element 36 is maintained in position by a gland ring 38 screwed into the passage longitudinal 22 at the top of the valve body 12 and an element retaining ring 40 is screwed onto an external thread of the valve body 12 and retains the packing ring 38.
  • the stem 30 comprises a lower part 30A and a upper part 30B connected together by means of coupling 44.
  • the upper part 30B of the control rod 30 has an external thread screwed into a thread internal 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 seal ring could be worn according to another embodiment by the element tubular 36 and the sealing seat could be formed on the lower part 30A of the control rod 30.
  • the part 30A of the control rod is provided with a extension 46 which extends down into the part of longitudinal passage 22 formed in the base 16 for a purpose which will be further explained in greater detail below.
  • a control wheel 58 is attached to the upper portion 30A of the control rod.
  • the base 16 is provided at its lower end with a cylindrical extension 47 with 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 comprising a piston 54 whose upper end is closed and the lower end is open.
  • the piston 54 is provided with its upper end a metal sealing ring or synthetic material forced by a spring 56 surrounding the piston 54 in sealed engagement with a surface seal formed at the lower end of the extension cylindrical 47 and surrounding the lower end of the passage 22.
  • Between its closed upper end and its open lower end the piston 54 is provided with several radial holes 59 connecting the outside of the piston 54 with the inside of it.
  • the sleeve 50 has at its end lower an internal thread 50-1 for the connection of a dip tube (not shown).
  • check valve assembly 52 mounted at the free end of the base 16 is at inside the cylinder if the tap 10 is connected to the neck of the cylinder.
  • control wheel 58 connected to the upper part 30B of the control rod 30 is turned in one direction to move the stem of control 30 down and away from the seal ring 32 the main primary valve 28 down from its seat fixed 34.
  • the extended portion 46 of the lower portion 30B of the stem of command 30 comes to contact the piston 54 of the set of check valve 52 to clear it down from its seat.
  • 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 by the main valve 28 open and through radial holes 36A practiced in the annular element 36 and in the passage lateral 24 in the withdrawal mode, or in the opposite direction in filling mode.
  • a clamping ring outer 62 surrounds the base 16 of the valve body 12 above the upper surface of the C-neck of the cylinder.
  • This ring 62 is in screwed engagement with the base 16.
  • the ring 62 is tightened by applying a predetermined pair to the ring down against the upper surface of the collar C of the cylinder in order to maintain the integrity and tightness 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 being outside the cylinder.
  • the base 16 has a first conical thread 16-1 by which the base 16 is screwed tightly in 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 16-1 conical net between first net 16-1 and the main part 14 of the body 12 and below the weakening groove 18.
  • the second 16-2 net has a base diameter that is a little bigger the maximum outer diameter of the first cone thread 16-1 and the second net 16-2 has a finer pitch than the first net 16-1 but in the same sense as this one.
  • the ring 62 is provided according to the embodiment represented a first upper portion 62-1 provided with a internal thread 62-2 and a second lower part 62-3 devoid of an internal thread and having a bearing surface lower 62-4 substantially radial engaging surface upper collar C of the cylinder when the ring 62 is tight against the C-neck of the cylinder.
  • Clamping ring 62 has one or more 62-5 through passages the thickness of the ring 62. This or these passages 62-5 detect any possible leakage along the neck and C-neck threads 16. If several passages 62-5 are provided, they can be spaced one from the other in the circumferential direction.
  • the ring 62 can be tightened by means of a tool (not shown) that can engage one or other of these passages 62-5.
  • passages 62-5 open into an inner circumferential groove 62-6 located between the upper part 62-1 and the part lower 62-3. However, for tightening the ring 62 it can also have a hexagonal outer shape or any other appropriate form. Passes 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 internal diameter of the part lower 62-3 of the clamping ring 62 is only slightly larger than the maximum external diameter of the conical thread 16-1 and substantially equal thereto. It is enough that the inner diameter of the lower part 62-3 of the clamping ring 62 is a little larger than the diameter external peak of the 16-1 conical thread to allow axial displacement of the ring 62 on the base 16 for the mounting and disassembly of the valve 10.
  • the minimum diameter internal thread 62-2 of the ring 62 is a bit bigger the maximum external diameter of the 16-1 conical thread.
  • the ring 62 is well bent around the base 16 and tight against the C-neck of the cylinder in order to protect the base 16 and prevent its deformation or tearing of the nets in the event of a violent side impact applied to the tap 10 which can cause it to bend or cut at the point of the weakening zone (groove 18).
  • the clamping ring 62 can be used in a valve 10 with or without the active flap 52. Instead of the flapper active 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 active check valve 52 or non-active because the benefit obtained by the check valve restraint 52 would be at least partially wiped out if after sectioning of the valve body 12 the contents of the cylinder would be prevented from escaping through the flow passage normal 22 of the base 16 but that a leak would nevertheless be possible around the base 16 by the threads of the base 16 and 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 previously and shown in the figure for valve 26 and the flap 52, any other embodiment can be provided for the valve 26 and also for the valve 52.
  • the ring tightening 62 is placed around the base 16 and screwed on the second net 16-2 until it is in a axial position (indicated by dotted 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 couple at the base 16 for the connection of the valve 10 to the cylinder, and after having screwed and tightened the base 16 of the tap 10 in the threaded hole in the neck C of the cylinder by the application of a predetermined tightening torque the ring 62 is tightened against the neck of the cylinder by applying a predetermined torque to the ring 62.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Taps Or Cocks (AREA)
  • Lift Valve (AREA)

