When Is 1/4" Not 1/4"?
#11
  Re: (...)
when its plumbing. At the BORG was holding a water line that has 1/4" fittings for the fridge. Yet it doesn't fit any of the 1/4" fittings in the plumbing department. The fitting broke on the line attached to the fridge, I was trying to replace it. I hate plumbing. 1/4" NPT is not the same as the 1/4" fittings on a refrigerator.
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#12
  Re: When Is 1/4" Not 1/4"? by crokett™ (when its plumbing. ...)
Shouldn't that be 1/4 " compression, not NPT?
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#13
  Re: Re: When Is 1/4" Not 1/4"? by Mr_Mike (Shouldn't that be 1/...)
yep, compression on the fridge....
-who?
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#14
  Re: Re: When Is 1/4" Not 1/4"? by Mr_Mike (Shouldn't that be 1/...)
Mr_Mike said:


Shouldn't that be 1/4 " compression, not NPT?




Why is there a difference? Why can't 1/4" just be 1/4"? Either a) make all plumbing fixtures use the same fittings, or b) standardize on them so that 1/4" is universal.
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#15
  Re: Re: When Is 1/4" Not 1/4"? by crokett™ ([blockquote]Mr_Mike ...)
Different fittings for different applications.

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#16
  Re: Re: When Is 1/4" Not 1/4"? by crokett™ ([blockquote]Mr_Mike ...)
Different material. Npt is pipe thread heavy steel pipe. The fridge uses copper or plastic. The standard is the interior pipe diameter not the construction of the pipe.
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#17
  Re: Re: When Is 1/4" Not 1/4"? by crokett™ ([blockquote]Mr_Mike ...)
crokett™ said:


[blockquote]Mr_Mike said:


Shouldn't that be 1/4 " compression, not NPT?




Why is there a difference? Why can't 1/4" just be 1/4"? Either a) make all plumbing fixtures use the same fittings, or b) standardize on them so that 1/4" is universal.


[/blockquote]

Pipe threads are tapered

compression threads are not tapered and much finer.

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#18
  
It doesn't make it any less annoying. the other complication was the line on the fridge is 5/16" OD. No one has 5/16" fittings locally not even the pro shops. I ended up with a 5/16" to 1/4" reducing coupling and a universal plastic line that has a 1/4" compression fitting on it. It's not pretty but it doesn't leak.
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#19
  Re: Re: When Is 1/4" Not 1/4"? by crokett™ ([blockquote]Mr_Mike ...)
crokett™ said:


[blockquote]Mr_Mike said:


Shouldn't that be 1/4 " compression, not NPT?




Why is there a difference? Why can't 1/4" just be 1/4"? Either a) make all plumbing fixtures use the same fittings, or b) standardize on them so that 1/4" is universal.


[/blockquote]

It may be a pipe/tubing thing. "pipe" diameters are nominally inside diameter (very nominally sometimes) while "tubing" diameters are based on outside diameter.
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#20
  Re: Re: When Is 1/4" Not 1/4"? by JGrout ([blockquote]crokett™...)
JGrout said:



Pipe threads are tapered




Not all pipe threads are tapered. There's also NPS threads which are straight. They're used on conduit
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