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1/2" and 15mm

  • 30-10-2014 12:47pm
    #1
    Wearb
    Moderators, Home & Garden Moderators Posts: 6,304 Mod ✭✭✭✭


    I am going to change some rad valves. Are 15mm fittings compatible with old 1:2" instantor fittings? If not, how do I get around it?

    Please follow site and charter rules. "Resistance is futile"



Comments

  • #2
    kay 9
    Registered Users, Registered Users 2 Posts: 2,672 ✭✭✭kay 9


    They'll work but not ideal. Alot of rad valves are 15mm anyway.


  • #3
    scudo2
    Closed Accounts Posts: 2,008 ✭✭✭scudo2


    Wearb wrote: »
    I am going to change some rad valves. Are 15mm fittings compatible with old 1:2" instantor fittings? If not, how do I get around it?

    Most valves sold in Ireland are 1/2"

    If 15mm then change compression ring to 1/2"

    Often easier to get a plumber as their use to doing it.


  • #4
    Wearb
    Moderators, Home & Garden Moderators Posts: 6,304 Mod ✭✭✭✭Wearb


    When I remove the old rad valve I will be left with a 1/2" olive and nut on the pipe. Will the new 15mm compression end fit onto the existing olive and nut?

    Please follow site and charter rules. "Resistance is futile"



  • #5
    anthonyos
    Registered Users, Registered Users 2 Posts: 1,019 ✭✭✭anthonyos


    Wearb wrote: »
    When I remove the old rad valve I will be left with a 1/2" olive and nut on the pipe. Will the new 15mm compression end fit onto the existing olive and nut?

    It will do and if there is a small difference when you tighten the nut the olive will move and seal up in to the valve


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