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Politique de Luxfer pour l’extension de la durée de vie des bouteilles bobinées en composite

Luxfer Gas Cylinders reçoit occasionnellement des demandes d’extension de durée de vie pour les bouteilles bobinées en composite de Luxfer.

L’ensemble des bouteilles bobinées en composite de Luxfer a été conçu pour une durée de vie spécifique, généralement limitée à 15 ans. Actuellement, aucune autorisation légale ne nous permet de prolonger la durée de vie de ces bouteilles. En outre, si ces produits enregistrent un niveau de sécurité exemplaire, c’est en partie grâce aux limites réglementant leur durée de vie.

C’est la raison pour laquelle la politique de la société Luxfer Gas Cylinders ne prévoit aucune extension de durée de vie des bouteilles en composite.

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Luxfers Grundsatzerklärung hinsichtlich einer vorgeschlagenen längeren Nutzungsdauer von vollumwickelten Verbundflaschen

Gelegentlich erhält Luxfer Gas Cylinders Anfragen über die Möglichkeit, die Nutzungsdauer seiner vollumwickelten Composite-Flaschen zu verlängern.

Alle vollumwickelten Verbundflaschen von Luxfer sind für eine beschränkte Nutzungsdauer ausgelegt, in den meisten Fällen auf 15 Jahre. Derzeit gibt es keine Ausführungsbestimmungen für die Verlängerung der Nutzungsdauer von solchen Flaschen. Überdies hat die gewerberechtlich vorgeschriebene Beschränkungen der Nutzungsdauer zu der beispiellosen Sicherheit dieser Produkte beigetragen.

Aus diesem Grund besteht Luxfer Gas Cylinders auf seinen Unternehmensgrundsätzen und verlängert die Nutzungsdauer seiner Verbundflaschen nicht.

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Luxfer clarifies difference between bowed and bulged aluminum cylinders

Luxfer Gas Cylinders has received an increasing number of inquiries about the difference between “bowed” and “bulged” aluminum cylinders. The pictures and information below are intended to clarify this important difference.

Bowed Cylinder A bow is a slight curve in the sidewall of an aluminum cylinder (see image above). A fairly common cosmetic feature, a bow is not dangerous and does not affect cylinder performance. A bow is an occasional by-product of the manufacturing process, not a manufacturing defect. Bows occur most often in taller cylinders, including scuba cylinders with a capacity of 80 cubic feet or more. A typical bowed cylinder has one convex side curving slightly outward and an opposite concave side (180° degrees away) curving slightly inward. The curves are long and gradual, covering much of the length of the cylinder sidewall. Most bows are barely discernible with the naked eye, but they sometimes become noticeable when you hold a straight edge against the cylinder wall and rotate the cylinder to reveal both the convex and concave sides. More severely bowed cylinders are sometimes called “banana shaped,” and even these cylinders are safe to use. Infrequently a cylinder will have one straight side and one slightly convex (outward curving) side. Such a condition, called an unparallel sidewall or a plano-convexity, is also a type of bow. It does not affect cylinder performance. Inspectors should be careful not to misidentify the harmless, slightly convex side of a bowed cylinder as a bulge, which is completely different and a very rare condition.A bow is often so subtle that the naked eye has difficulty detecting it. (In the picture above, the bow has been exaggerated somewhat to make it clearly visible.) Using a straight edge will usually reveal convexity and concavity. Bear in mind that the convex (outward curving) side is sometimes more pronounced than the concave side. Do not mistake the convexity of a bow for a bulge! (For more information about bulges, see the following section.)

Bulged CylinderA bulge is an extremely rare, dangerous condition. Bulged cylinders must be immediately condemned and removed from service. Unlike a bow, which is usually slight and sometimes difficult to see, a bulge is generally very pronounced and obvious, even to the naked eye. Bulges occur in cylinders that have been overheated or in cylinders with sidewalls thinned by severe corrosion. There are two basic types of bulges. A long, convex bulge protrudes outward noticeably on one side or around the entire circumference of the cylinder; such a bulge occurs when an entire cylinder has been exposed to high heat. A smaller, “goose-egg-shaped” bulge usually indicates localized overheating, which is the result of “spot annealing.”

