Electronic Measuring Device for Valve Face-to-face distance in a gas plant

[GD2]

Dear Members,

I was wondering if you know of any Ex rated electronic measuring device for valve Face-to-Face/end-to-end distance in a oil and gas plant?
Appreciate your help.

GDD
Canada

 

[LittleInch]

GD2 - You should know better than to post in two forums at the same time?

But what's wrong with a tape measure?

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

 

[IRstuff]

And there are laser equivalents of tape measures if you want to get fancier. The cheapo LDMs from eBay often have mm-resolution, although accuracy is a bit sketchy. Nevertheless, that's most a matter of money, so pay more for a name brand with better bonafides for accuracy.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

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[EdStainless]

It really depends on the dimensions. Are you working <100mm or more like 500mm?
We were working under 200mm and used Mitutoyo ID gages.
Like these:

https://www.mitutoyo.com/products/s.../2-contact-bore-gages/bore-gage-standard-3-8/

https://www.mitutoyo.com/products/s...gages/internal-measurement-dial-caliper-gage/

We looked at various optical (laser) units but found them too particular about surfaces and ambient lighting to be useful in the field.

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P.E. Metallurgy, consulting work welcomed

 

[1503-44]

For me that's a tape measure and a flashlight.

A black swan to a turkey is a white swan to the butcher ... and to Boeing.