Although long-time maintenance and pipefitter personnel here do not recall using it, one of two carbon steel and a single galvanized steel company piping specifications use Class 125 pipe.

QUESTIONS
Do you know of any out-of-the-box CADWorx spec files that include Class 125?

Is it necessarily difficult to set up this Class 125 based on other classes?

Do you have a Class 125 spec that you could share?

I have never heard of class 125 piping. It should be very similar to the 150, I would used that as a basis.

Hello V.!

I see. I thank you and will follow up with my engineering manager about this specification soon.

Specs are typically built on the basis of flange ratings, so a CL 125 spec is quite possible (I've seen one or two). In most cases an already-existing CL 150 spec is used instead, while over rated the commonality of components outweighs that.

I've also seen a reduction in use of galvanized piping, at least for process plants. Aside from not being able to weld without preparation and precautions, having to maintain a separate stock like the CL 125 flanges and gaskets, just adds complications. See if engineering can accept using an existing CL 150 general service spec instead.

Being an industry newcomer, I appreciate this type of general insight and your suggestion given.

Luckily for me, I rub shoulders, if only for a few more months, with an experienced piper and also enjoying with a very experienced contract piping designer. They will be sorely missed as I progress.

The piper said galvanized piping is mostly threaded. He related that the gases that it gives off when welded is a serious health hazard.