Levels of Piping Design Checking

I've been meaning to write something like this for some time, so here goes. The advantage of splitting up "checking" into well-defined, project schedule-related tasks is that less-experienced people can perform some of these things during downtime while learning. One example might be that a senior checker should probably not waste time verifying if reference drawings are properly referred-to or if each deliverable has the proper contract or drawing number.

Most of the below relates to 3D projects, but much if it is useful for 2D work as well. I've also probably made some mistrakes/failed to consider some things, this was just a quick typing exercise straight from my brain and memory (both of which have been known to be sometimes faulty in the past).

And this is just a first shot, so feel free to add, ask, comment, clarify, append, whatever.

Paul

Levels of Piping Design Checking

• P&ID check Does the 3D model follow the P&ID?
• conformity check References to related documents correct? Follows company practices for presentation of information?
• reality check Ongoing verification that modeled equipment matches provided vendor drawings.
• process/hydraulics check Ensure that process group is aware of how lines are physically routed.
• stress check Not really a problem usually.
• legibility check Are computer-generated documents actually readable by the fabricator/constructor?
• database check Is what's in the database accurate? Often the database maintainers are not pipers and don't know any better.
• graphics check Have odd, "user-specific", possibly confusing, non-conventional graphics been used?
• operations check Access to equipment for maintenance, safe operation, convenience.
• Newbie check Have inexperienced modelers physically routed piping so that it *matches exactly* the P&ID?
• legacy check If something appears questionable, is there a legitimate reason, or is it because "that's what we did last time".

-sanity check
Make up your own. Received on Sat Feb 17 00:03:00 2007