If you are uncertain whether a cylinder is bulged, remove it from service and contact Luxfer Customer Service before condemning the cylinder.

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Dates when Luxfer changed its aluminum alloy from 6351 to 6061

Between 1987 and 1988, Luxfer Gas Cylinders discontinued use of 6351 aluminum alloy and began using a proprietary version of 6061 aluminum alloy for all its aluminum cylinder models manufactured in the United States. Listed below are the dates by model number when the transitions to the new alloy occurred. Any current Luxfer models that do not appear on this list were never made from 6351 alloy in the first place and have always been made from Luxfer's proprietary 6061 alloy.

SCUBA

S30, S63 -May 1988

S40 - June 1988

S50, S92 - April 1988

S72, S100 - August 1987

S80 - January 1988

S808 - May1987

SCBA

L7, L8, L13 - September 1987

L13 - May 1988

L15 - January 1989

L26 - February 1988

L45 - November 1987

CO2

C1.2, C1.5 - January 1989

C2 - November 1988

C10 - August 1988

C5 - June 1988

C15 - November 1987

C20, C35 - April 1988

C50 - February 1988

Medical

M9 - January 1988

MD15, ME24 - December 1987

Industrial Gas

N22, N150 - May 1988

N33 - November 1988

N60, N122 - December 1987

N88 - December 1988

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Limited warranty for Australia and New Zealand

Effective: September 1, 2003

A. What the Luxfer Limited Warranty covers:

  1. Luxfer Gas Cylinders warrants that each new aluminum or composite cylinder that it manufactures shall be free of manufacturing and workmanship defects. This warranty provision also covers the external and internal cleanliness and the exterior finish of each new cylinder, which will be judged in accordance with regulatory requirements in the country in which Luxfer manufactured and shipped the cylinder, as well as in accordance with Luxfer quality standards.
  2. Luxfer Gas Cylinders further warrants that its aluminum and composite cylinders will pass each required requalification test for 15 years from the original hydrostatic test date if the cylinder has been properly maintained and used in accordance with Luxfer policies, recommendations, usage guides and product literature, as well as periodic technical bulletins and safety bulletins; this information may be found in the publications cited and on the Luxfer Gas Cylinders website at www.luxfercylinders.com. On an aluminum cylinder, the original hydrostatic test date is the earliest test date stamped on the cylinder crown; on a composite cylinder, the original hydrostatic test date is either stamped on the cylinder neck or printed on a label on the cylinder body.
  3. This warranty covers cylinders manufactured by Luxfer Gas Cylinders on or after September 1, 2003, and does not include valves, regulators or any other devices or equipment manufactured by other companies and attached to or used in conjunction with Luxfer cylinders. This warranty is not retroactive to Luxfer cylinders manufactured before September 1, 2003.
  4. IN NEW ZEALAND ONLY: to the maximum extent permitted by law (including, without limitation, under the Consumer Guarantees Act 1993 (“CGA”) and Fair Trading Act 1986 (“FTA”)), Luxfer Gas Cylinders does not warrant, undertake or make any representations, and disclaims all warranties, undertakings or representations, whatsoever (whether implied or express) other than those expressly set out in this warranty. For the avoidance of doubt, notwithstanding anything in this warranty, nothing in this warranty shall be construed as excluding, limiting or modifying any express or implied condition, warranty, right or remedy conferred by the CGA or FTA to any extent not permitted by law.
  5. IN AUSTRALIA ONLY: the express written warranties described in this limited 15-year warranty operate only to the extent permissible by law.
  6. This warranty is subject to the owner, and all users, of the cylinder complying with each of the requirements or restrictions set out in sections B and C below. In the event of any failure to comply with any such requirement or restriction, this warranty shall immediately be void to the maximum extent permitted by law.