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'invention concerne aussi un procédé de raccordement d'un robinet à un récipient de gaz, ou de gaz liquéfié, ou autre fluide, ainsi que l'utilisation du robinet comme robinet de remplissage/soutirage d'un récipient de gaz, de gaz liquéfié, ou autre fluide.The present invention relates to a tap for container of gas, or liquefied gas, or other fluid, having a valve body having a body portion head and a base with a first external thread for connecting the tap to the neck of a gas container, or of liquefied gas, or other fluid. The invention also relates to a method of connecting a faucet to a container of gas, or liquefied gas, or other fluid, as well as the use of the tap as a tap of filling / withdrawing a container of gas, liquefied gas, or other fluid.

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 cylindre. 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 connaít 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 tap of a container of gas is normally provided with a base having a thread conical outer which is screwed by the application of a couple predetermined in a threaded opening of a container of gas. The conical thread ensures the tight connection between the base of the faucet and the container. If a violent shock lateral or axial is applied to the tap the base can be deform causing leaks through the nets between the base and the opening of the neck of the container. Such a leak should be avoided especially for very oxidizing gases, corrosive and toxic reagents used for example for the micro-chip manufacturing in the semiconductor industry. Classic faucets for gas container have a single primary valve (external sealing) simple) located in the valve body outside the container. If a violent shock is applied to this faucet classic, for example in the event of an accident of a vehicle which container is mounted, the faucet body part containing the primary valve can be sectioned and the gas can escape freely through the gas passage of the base which remains engaged in the container neck and, possibly also between the threads of the base and the collar of the container, as quoted above. To remedy this disadvantage it has already been proposed to provide a check valve retained at the bottom of the base and which is therefore the inside of the container when the tap is connected to the cylinder. This valve can be a non-active valve which is closes only by the pressure of the fluid contained in the container if the main part of the faucet body is sectioned. We also know active valves that are always close before each closing of the valve primary education and which are open systematically after each opening of the primary valve. Faucets equipped with such valve and a primary valve are leak-proof valves internal and external double including the primary valve in outside the container and the check valve inside this one. However, these check valves can only prevent leakage of the contents of the container through the passage normal flow of the remaining valve body base engaged in opening the neck of the container when the main part of the tap body is severed but these flaps can not prevent leakage by the base and the neck of the container in case of deformation of the base resulting from a violent shock applied to the tap.

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 cylindre à travers les filets de l'embase et du col du récipient après l'application d'un choc violent au robinet.To remedy this disadvantage, the purpose of this invention is to provide an improved faucet for container of gas, liquefied gas, or other fluid, preventing the leakage of the contents of the cylinder through the nets of the base and the neck of the container after the application of a shock violent at the tap.

Selon l'invention, pour résoudre cet objet, le robinet du type cité ci-avant est caractérisé en ce que l'embase du corps de robinet est pourvu d'un second filet externe se trouvant sur l'embase et entre le premier filet et la partie principale du corps, et en ce qu'une bague de serrage pourvue d'un filetage interne est vissée sur le second filet, cette bague de serrage étant 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.According to the invention, to solve this object, the tap of the type mentioned above is characterized in that the base of the valve body is provided with a second external thread lying on the base and between the first net and the main body, and in that a clamping ring provided an internal thread is screwed onto the second thread, this clamping ring being adapted to be clamped with a defined torque against the neck of the container in order to maintain integrity and tightness of the commitment screwed between the base and the neck of the container in the event of a violent shock applied to the body of the faucet.

