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

Steamhead (in transit)

are correct.

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Stewy_2

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

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

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

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

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

thank you

Mark Eatherton

Gloat away....

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

Got pictures?

ME

Mad Dog_2

This is Steamhead's forte...oh Frank....

Mad Dog

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tim smith

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

Bob Gagnon plumbing and heating

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

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.