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dimension pipe tips

dimension pipe tips

dimension pipe tips

(OP)
Can anyone point me in the right direction or have to time to give me some tips to help me dimension pipe. Sometimes pipes are too high and a ladder won't reach, so I try to measure from support to support but I'm not always accurate. On the ground some pipes are just hard to get to and I'm not sure how to get the dimension of those pipes.

RE: dimension pipe tips

Safety first.
Read the iso.
Check if there's an as-built 3D-model.
Get a tapeline or ruler.
Get a higher ladder or use a scissor lift or scaffolding.
Ask the engineers for the isometrics.
Ask someone else.

RE: dimension pipe tips

Have you got a photo of what you mean?

Invent something that measures circumference easily.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

RE: dimension pipe tips

(OP)
CAD operators aren't allowed to use scissor lifts at the refinery I work at sometimes. I have a tape measure and use whatever ladder I see lying around. Guess I just need to think outside the box and be a little creative.

RE: dimension pipe tips

Sometimes I use some string with weighted ends to throw the string around the pipe to measure the OD the pipe.

Of course depends on the what the pipe is carrying....

Sometimes I can read a valve model no or flange/pipe marking which has the dia.

RE: dimension pipe tips

A long string and two plumb bobs. tie one on each end. Throw one plumb bob over the pipe. Measure distance between strings.

RE: dimension pipe tips

(OP)
sounds odd, and it helps?

RE: dimension pipe tips

I'd get a cherry picker myself, but hey; don't see why it wouldn't work.

RE: dimension pipe tips

For measuring the pipe diameter? Yeah, that would do.

For actually making ISOs? You work with what you've got: distance between supports, laser measuring tapes (not nearly as cool as a full laser scan, but much, much cheaper), eyeballing, raiding as-built isos (if they exist)...

You can only ever get so close, that's why (FFW) exists...

RE: dimension pipe tips

The whole idea of laser scanning is IT IS cheaper, if you've got a lot of pipes and structures to do.

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