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Discussion Starter · #1 ·
Wondering how many of you out there have seen or needed to use a5" Chase nipple, locknut and bushing? And is there any sites to possibly get a used one, any knowledge of cost? Thank you.
 

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I've never had a need for one, but I just went online with my main supply house and I could have one next day for almost 300 bucks. I think I'd find another way. For very large openings, instead of using a chase nipple, I use QuickEdge type molding. Panduit, T&B, and many of the majors make something similar.

 
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Damn, you would be tightning that badboy with a hammer and a beater.
 

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Discussion Starter · #4 ·
Thanks for the info! I also looked online and found one with 2 locknuts and plastic bushing for around $300. That's crazy that they make them available. I was curious all of sudden because I came across a full setup that I had demo'd out of an old CT cabinet years ago. It's in perfect condition.
 

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Why not just use allthread? I got a hog. I'll only charge you $300...........
 

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Running thread nipples aren't technically legal.
let me guess, UL white book? the same one that prevents us from using a threaded coupling, and EMT connector and LFMC connector to transition raceways, but we do it anyway.
 

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let me guess, UL white book? the same one that prevents us from using a threaded coupling, and EMT connector and LFMC connector to transition raceways, but we do it anyway.
Nope. The NEC. In several places.
 

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Pipe taper. Running thread doesn't taper.
 

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Pipe taper. Running thread doesn't taper.
So a close nipple would be compliant, because it has a taper? The locknuts dont care, actually, its more difficult to get the locknuts to set on a taper.
 

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So a close nipple would be compliant, because it has a taper? The locknuts dont care, actually, its more difficult to get the locknuts to set on a taper.
I didn't write the code. Nobody trusts me . Even Miller wouldn't make me a moderator.
 

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Close nipples actually have taper toward the center.

There is UL listed running thread conduit that you can cut a hunk off of. Picoma (Beck) makes some. I'm just not sure how you compliantly use it.

I think the main objection to running threads came in the pre-EMT days, when installers would run a ton of thread on a pipe to spin a coupling on the whole way, and then center it up when the next piece was butted up to it, to avoid using an Erickson coupling.
 

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Close nipples actually have taper toward the center.

There is UL listed running thread conduit that you can cut a hunk off of. Picoma (Beck) makes some. I'm just not sure how you compliantly use it.

I think the main objection to running threads came in the pre-EMT days, when installers would run a ton of thread on a pipe to spin a coupling on the whole way, and then center it up when the next piece was butted up to it, to avoid using an Erickson coupling.
That makes sense. Now I understand why I saw that very same thing on a rigid conduit run that was installed in a very old building. I seem to remember it was 3", so im sure that would have been a very expensive erickson.
 
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