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.Through the clamping ring tightly against the collar of the container the risk of deformation of the base in case of a violent shock applied to the body of the faucet is strongly reduced. Part of the energy of the lateral shock is diffused on the container neck to protect the nets and prevent the base from deforming or degrading by tearing of the nets. The tightness of the nets is therefore insured and the contents of the container are confined within it.

Selon une caractéristique avantageuse de l'invention une rainure d'affaiblissement judicieusement placée par rapport à la bague de serrage peut être formée dans le corps du robinet entre l'embase et la partie principale du corps de robinet approximativement au niveau de l'extrémité de la bague faisant face vers la partie principale du corps de robinet. Cette rainure optionnelle définit alors la zone de rupture et limite l'effort maximal qui peut être appliqué à l'embase dans le cas d'un choc violent exercé au robinet.According to an advantageous characteristic of the invention a weakening groove judiciously placed in relation to the clamping ring can be formed in the body of the tap between the base and the main part of the valve body approximately at the end of the ring facing towards the main part of the faucet body. This optional groove then defines the rupture zone and limits the maximum force that can be applied to the base in the case of a violent shock exerted on the tap.

D'autres caractéristiques avantageuses de l'invention sont cités dans les revendications dépendantes 2 à 12. L'invention concerne aussi un procédé de raccordement d'un robinet à un récipient de gaz, ou gaz liquéfié, ou autre fluide comme défini dans la revendication 13. L'utilisation du robinet comme robinet de remplissage/soutirage d'un récipient de gaz, de gaz liquéfié, ou autre fluide est définie dans la revendication 14.Other advantageous features of the invention are cited in dependent claims 2 to 12. The invention also relates to a method of connecting a tap to a gas container, or liquefied gas, or other fluid as defined in claim 13. The use of of the tap as a filling / withdrawal tap of a container of gas, liquefied gas, or other fluid is defined in claim 14.

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 larger 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 FIG. 1 a tap 10 is shown connected to the collar C of a container or cylinder of gas of which only the upper part is shown. The tap 10 has 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 one another and connected to one to the other by a zone of weakening formed by a circumferential groove 18 made in the surface external 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 portion 20 extending laterally for connection of the valve 10 to a means of filling (not shown) of the cylinder or a device consumption (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 with different diameters extends from up and down through the faucet body 12 and a passage horizontal 24 is practiced in part 20 extending laterally.

