The proper way to measure pipe.

[swamprabbit59]

Ya but if working in the field with certain jobs you need to know the OD so you know what tools etc to use. If you just called it 2” you’d be wrong


Sent from my iPhone using Tapatalk

[Hoggslayer]

Ya but if working in the field with certain jobs you need to know the OD so you know what tools etc to use. If you just called it 2” you’d be wrong


Sent from my iPhone using Tapatalk

That's just because they had to simplify things for those field hands.

[jdg13]

In my world they're called culverts and the smallest sizes start at your largest size, just in case we're measuring

[ecallarman]

Thanks for the lesson. Even though I have been in the steel industry for 25 years, and know that 2” pipe is 2-3/8” OD and 2-1/2” pipe is 2-7/8” OD, I still sometimes reference the pipe by OD, if referring to the NPS would confuse the conversation with someone who may not be familiar with the industry standard nomenclature for pipe.

[CLR]

I sell and deal with Pipe and Tubing all the time on the Hydraulic and pneumatics side. People are always like well its just a standard thread.... There are no more standard threads in today world. i deal with about 25 different ways to seal off a fitting on a daily basis.

You really blow there mind when they put a tape measure on 1/4NPT threads and they measure roughly 1/2". They will try to tell you its 1/2NPT... Happens weekly.

I am in the metric and American hydraulics field and see this daily also. I always hear “I have a standard metric fitting.” 😂

[Dale Moser]

Take a piece of scrap to the gettin place, and buy the **** that works.

Pipe is round, tubing gots corners.

[curtintex]

I install PVC, CMP, HDPE and RCP..... from 1" to 144", I.D. is all that we ever go by.

[meltingfeather]

I install PVC, CMP, HDPE and RCP..... from 1" to 144", I.D. is all that we ever go by.

No DIP?

[Texastaxi]

Maybe, but you're also worried about how another man measures his pipe

Quackerbox for the win!

[Texastaxi]

I am a piping design manager (by day). Your assessment is correct, BUT when pipe is used as drill stem, it is usually called out by the actual OD. All process piping is called out by the NPT size, which as mentioned above, doesn't match the actual OD until you get to 14".

[Drycreek3189]

:d


[ATTACH]1072451[/ATTACH]

Priceless !!!

[Goldeneagle]

I sell and deal with Pipe and Tubing all the time on the Hydraulic and pneumatics side. People are always like well its just a standard thread.... There are no more standard threads in today world. i deal with about 25 different ways to seal off a fitting on a daily basis.

You really blow there mind when they put a tape measure on 1/4NPT threads and they measure roughly 1/2". They will try to tell you its 1/2NPT... Happens weekly.

Had a drawing come down the other day to run on my lathe. The part was .250 dia by about 4.000 long. They wanted a O.D. 1/4" NPT on the end.

[Tubby]

On the inspection side of this.... we have to be specific in pipe size reference due to the fact the total weld length determines the size of weld discontinuity allowed as per code. This is especially crucial when dealing with 2 3/8" vs. 2 7/8". We have had inspectors as well as welders refer to both pipe sizes as "two inch".

piece out!

[Backwoods101]

every type of pipe I've ever called out was classified by OD, then wall thickness and grade. drift where applicable.

OD matters when it's inside an annulus.

Yep, ID don’t matter much when fabricating. Thanks for sharing OP, knowing I have your chart at my disposal brings me piece

[Hoggslayer]

Yep, ID don’t matter much when fabricating. Thanks for sharing OP, knowing I have your chart at my disposal brings me piece

I'm glad I could bring someone a little PIECE of mind.