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  1. #1

    Anyone know there pipe fittings

    Trying to get a threaded connector for this check valve
    It reads 2”union check valve on the casing
    Made by flo control inc
    I’ve bought 2 fittings so far none fit it’s getting expensive
    The 1 on left is waterways 2” and the other 2.5”


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  2. #2
    Senior Member Rank = Gosai Scorchio's Avatar
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    You could use rubber connectors.
    put ptfe tape in the threads and use rubber straight connectors to connect your pipework.

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  4. #3
    I thought about that but not sure if they are ok for air?
    the check valve sits just under the blower on a bead filter
    cheers

  5. #4
    Senior Member Rank = Gosai Scorchio's Avatar
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    If you seal the threads with PTFE then I cannot see any reason they won't work.

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  7. #5
    Might give it a go
    only problem I can see is the mechanical strength the blower is heavy and may sway about a bit

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  9. #6
    Senior Member Rank = Nanasai Handy Kenny's Avatar
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    Even rubber connectors are going to struggle to make an airtight seal on the threads of that. I would suggest grinding off all of the threads first then going for a Flexseal EPDM connector which is much more supple than many of the cheaper variants you will see with a high PVC content.

    Kenny

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  11. #7
    Extreme Koi Member Rank = Gosai Andymadd's Avatar
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    Is this from an Advantage bead blower? I have the same check valve on mine and it was leaking. I don't know if yours is the same but it seems to be the centre stem gets wear in does not centre properly. I disassembled mine and rotated the stem 1/4 turn and it seems fine now.

    Don't know if this helps

    Andy

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  13. #8
    Senior Member Rank = Gosai Scorchio's Avatar
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    Quote Originally Posted by Handy Kenny View Post
    Even rubber connectors are going to struggle to make an airtight seal on the threads of that. I would suggest grinding off all of the threads first then going for a Flexseal EPDM connector which is much more supple than many of the cheaper variants you will see with a high PVC content.

    Kenny

    Thats why I suggested using PTFE tape to cover the threads.
    You can twist the PTFE together between your fingers which makes it like a thread,
    Wrap this in the grooves of the threads then wrap flat PTFE tape over.
    This I think should be fine with a flexible rubber connector.

    If you grind the threads off there's no going back at least with the PTFE you can take the PTFE off if it doesn't work.

  14. #9
    Thanks for all the suggestions
    I think I’ve sussed it
    The valve will take a 2” solvent socket on the inside which still allows the valve enough clearance to operate I can then add a union or whatever I decide
    Only problem I can see is like grinding the threads off there’s no going back


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  15. #10




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  16. #11
    Yep it's from an advantage bead I've tried to find a replacement valve but no joy

  17. #12
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    if you want to know if it's a BSPP thread, without having a BSPT fitting to hand,
    you can i.d them through measurement.
    tricky but can be done if you have a vernier caliper?
    2" BSPT male thread is 59.614mm
    pitch looks about right but hard to tell from a photo

    https://www.pipefittingsdirect.co.uk/contents/en-uk/BSP%20Identification1.pdf

    Anyone know there pipe fittings-screenshot_2020-04-29-bsp-identification1-pdf


    pipe fittings usually have multiple ways of connecting due to the rough arsed pipefitters that have to bodge things together in tight corners ect...
    most parallel union ended valves can be bodged into taper threaded BSPT fittings.

    there are exceptions and control gear companies rather than pipe manufacturing companies could be one.

    but solvent welding could be the easy way round it....
    Attached Images Attached Images
    Last edited by davethefish1; 29-04-2020 at 10:34 AM.

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  19. #13
    Thanks for that Dave
    The problem I’ve got is finding a union the right size
    I’ve bought a 2 1/2 and a2” one is too big the other too small so guessing I need a 2 1/4 but can’t source one?
    Tried swimming pool/hot tub dealers no joy might be manufactured just for this valve?
    Bit difficult not being able to go to shops surely most fittings are off the shelf? Would be nice to get the right bit


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  20. #14
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by Lucky View Post
    Thanks for that Dave
    The problem I’ve got is finding a union the right size
    I’ve bought a 2 1/2 and a2” one is too big the other too small so guessing I need a 2 1/4 but can’t source one?
    Tried swimming pool/hot tub dealers no joy might be manufactured just for this valve?
    Bit difficult not being able to go to shops surely most fittings are off the shelf? Would be nice to get the right bit


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    that looks inbetween BSPT sizes...
    some pipe fitting manufacuters use the same size unions on thier valves,
    so you can swap them out without removing solvent welded fittings.
    if it had been Gfisher or Astore ect.. you'd have probably got a part.

    new 2" check valves aren't cheap £60 odd!

    if you cant get an imperial size to fit try a metric?
    but you'd need to tote it along to a supplier and in the current situation not really possible...

  21. Thanks Lucky Thanked / Liked this Post
  22. #15
    Yep getting expensive spent nearly £25 on the 2 unions that don't fit
    ive been ordering the American threads and think the are right
    gonna bite the bullet and adapt the union face plate I have then glue
    i will be able to remove the valve as it sits above a double union ball valve and a union that connects the blower
    thanks for your help

  23. #16
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by Lucky View Post
    Yep getting expensive spent nearly £25 on the 2 unions that don't fit
    ive been ordering the American threads and think the are right
    gonna bite the bullet and adapt the union face plate I have then glue
    i will be able to remove the valve as it sits above a double union ball valve and a union that connects the blower
    thanks for your help
    i was just thinking did you order british imperial pipe or the american schedule 40?

    i think the schedule 40 american inch pipe sizes, are different to uk inch sizes...

    maybe the fitting is for a uk imperial 2" union?

    i know pressure plastic has so many different Table and DIN ratings and sizes ect....
    are there other fittings on the filter that state what type they are?

 

 

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