Pipe Sizing Tool

[Dymalica]

Is there any pipe sizing tool for the field. Where you could just attach it to the pipe and it would tell you the size of pipe and schedule? All I could find is

http://www.pipesizer.com

, but the website looks amateur and I am not sure I want to send money without a valid website. Sometimes it is hard to tell the difference between a 3 and 2-1/2" pipe. Or how do you measure pipe sizes? Please, share your wisdom.

 

[BigInch]

Get a big wrench, put on pipe, measure distance between the claws, look at pipe table.

http://virtualpipeline.spaces.msn.com

 

[Ashereng]

A tape measure? Measure OD, ID?

"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?

 

[unclesyd]

The first website has the granddaddy of all circumferential tapes, PI Tape. Look at different sites as the prices for these tapes vary greatly.

https://www.pitape.com/Default.aspx

These are tapes for doing the same thing with a loss in precison.

http://www.perfecttape.com/tape4.htm#diatape

http://www.advantage-advertising.com/store/Lufkin/diameter%

20tape.htm

 

[TBP]

Go to:

http://www.newmantools.com/gauge/pr.htm

and check out the "Pocket Rocket". It has two scales - one for nominal pipe, and the other for actual diameter.

 

[dvd]

Stanley makes a nice 1/4" pocket tape measure with diameter tape on the back. #33-115

http://stanleytools.com/default.asp?TYPE=CATEGORY&CATEGORY=HT_TAPES_POWERLOCK

 

[GSTeng]

A cool trick is to take a string and measure the cirfumference and then get the diameter from that (circumferene=PI*Diameter). This is really useful with really big pipe like 30" and up where trying to measure the diameter directly is hard. I am assuming you don't have an open end on the pipe of course. Wall thickness on a closed pipe is not so easy, there are thickness gages out there that measure the pipe wall thickness form the outside of the pipe (they are not Cheap).

 

[abeltio]

I usually try to find a flange... all flanges have the size and rating etched on the side.
When flanges are not available then a piece of string (or wire) as GSTeng said works just fine

saludos.
a.