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Im very proud of my lateset project and would like to gloat

are correct.

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  • Stewy_2
    Stewy_2 Member Posts: 83
    and of course ask a question

    I reduce the number of sections in a screw type radiator. It wasn't easy, had to make my own 1" close nipple but I got it. Can the push nipples be retro fitted into screw type radiator? Got two more to do and they take a while.
  • Brad White_203
    Brad White_203 Member Posts: 506
    Not sure I follow...

    Push nipples have a machined/milled finish and taper, no threads. They rely on a friction fit under compression in order to seal.

    Threaded sections are threaded, I have no idea how one would mix the two, unless I mis-understand what you are asking.
  • Stewy_2
    Stewy_2 Member Posts: 83
    can a screw type connector niple be replaced by a push nipple

    in a screw type rad. So if I took apart a screw type rad, could I reassemble it with push nipples?
  • Phil_17
    Phil_17 Member Posts: 177
    Highly doubt it...

    Unless you plan to remachine the nipple interfaces in the sections (i.e. bore out the threads with a smooth tapered surface to match the push nipples). You'll never get the smooth push nipple to seal against the threaded surfaces
  • Brad White_203
    Brad White_203 Member Posts: 506
    Phil is right

    Two different beasts.

    Push nipples are ground together with matching dies and reamers so that the fit is very close. The taper is precise. Often a series of dies and reamers would be used together for x number of units then discarded or re-machined to maintain quality control.
  • Stewy_2
    Stewy_2 Member Posts: 83
    thank you

  • Mark Eatherton
    Mark Eatherton Member Posts: 5,839
    Gloat away....

    Because if you gloat toward the PONPC, your HEAD might pop.:-)

    Got pictures?

    ME
    It's not so much a case of "You got what you paid for", as it is a matter of "You DIDN'T get what you DIDN'T pay for, and you're NOT going to get what you thought you were in the way of comfort". Borrowed from Heatboy.
  • Mad Dog_2
    Mad Dog_2 Member Posts: 3,471
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  • tim smith
    tim smith Member Posts: 2,459
    Stewy, was this an old ornate column style???

    I have been contemplating trying to take one apart and reassemble with new r/l nips. Just wondering if this is what you did. Thanks, Tim
  • Why are you

    Removing a section? wouldn't it be easier to use an adjustable vent or a TRV??

    Thanks, Bob Gagnon

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  • Stewy_2
    Stewy_2 Member Posts: 83
    It was an ornate rad, Ill put up pics.

    What I did was carefully cut down through the thread nipple between section 3 and 4 and the last and second to last section (I needed a 4 sec rad for the space). Then because the old nipples were so corroded into the sections, I had to chisel them out. Next I had to find a 1" long 2" nipple, NOT possible. I had the nipple cut but because of the small size and weaker threaded material, the cut end couldn't be beveled so I has the spend a while on the grinder beveling it myself. When I got it just right, I put one end into the 3 section and then spun the single section on it till it was tight and there I had it.
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