Recently I specified Class #150 gate valve with butt weld type(no flg) in CAESAR II. Automated end to end dimension was 330mm, but B16.10 says it's 457mm for B/W type valve.
Any experience from forum members?

The current CAESAR II Valve/Flange database references flanged valves, it does not provide data for welded-in valves.
The middle column enter of "no flanges" indicates that the mating weld neck flanges are not included in the total assembly weight & length. It does not indicate a welded rigid element.

Good to know Mr.Dave,

I guess the weight could be differ among the vendors, but any plan to add welded type rigid element? That would be very helpful.