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  1. #1
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    Anyone know their valves?

    Hi

    Can anyone put a manufacturer's name to this valve? Ideally, I'd like to find a service kit for it:

    https://drive.google.com/open?id=1Pa...MfbXNsg5hTTDbu
    https://drive.google.com/open?id=1_y...dq2ggJoqkvce6Q
    https://drive.google.com/open?id=1Ux...6MWexT3FP1Lm6p

    Also, I'm struggling to find the proper spec for the main valve to tank O ring. Is is a BS-something?

    Thanks, as always.

    Edit - having discovered EN144, the O ring might be 25mm x 4mm, but what hardness? 90, I guess?
    Last edited by Icon; 27-04-2019 at 09:40 PM.

  2. #2
    Gimme a medal BenL's Avatar
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    They're all much of a muchness, dimension-wise. And fairly standard afaic.

    Hopefully IainHSM will be along soon to offer more technical (and accurate) advice, if he hasn't yet been banned for being accurate and technical.
    I don't want to get technical or anything, but alcohol IS a solution

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    Gimme a medal BenL's Avatar
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    Dubble Bubble
    I don't want to get technical or anything, but alcohol IS a solution

  4. #4
    Established TDF Member steelemonkey's Avatar
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    Quote Originally Posted by BenL View Post
    They're all much of a muchness, dimension-wise. And fairly standard afaic.

    Hopefully IainHSM will be along soon to offer more technical (and accurate) advice, if he hasn't yet been banned for being accurate and technical.
    Ian being accurate and technical? Never!
    Paul.
    If God had meant us to breathe underwater, he would have given us larger bank balances.
    Human beings were invented by water as a means of moving itself from one place to another.

  5. #5
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    Quote Originally Posted by steelemonkey View Post
    Ian being accurate and technical? Never!
    Either way accurate or technical answers will not be acceptable by our moderator.

    The valve in your photo is a rubbish copy of Itailian tat.
    That said try DIR Zone LAVO valve for the spare parts needed

    As you only want one of each try first Divelife UK

    https://www.divelife.co.uk/modular-v...-230-bar-70012

    If that fails and they give you greief about complying to HSE rues etc try:

    https://scubaleeds.co.uk/valve-spind...ves-manifolds/
    https://www.momodive.it/it/rubinetti...mbola-sub.html

    If that fails and they wont speak english to you try:

    https://www.scubastore.com/scuba-div...gIcg&gclsrc=ds

    Failing that what you have is a poor copy of an Italian Scubatec valve

    http://www.scubatec.org

    After this inspect all your diving gear and make a technical file of all the service parts part numbers and suppliers of the parts you will need for your kit. Budget 60 and spend it on a complete set of spares kit this will include a waterproof tuppaware box from Waitrose or the like and never pay more than 12 for a small tube of Chisto-Lube MCH111 oxygen lubricant. And next time you consider buying any dive kit find out first the service items prices and spares availability before you buy.
    Last edited by iain/hsm; 28-04-2019 at 10:06 AM.

  6. #6
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    Quote Originally Posted by Icon View Post
    Hi

    Also, I'm struggling to find the proper spec for the main valve to tank O ring. Is is a BS-something?
    Edit - having discovered EN144, the O ring might be 25mm x 4mm, but what hardness? 90, I guess?
    You first really need to know the cylinder thread form where the 0-ring sits.
    If the cylinder is machined with a countersunk chamfer end (this uses a fat section 0-ring)
    or if the thread is counterbored (stepped) this uses a narrow section 0-ring

    Either way it is common to use the same valve but fit either of the two different 0-ring sizes to seal each type of cylinder form.

    If using a nitrile o-ring standard 70 shore is commonly used by your LDS as its cheaper.
    If your using a Viton o-ring material on a countersunk neck then use the 90 shore option
    as opposed to the standard Viton 75 shore

    EPDM is another common poor quality material used by dive shops for nitrox service,
    I think its used due to its pretty green colour and to fool the foolish

  7. #7
    Established TDF Member Paulo's Avatar
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    If it were me, I would swap the valve out for an MDE one but I am sure someone will criticise them too.

    Valves are very cheap, I pay €35 for a valve. I have swapped out any of my shite valves for MDE valves
    Remember anything you read on the internet was probably written by some guy sitting at home in his underpants! Including this !!

    Illegitimi non carborundum

  8. #8
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    Quote Originally Posted by iain/hsm View Post
    Either way accurate or technical answers will not be acceptable by our moderator.
    There's some historical reference here I don't share, obviously...

    The valve in your photo is a rubbish copy of Itailian tat.
    Leave it to me to pick a winner. Hopefully one of your sources will come through.

    After this inspect all your diving gear and make a technical file of all the service parts part numbers and suppliers of the parts you will need for your kit. Budget 60 and spend it on a complete set of spares kit this will include a waterproof tuppaware box from Waitrose or the like and never pay more than 12 for a small tube of Chisto-Lube MCH111 oxygen lubricant. And next time you consider buying any dive kit find out first the service items prices and spares availability before you buy.
    So far I'm OK for regs/BCD/hoses, though it's a bit of a ball-ache having to play games to get Apeks service kits. This is my first foray into cylinder valves. You've already sold me a tube of lube! In this case, the cylinder was so cheap that even if I end up buying a new valve it wouldn't be the end of the world.

  9. #9
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    Quote Originally Posted by iain/hsm View Post
    You first really need to know the cylinder thread form where the 0-ring sits.
    If the cylinder is machined with a countersunk chamfer end (this uses a fat section 0-ring)
    Cylinder has a 45deg chamfer, so 'fat' it is - but how fat is that?

  10. #10
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    Quote Originally Posted by Paulo View Post
    If it were me, I would swap the valve out for an MDE one but I am sure someone will criticise them too.

    Valves are very cheap, I pay €35 for a valve. I have swapped out any of my shite valves for MDE valves
    I have wondered - potentially a tenner on bits that might or might not fit, or 35 for a whole valve. Conundrum.


 
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