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What type of couplers are these?

Discussion in 'Plumbing and Central Heating' started by Strontium Dog, 15 Apr 2020.

  1. Strontium Dog

    Strontium Dog

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    Hi,
    Probably a numpty question, but can anybody tell me what sort of connection or coupling is pictured below please.

    [​IMG]

    [​IMG]
    Background is, I've had to replace a leaking handbasin mixer tap in my downstairs WC. The new tap comes with a fixing kit and flexi tails.

    I'm planning on using a pipe cutter to sever the existing painted copper feed pipes then attach the tails to a 15mm isolation valve on each feed. I'm just curious about what the existing double sleeve couplers are. I haven't seen this type before. Anybody know?

    Thanks in advance.
     
    Last edited: 15 Apr 2020
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  3. Urban Plumbers

    Urban Plumbers

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    this is your standard and used everywhere end feed coupler. It is a soldered connection
     
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  4. Strontium Dog

    Strontium Dog

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    Many thanks. I thought it was a 2 piece coupler, but I see it's just crimped a bit in the middle.

    I guess I can cut them off and connect the tap flexi tails via a 15mm coupler?
     
  5. Urban Plumbers

    Urban Plumbers

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    it is a grove in the middle so that the pipe stops half way through when you push it before soldering. Cut below or above those couplers (depending how long your tap flexes are) and use either isolation valves are 15mm compression coupler and remove nut and olive other end and install your flexi connectors there.
     
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  6. Strontium Dog

    Strontium Dog

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    Thanks again for that mate. Much appreciated
     
  7. just pumps

    just pumps

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    Standard iso valve uses 2 olives so both ends have a lip for the olives, if you tighten the flexi with the rubber washer to much it can cut into the washer. Either buy iso valve with one flat end for this purpose or file one end flat before using.
     
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  8. Strontium Dog

    Strontium Dog

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    As luck would have it, I saw these in the local hardware store.

    [​IMG]

    As you say, they've got a flat end for the tail connection.

    As the feed pipes are quite close together, I was thinking I might have stagger the height of the couplers. I'll let you know how I get on.
     
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  9. Strontium Dog

    Strontium Dog

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    Went alright, no awards for precision, but no leaks, wife is happy.

    Thanks for the help. Cheers!
     

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  11. just pumps

    just pumps

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    Trust that there are no kinks in the flexi`s.
     
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  12. Strontium Dog

    Strontium Dog

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    There's a bit of a loop, but no kinks.
     
  13. denso13

    denso13

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    Nice, looks good.
     
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  14. lostinthelight

    lostinthelight

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    Very careful bit of paint stripping not to extend beyond the nut:)
     
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  15. Strontium Dog

    Strontium Dog

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    The pipe cutter tool stripped the old paint off quite nicely as it went round. It left a nice bit of bare copper for the olive to sit on

    I even added a bit of PTFE around the olive, controversial!
     
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  16. Hugh Jaleak

    Hugh Jaleak

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    PTFE around the olive will never hurt, it's those who wrap the threads on compression joints with PTFE. They dont realise the thread doesn't make the seal, the olive does!
     
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