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 precisely in the main body portion 14 is a valve assembly main 26 of usual construction but provided with a Inverted seat valve 28, that is a valve to be opened by axial movement of the control rod 30 downwards causing the removal of a sealing ring 32 made of metal or synthetic material carried by the control rod 30 towards the bottom of a fixed seat 34. The seat 34 is formed on an element tubular 36 which surrounds the control rod 30 and which is received in the vertical passage 22 in the body part 14. A 33-1 to 33-6 seal assembly is arranged in the tubular element 36 around the stem of control 30 to prevent gas leakage along the rod 30. The tubular element 36 is maintained in position by a gland ring 38 screwed into the passage longitudinal 22 at the top of the valve body 12 and an element retaining ring 40 is screwed onto an external thread of the valve body 12 and retains the packing ring 38. The stem 30 comprises a lower part 30A and a upper part 30B connected together by means of coupling 44. The upper part 30B of the control rod 30 has an external thread screwed into a thread internal 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 seal ring could be worn according to another embodiment by the element tubular 36 and the sealing seat could be formed on the lower part 30A of the control rod 30. The part 30A of the control rod is provided with a extension 46 which extends down into the part of longitudinal passage 22 formed in the base 16 for a purpose which will be further explained in greater detail below. 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 with 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 comprising a piston 54 whose upper end is closed and the lower end is open. The piston 54 is provided with its upper end a metal sealing ring or synthetic material forced by a spring 56 surrounding the piston 54 in sealed engagement with a surface seal formed at the lower end of the extension cylindrical 47 and surrounding the lower end of the passage 22. Between its closed upper end and its open lower end the piston 54 is provided with several radial holes 59 connecting the outside of the piston 54 with the inside of it. The sleeve 50 has at its end lower an internal thread 50-1 for the connection of 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 at inside the cylinder if the tap 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 part 30B of the control rod 30 is turned in one direction to move the stem of control 30 down and away from the seal ring 32 the main primary valve 28 down from its seat fixed 34. After the opening of the main valve 28 the extended portion 46 of the lower portion 30B of the stem of command 30 comes to contact the piston 54 of the set of check valve 52 to clear it down from 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 by the main valve 28 open and through radial holes 36A practiced in the annular element 36 and in the passage lateral 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 steering wheel 58 is rotated in one direction opposite to close the tap 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, a clamping ring outer 62 surrounds the base 16 of the valve body 12 above the upper surface of the C-neck of the cylinder. This ring 62 is in screwed engagement with the base 16. The ring 62 is tightened by applying a predetermined pair to the ring down against the upper surface of the collar C of the cylinder in order to maintain the integrity and tightness 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 being 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 tightly in 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 16-1 conical net between first net 16-1 and the main part 14 of the body 12 and below the weakening groove 18. The second 16-2 net has a base diameter that is a little bigger the maximum outer diameter of the first cone thread 16-1 and the second net 16-2 has a finer pitch than the first net 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 represented a first upper portion 62-1 provided with a internal thread 62-2 and a second lower part 62-3 devoid of an internal thread and having a bearing surface lower 62-4 substantially radial engaging surface upper collar C of the cylinder when the ring 62 is tight against the C-neck of the cylinder. Clamping ring 62 has one or more 62-5 through passages the thickness of the ring 62. This or these passages 62-5 detect any possible leakage along the neck and C-neck threads 16. If several passages 62-5 are provided, they can be spaced one from the other in the circumferential direction. The ring 62 can be tightened by means of a tool (not shown) that can engage one or other of these passages 62-5. The passages 62-5 open into an inner circumferential groove 62-6 located between the upper part 62-1 and the part lower 62-3. However, for tightening the ring 62 it can also have a hexagonal outer shape or any other appropriate form. Passes 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 internal diameter of the part lower 62-3 of the clamping ring 62 is only slightly larger than the maximum external diameter of the conical thread 16-1 and substantially equal thereto. It is enough that the inner diameter of the lower part 62-3 of the clamping ring 62 is a little larger than the diameter external peak of the 16-1 conical thread to allow axial displacement of the ring 62 on the base 16 for the mounting and disassembly of the valve 10. The minimum diameter internal thread 62-2 of the ring 62 is a bit bigger the maximum external diameter of the 16-1 conical thread. The ring 62 is well bent around the base 16 and tight against the C-neck of the cylinder in order to protect the base 16 and prevent its deformation or tearing of the nets in the event of a violent side impact applied to the tap 10 which can cause it to bend or cut 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 can be used in a valve 10 with or without the active flap 52. Instead of the flapper active 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 active check valve 52 or non-active because the benefit obtained by the check valve restraint 52 would be at least partially wiped out if after sectioning of the valve body 12 the contents of the cylinder would be prevented from escaping through the flow passage normal 22 of the base 16 but that a leak would nevertheless be possible around the base 16 by the threads of the base 16 and 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 previously and shown in the figure for valve 26 and the flap 52, any other embodiment 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 ring tightening 62 is placed around the base 16 and screwed on the second net 16-2 until it is in a axial position (indicated by dotted 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 couple at the base 16 for the connection of the valve 10 to the cylinder, and after having screwed and tightened the base 16 of the tap 10 in the threaded hole in the neck C of the cylinder by the application of a predetermined tightening torque the ring 62 is tightened 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 embodiment particular which has just been described above in detail but on the contrary, many modifications and variations can be made by the specialist without leave the scope of the following claims.