B. Restrictions to this Limited Warranty:

  1. Throughout the entire 15-year warranty period, each cylinder must be visually inspected internally and externally by properly trained and certified inspectors at intervals required by applicable regulations in the country in which the cylinder is being used. All tests and inspections, including (but not limited to) required periodic requalification testing, must be performed at the owner’s expense. The results of each required inspection must be properly documented in accordance with applicable regulations. Cylinder inspections, maintenance and usage must also conform to Luxfer policy requirements and technical recommendations (see applicable policy statements and technical information, based on cylinder type, on the Luxfer Gas Cylinders website at www.luxfercylinders.com).
  2. The cylinder must not be filled beyond its rated working capacity. Without limiting the generality of paragraph 5 above, overfilling the cylinder will immediately void this warranty.
  3. The cylinder must be used only for the specific purpose or service for which it was designed. (For example, medical oxygen cylinders must not be used for scuba diving.) Without limiting the generality of paragraph 5 above, using a Luxfer cylinder for a purpose or service for which it was not designed will immediately void this warranty.
  4. Luxfer reserves the right to retest or reinspect any cylinder returned with the claim that it has failed any type of test or inspection (including but not limited to required periodic requalification testing, hydrostatic retesting, ultrasonic testing, eddy-current testing and/or visual inspection). Luxfer further reserves the right to make the final determination concerning proper disposition of any returned cylinder. Disposition will be made in accordance with all applicable regulations in the country in which the cylinder was being used at the time of inspection.
  5. This non-transferable warranty is valid only for, and is for the sole benefit of, the original owner of each Luxfer cylinder. Proper documentation of ownership, such as a valid warranty card and/or an original purchase receipt, will be required to verify ownership before any warranty claims will be honored.
  6. Cylinders will be replaced only in accordance with published Luxfer policy current at the relevant time (see applicable policy statements, based on cylinder type, at www.luxfercylinders.com). Luxfer Gas Cylinders reserves the right to change policies, including any provisions of this limited warranty, without prior notice.

C. This Limited Warranty does not cover:

  1. Cylinders damaged during shipping and handling.
  2. Cosmetic damages, such as scratches, dents, nicks and abrasions that occur after a new cylinder is removed from its packaging for the first time.
  3. Cylinders involved in accidents and fires.
  4. Cylinders subjected to improper use, improper storage, improper maintenance and/or negligence.
  5. Cylinders subjected to unauthorized repairs and modifications, including (but not limited to) grinding, cutting, sand-blasting, shot-blasting, media-blasting, sanding, brushing, polishing, engraving, scraping and any other activity that removes metal from aluminum cylinders or affects the epoxy resin matrix or protective fiber overwrap on composite cylinders. Additional unauthorized activities include subjecting cylinders to harsh chemicals (e.g., certain cleaners, caustics, acids, solvents, coatings and other corrosive substances); exposing cylinders to heat processes that could anneal aluminum or adversely affect epoxy resin and fibers; recutting or resurfacing O-ring glands; and rethreading cylinders. Without limiting the generality of paragraph 5 above, such unauthorized activities will immediately void this limited warranty. Moreover, cylinders modified or affected by such unauthorized activities may become unsafe to fill and use. Luxfer shall not be responsible or liable for the condition or performance of any Luxfer cylinder modified by unauthorized persons or companies. (See the usage guides and product literature accompanying Luxfer cylinders, as well as technical and safety information published by Luxfer and posted on the Luxfer website at www.luxfercylinders.com.)

D. To obtain warranty service for your Luxfer cylinder:

  1. Contact the Luxfer customer service department in the country in which the cylinder is being used. In Australia & New Zealand please call: 61 2 9830 0999.
  2. Be prepared to provide the following: i) serial number, ii) original hydrostatic test date, iii) description of the problem.

If you have questions about this limited warranty, please call Luxfer Customer Service in Australia at 61 2 9830 0999.

