Speedfit BPEX or Speedfit Polybutylene

Discussion in 'Plumbing and Central Heating' started by JohnL24, 23 Feb 2020.

  1. JohnL24

    JohnL24

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    Hello all,

    I plan to move my radiator to the other side of the room and existing piping is in speedfit under the floor. When looking to buy additional pipe I am presented with two options.
    Screenshot_2020-02-23 JG Speedfit 15 mm 25 m Pipe Plumbing Screwfix com.png

    Which one would the better choice and why? The Polybutylene is the layflat version is that easier to bend and work with?

    Thank you :)
     
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  3. SandyLyon

    SandyLyon

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    They are two completely different types of plastic and you can use either.
    The PEX pipe is far more rigid and if using from a coil it can be difficult to use as it always wants to return to its coiled state.
    Polybutylene is far more flexible and the “Layflat” is much easier to uncoil and use,
    Personally I would use the Polybutylene, but they will both do the job.
     
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  4. JohnL24

    JohnL24

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    Thank you :) That's exactly what I wanted to know.
     
  5. Dangee

    Dangee

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    PB all day long!
     
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  7. gasbanni

    gasbanni

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    I have to disagree with both the other replies .....You should use barrier pipe ....it prevents oxygen passing through the pipe wall and helps preserve the rads in your heating system. Not using barrier means your rads can corrode internally quicker !!!!

    On heating systems barrier pipe always !! The other pipe is ok on hot and cold service pipework.
     
  8. JohnL24

    JohnL24

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    Looking at their website it says
     
  9. Madrab

    Madrab

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    Yup, both of the JG pipes BPEX and PB are barrier pipe. One's just a softer material allowing it to be layflat.
     
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  10. SandyLyon

    SandyLyon

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    Both the Speedfit offerings that the OP was looking at are Barrier pipe, he was asking the differences between them which have been pointed out, so with them both being barrier that wasn’t one of the differences.

    You are correct in saying that Barrier pipe should be used on central heating pipe work.
     
  11. DIYnot Local

    DIYnot Local

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