Claims (15)

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,
   caractérisé en ce que l'embase du corps de robinet est pourvu d'un second filet externe se trouvant sur l'embase et entre le premier filet et la partie principale du corps, et en ce qu'une bague de serrage pourvue d'un filetage interne est vissée sur le second filet, cette bague de serrage étant 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.
A valve for a container of gas, 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 valve to the neck of a gas container, or of liquefied gas, or other fluid,
characterized in that the base of the valve body is provided with a second external thread located on the base and between the first thread and the main body part, and in that a clamping ring provided with a internal thread is screwed onto the second thread, this clamping ring being adapted to be tightened with a defined torque against the neck of the container in order to maintain the integrity and the tightness 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.
Robinet selon la revendication 1, caractérisé en ce que le second filet a un pas plus fin que le premier filet mais du même sens que celui-ci.Tap according to claim 1, characterized in that the second thread has a finer pitch than the first thread but in the same direction as the latter. Robinet selon la revendication 1 ou 2, caractérisé en ce que le second filet est un filet cylindrique.Valve according to claim 1 or 2, characterized in that the second thread is a cylindrical thread. Robinet selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le premier filet est un filet conique et le second filet se trouve du côté de l'extrémité à grand diamètre du filet conique.Valve according to any one of claims 1 to 3, characterized in that the first thread is a conical thread and the second thread is on the side of the large diameter end of the conical thread. Robinet selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le diamètre de base du second filet est un peu plus grand que le diamètre externe maximal du premier filet.Valve according to any one of claims 1 to 4, characterized in that the base diameter of the second thread is a little larger than the maximum outer diameter of the first thread. Robinet selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la bague est pourvue d'une première partie pourvue du filetage interne dont le diamètre minimal interne est un peu plus grand que le diamètre maximal externe du premier filet et d'une seconde partie dépourvue d'un filetage interne et ayant une surface d'appui pour engager le col du récipient, la seconde partie ayant un diamètre interne qui est un peu plus grand que le diamètre maximal externe du premier filet.Valve according to any one of claims 1 to 5, characterized in that the ring is provided with a first portion provided with the internal thread whose internal minimum diameter is a little larger than the maximum external diameter of the first thread and of a second portion lacking an internal thread and having a bearing surface for engaging the neck of the container, the second portion having an inner diameter that is a little larger than the outermost diameter of the first thread. Robinet selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le corps du robinet a une rainure d'affaiblissement judicieusement placée par rapport à la bague de serrage.Valve according to any one of claims 1 to 6, characterized in that the valve body has a weakening groove judiciously placed relative to the clamping ring. Robinet selon la revendication 7, caractérisé en ce que la rainure affaiblissement se trouve entre l'embase et la partie principale du corps de robinet approximativement au niveau de l'extrémité de la bague faisant face vers la partie principale du corps de robinet.Valve according to claim 7, characterized in that the weakening groove is between the base and the main part of the valve body approximately at the end of the ring facing towards the main part of the valve body. Robinet selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la bague de serrage a au moins un passage s'étendant à travers l'épaisseur de la bague en vue de la détection d'une fuite entre les filets de l'embase et du col du récipient.Valve according to any one of claims 1 to 8, characterized in that the clamping ring has at least one passage extending through the thickness of the ring for the detection of a leakage between the threads of the base and the neck of the container. Robinet selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la surface circonférentielle externe de la bague est pourvue d'une forme, par exemple hexagonale, pour le serrage de la bague par un outil de serrage.Valve according to any one of claims 1 to 9, characterized in that the outer circumferential surface of the ring is provided with a shape, for example hexagonal, for clamping the ring by a clamping tool. Robinet selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le robinet est un robinet du type comportant un ensemble de vanne principale disposé dans la partie de corps principale du robinet.Valve according to any one of claims 1 to 10, characterized in that the valve is a valve of the type having a main valve assembly disposed in the main body portion of the valve. Robinet selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le robinet est un robinet du type comportant un ensemble de clapet de retenue monté à l'extrémité libre de l'embase de façon à se trouver à l'intérieur du récipient lorsque le robinet est raccordé au récipient. Valve according to any one of claims 1 to 11, characterized in that the valve is a valve of the type