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Transport Canada

Transport Canada reports to Parliament and Canadians through the minister of Transport. It works with its portfolio partners, other government departments and jurisdictions, and industry to ensure that all parts of Canada's transportation system work well.

Transport Canada employs 4,700 people at its headquarters and in five regional offices across the country.

Find out more on their website.

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Aluminum cylinder serial numbers and markings

1st Row

Mark and explanation

  • TC or CTC = Transport Canada
  • 3ALM = Aluminum specification (Canada)
  • 124 = Service pressure (bar)
  • T11.3KG = Tare weight (Kilograms)
2nd Row

Mark and explanation

  • DOT = US Department of Transportation
  • 3AL = Aluminum specification (USA)
  • 1800 = Service pressure (psi)
  • U372530 = Serial number
  • Luxfer or M#### = Manufacturing plant identifier
3rd Row

Mark and explanation

  • 01 = Month of manufacture
  • A = Mark of independent inspector
  • 98 = Year of manufacture
  • 20#CO2 = CO2 capacity
  • TW24.9 = Tare wight (lbs)

Stamping layouts have changed slightly over the years. If in doubt, please contact customer service.

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UK Health and Safety Executive

This has helped make Britain one of the safest places in the world to work, saving thousands of lives, preventing many more injuries at work and reducing the economic and social costs of health and safety failures. Find out more on their website.

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Typical markings for a permanent gas cylinder according to TPED

  1. 25E = Thread Specification - Important to ensure the correct valve is used with your cylinder.
  2. GB = Country of Manufacture
  3. LUXFER = Cylinder Manufacturer
  4. P3136Z ....= Cylinder Type Number and Serial Number - This number is recorded by Luxfer which means, if ever necessary, the entire manufacturing history of your cylinder can be traced.
  5. AA6061 T6 = Alloy of Construction
  6. 11,8MM = Design Minimum Wall Thickness.
  7. 12,4KG = Empty Weight of Cylinder Only (kg)
  8. 10L = Minimum Water Capacity (litres)
  9. PW200 BAR = (Working Pressure) - Shows the pressure that the cylinder should be filled to - this must not be exceeded.
  10. PH300 BAR = (Test Pressure) - Shows the pressure that the cylinder should be tested to - this must not be exceeded.
  11. p 0038 = The mark of Conformity and Notified Body reference number to the Transportable Pressure Equipment Directive 1999/36/EC.
  12. e2UK907 GB = Pattern Approval number according to Directive 84/526. Replaced by EN1975 when this specification is design basis. 
  13. [STAMP] = Stamp of Notified Body.
  14. 2002/09 = Year and Month of initial test.

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Typical markings for a SCUBA cylinder according to PED

  1. M25 x 2 = Thread Specification - Important to ensure the correct valve is used with your cylinder.
  2. UK = Country of Manufacture
  3. LUXFER = Cylinder Manufacturer
  4. P3173V....= Cylinder Type Number and Serial Number - This number is recorded by Luxfer which means, if ever necessary, the entire manufacturing history of your cylinder can be traced.
  5. AA6061 T6 = Alloy of Construction
  6. 11,6MM = Design Minimum Wall Thickness.
  7. 9,8KG = Empty Weight of Cylinder Only (kg)
  8. 7L = Minimum Water Capacity (litres)
  9. PW 232 BAR = (Working Pressure) - Shows the pressure that the cylinder should be filled to - this must not be exceeded.
  10. PT 348 BAR = (Test Pressure) - Shows the pressure that the cylinder should be tested to - this must not be exceeded.
  11. PS 287 BAR AT 60°C = (Service Pressure) - Shows the maximum service pressure and operating temperature for which the cylinder design is approved. This must not be confused with the working pressure (9).
  12. This is the mark of Conformity and Notified Body Reference Number according to the Pressure Equipment Directive 97/23/EC.
  13. 2002/ 2 = (Test Date) - Year and Quarter of year of initial test.