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  1. #1
    Join Date
    Sep 2003
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    Galston NSW
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    83
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    16

    Default Sealing gas inlets on wok burner

    I've mounted a wok burner on my BBQ and the unit has two gas inlets, one of which I want to safely seal.
    A specialist plumber (Sydney area) tells me it can't be done with 100% guarantee, which I can't see.
    I thought the answer would be an appropriate pipe cap end in conjunction with gas pipe tape but apparently BBQ gas is a different kettle of fish !
    Any ideas from the experts would be most appreciated......

    Ross McCarthy
    R. McCarthy
    Name the greatest of all inventors - accident !

  2. #2
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    Nov 2007
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    Fremantle
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    Default

    Quote Originally Posted by R. McCarthy View Post
    I've mounted a wok burner on my BBQ and the unit has two gas inlets, one of which I want to safely seal.
    A specialist plumber (Sydney area) tells me it can't be done with 100% guarantee, which I can't see.
    I thought the answer would be an appropriate pipe cap end in conjunction with gas pipe tape but apparently BBQ gas is a different kettle of fish !
    Any ideas from the experts would be most appreciated......

    Ross McCarthy
    Hi Ross,

    Are you sure that the 2nd inlet is actually an 'inlet' ??
    Some of these burners are designed to be 'daisy-chained',
    so the 2nd inlet is actually an 'outlet'.
    If this is the case, then I'm sure there would be no problem putting a pipe cap on it to seal it.

    Heop that Helps


    Cheers

  3. #3
    Join Date
    Sep 2003
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    Galston NSW
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    83
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    Default Sealing gas inlets on wok burner

    Thanks Mickj - the attached photo (if I did it right !) shows the 2 inlets they look like inlets to me) - I want to hook the gas up to the bottom one and seal the one on the left - does that appear feasible ?
    R. McCarthy
    Name the greatest of all inventors - accident !

  4. #4
    Join Date
    Mar 2005
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    Jindabyne
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    40

    Default

    Hi,

    On mine the other thread is where the rest of the bar-b-q is hooked up to, so both the barbie and wok burner are fed from the same bottle. If it you don't need this then you can cap it off but you may need plumbers tape to make a good seal.

    Cheers
    Brian
    Creator of Fine Firewood

  5. #5
    Join Date
    Nov 2007
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    Fremantle
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    Default

    Hi Ross,
    That looks like a simple T-Piece.
    I can't see a problem by putting a cap on one of the ends.
    Use 'Gas Tape' and you should be ready to cook.


    Cheers


    Mickj

  6. #6
    Join Date
    Sep 2003
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    Galston NSW
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    Default

    Thanks "Outsider" & "Mickj" for your interest ............
    R. McCarthy
    Name the greatest of all inventors - accident !

  7. #7
    Join Date
    Oct 2007
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    Alexandra Vic
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    Default

    1. As mentioned, system is an inlet/outlet combination intended to daisy chain the gas feed, so it goes Cylinder, regulator/feedhose (probably BBQ original), Wok Burner T pce, short hose (probably supplied with WB) from T pce to BBQ burner valve set. This arrangement may or may not suit your needs.

    2. If you do need to permanently cap the outlet on the T pce, the problem will be to find a cap that is suitable. As you are probably aware, there are a variety of different threads used for bottled gas systems, and a very limited range of adaptors and other fittings. Most likely a standard cap fitting for the thread will not be available.

    3. Teflon tape in not adequate as a seal in gas fittings and should not be used. Fittings generally rely on a machined mating surfaces (tapers etc) or appropriate pliable rubber seals for sealing. Specificic gas approved sealing compounds are available where required, but seem to come in industry sized lots, rather than DIY micropacks.

    I suspect your original plumber was correct, because of the lack of suitable capping fittings. Sorry, but I can't even come up with an alternative suggestion.

  8. #8
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    Sep 2003
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    Galston NSW
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    Default

    Thanks for the info malb - I'll get there somehow !
    R. McCarthy
    Name the greatest of all inventors - accident !

  9. #9
    Join Date
    Jun 2007
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    sydney ( st marys )
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    Default

    Maybe you could get someone to silver solder a piece of material over the end for a permanent seal.

  10. #10
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    Default

    Im just curious MALB if Teflon tape is not adequate or shouldnt be used why does The Australian Gas Association approve Gas Seal pipe joint tape? Its 100% Teflon.

  11. #11
    Join Date
    Oct 2007
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    Alexandra Vic
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    Quote Originally Posted by pipeclay View Post
    Im just curious MALB if Teflon tape is not adequate or shouldnt be used why does The Australian Gas Association approve Gas Seal pipe joint tape? Its 100% Teflon.
    Caught me out Pipeclay. I was writing from memory, recalling warnings about using Teflon to seal gas lines. Since then, higher density tapes have been been developed that are approved for gas. Rereading the thread, some people are refering to 'Gas tape' and others to 'plumbers tape'. I suspect that the generic white plumbers tape found in DIY shops arround the country is not approved for gas installations.

  12. #12
    Join Date
    Sep 2007
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    Sydney
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    Default

    What does the fitting look like under the plastic covers?

    If it has a male thread with a 45 degree bevel on the end, then it is probably a flare fitting. If so, take it to a plumbers supply that stocks flare fittings and ask for a flare cap. You probably won't even need thread tape as it seals on the taper but it won't hurt to use it anyway, the yellow or pink, not the white.
    Cheers

    Alan M

    My Daughter's food blog www.spicyicecream.com.au

  13. #13
    Join Date
    Aug 2003
    Location
    Conder, ACT
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    Why not undo the two screws and replace the piggy back fitting with a single.

  14. #14
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    Jan 2007
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    Adelaide - West
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    Default

    The reason your wok burner has two fittings is that your supposed to hook the gas bottle to one inlet, and then hook from the other one to the rest of the barbeque ( as suggested earlier).

    The reason your going to have trouble capping it is bacause plumbing stores most likely won't stock a cap for it because it should be left hand thread.

    The barbeque place you got the burner from should have caps for it. Otherwise try and industrial gas place like BOC, (or Gasweld??), Air compressor places? Pirtek?

    Thread seal is OK to use, You definately need it on a cap.

    When you have capped it, test for leaks. Fill a garden spray bottle with a very soapy water mix, Dishwashing liquid is best.
    Turn the gas on spray it over every fitting, don't be cheap- use lots of it. If you have a leak it will make bubbles.

    If the thread is WIDE and COARSE you probably wont be able to seal it with anything other than a specialist fitting designed for the application, which is probably why your plumber said "no-guarantees."
    If you dont play it, it's not an instrument!

  15. #15
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    Sep 2003
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    Galston NSW
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    Default

    Are you into ESP ? - I thought of this very same thing last night and I think that's the way I'll go.....
    R. McCarthy
    Name the greatest of all inventors - accident !

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