comprising a set of check valve mounted at the free end of the base so as to be within the container when the tap is connected to the container. Robinet selon la revendication 12, caractérisé en ce que l'ensemble de vanne principale comporte une vanne à siège inversée et l'ensemble de clapet de retenue est formé en vue d'être ouvert par une partie prolongée de la tige de commande de l'ensemble de vanne principale lorsque cette tige de commande est actionnée pour ouvrir la vanne principale.Valve according to claim 12, characterized in that the main valve assembly comprises an inverted seat valve and the check valve assembly is formed to be opened by an extended portion of the control rod of the main valve assembly when this control rod is actuated to open the main valve. Procédé de raccordement d'un robinet à un récipient de gaz, ou gaz liquéfié, ou autre fluide, le robinet comportant un corps de robinet ayant une partie principale et une embase pourvue d'un premier filet pour raccordement du robinet à un col du récipient, ce procédé étant caractérisé par les étapes suivantes : (a) visser une bague de serrage sur un second filet prévu sur l'embase du corps de robinet entre le premier filet et la partie principale du corps de robinet et placer la bague sur l'embase dans une position dans laquelle elle n'empêche pas l'application d'un couple à l'embase pour le raccordement du robinet au récipient dans l'étape de raccordement suivante ; (b) visser l'embase du corps de robinet dans un trou fileté du col du récipient en engageant le premier filet dans ce trou fileté et serrer l'embase dans le trou du col du récipient par application d'un couple de serrage prédéterminé à l'embase; et (c) serrer la bague contre le col du récipient avec un couple prédéterminé appliqué à la bague 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 de robinet. A method of connecting a valve to a gas container, or liquefied gas, or other fluid, the valve having a valve body having a main portion and a base provided with a first thread for connecting the valve to a neck of the container this method being characterized by the following steps: (a) screw a clamping ring on a second thread provided on the base of the valve body between the first thread and the main part of the valve body and place the ring on the base in a position in which it does not prevent not applying a torque to the base for connecting the valve to the container in the next connection step; (b) screwing the valve body base into a threaded hole in the neck of the container by engaging the first thread in this threaded hole and tightening the base into the hole in the neck of the container by applying a predetermined tightening torque to the base; and (c) clamping the ring against the neck of the container with a predetermined torque applied to the ring to maintain the integrity and sealing of the engagement screwed between the base and the neck of the container in the event of a shock violent applied to the faucet body. Utilisation du robinet selon l'une quelconque des revendications 1 à 13 comme robinet de remplissage/soutirage d'un récipient de gaz, de gaz liquéfié, ou autre fluide, comportant un col pourvu d'une ouverture filetée dans laquelle l'embase du robinet est vissée au moyen du premier filet, caractérisée en ce que la bague est serrée au moyen d'un couple prédéterminé 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 de robinet.Use of the tap according to any one of claims 1 to 13 as a filling / withdrawal tap of a container of gas, liquefied gas, or other fluid, comprising a neck provided with a threaded opening in which the base of the tap is screwed by means of the first thread, characterized in that the ring is tightened by means of a predetermined torque against the neck of the container in order to maintain the integrity and the tightness of the engagement screwed between the base and the container neck in the event of a violent shock applied to the valve body.
EP20040101075 2004-03-16 2004-03-16 Valve with counternut Expired - Lifetime EP1577604B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE200460011179 DE602004011179D1 (en) 2004-03-16 2004-03-16 Cock with locknut
AT04101075T ATE383542T1 (en) 2004-03-16 2004-03-16 COCK WITH LOCK NUT
EP20040101075 EP1577604B1 (en) 2004-03-16 2004-03-16 Valve with counternut
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 true EP1577604A1 (en) 2005-09-21
EP1577604B1 EP1577604B1 (en) 2008-01-09

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EP20040101075 Expired - Lifetime EP1577604B1 (en) 2004-03-16 2004-03-16 Valve with counternut

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

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JP2010106902A (en) * 2008-10-29 2010-05-13 Neriki:Kk Vessel valve and its attaching method
CA2764615A1 (en) * 2009-06-08 2010-12-16 C.T.S. S.P.A. 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
CN114517888B (en) * 2022-03-09 2024-06-21 浙江工业大学 Self-enhancement technology of station hydrogen storage cylinder based on self-enhancement theory

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DE1094055B (en) * 1959-01-08 1960-12-01 Hans Kreidel Jun Direction-adjustable and lockable screw-in high pressure pipe connection
FR2602303A1 (en) * 1986-07-31 1988-02-05 Air Liquide "Double seal" valve for compressed and liquefied gas bottles
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US7418974B2 (en) 2008-09-02
JP2005265190A (en) 2005-09-29
ATE383542T1 (en) 2008-01-15
US20050205821A1 (en) 2005-09-22
EP1577604B1 (en) 2008-01-09
JP5084107B2 (en) 2012-11-28
DE602004011179D1 (en) 2008-02-21

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