Composite Propane Cylinders

Discussion in 'All Things Boats & Boating' started by missinginaction, Feb 2, 2021.

  1. BlueBell
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    BlueBell . . . _ _ _ . . . _ _ _

    MIA,

    Maybe that's the truth of it, they're only good for five years.
    What did the manufacturer say or did you contact them?
     
  2. missinginaction
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    missinginaction Senior Member

    Bluebell,

    According to the manufacturer these tanks have a 15 year service life. Re-certification criteria is spelled out in US DOT special permit 12706 which also states a 15 year service life (from date of manufacture). If you're curious I'll put a link below. The criteria is printed at the bottom of page 9 and continues onto page 11 of the document. I'm going to take SP12706 to a local welding supply business. I can't imagine that they would refuse to re-certify. But we'll just have to see.

    https://www.phmsa.dot.gov/approvals...e-serve/offer/SP12706.pdf/offerserver/SP12706

    MIA
     
  3. gonzo
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    gonzo Senior Member

    You need to find someone with the equipment to laser-etch the recertification. I suppose if these cylinders become popular, testing places may buy the equipment to etch the recertification numbers.
     
  4. Ike
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    Ike Senior Member

    I did a search on these tanks, Oddly enough you can get them from Walmart.
     
  5. Will Gilmore
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    Will Gilmore Senior Member

    Does Walmart do a swap program like it does with metal? If that is the case, inspection may not be an issue.

    -Will (Dragonfly)
     
  6. BlueBell
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    BlueBell . . . _ _ _ . . . _ _ _

    MIA is in NY and can't find anything on these.
    You'd think the manufacturer would be a little more forthcoming.
    He's got their literature it seems but no conversation about filling and recerts...
     
  7. gonzo
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    gonzo Senior Member

    It's a new product, so it may be expecting to have a service network 5 years from now when they need recerts.
     
  8. Barry
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    Barry Senior Member

    "Viking Cylinders is the North American brand for Hexagon Ragasco’s composite LPG cylinder, a product that has been in production since 2000. With more than 9 million cylinders manufactured in Norway and sold around the world, the company has a reputation for producing the safest composite propane gas cylinders."

    According to Viking the re-certification metal decal is epoxied onto the tank. Lazer etching is not a requirement
     
  9. gonzo
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    gonzo Senior Member

    Laser etching is required in the USA.
     
  10. cthippo
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    cthippo Senior Member

    Our SCBA bottles have tags epoxied on when they are hydro'd every 5 years.
     
  11. gonzo
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    gonzo Senior Member

    They don't carry flammable gas. Read the link in post #17 it goes to the regulations for these tanks.
     
  12. Will Gilmore
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    Will Gilmore Senior Member

    Since they are made of composite material, you could probably just laser etch the metal tag epoxied onto them.
     
  13. gonzo
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    gonzo Senior Member

    Read the link. That would not comply with regulations.
     
  14. Barry
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    Barry Senior Member

    Gonzo
    You misread the document
    Page 10 #4 RETEST, which is what we are discussing here, requires a label affixed with and covered with epoxy. Your reference to the laser etching pertains to the original marking of the tanks, DOT approvals, etc

    The first test in 10 years,
     

  15. kach22i
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    kach22i Architect

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