Tman asks about "acceptance criteria." I'm not sure what that means. Why wouldn't you accept a dog leg piping arrangement? Personal or plant preference I presume.
As to pennpiper's post, I take the term to mean a change in direction considerably less than 90degrees as in a "L". Maybe I...
Tell the truth. You might not get any points for your answer, but dancing around the truth will deduct points.
My gut take from your short post is that you need to hone your skills at your present job so that you have credible answers to the teamwork and project deadline questions. If you are...
Yes.
- Steve Perry
This post is designed to provide accurate and authoritative information in regard to the subject matter covered. It is offered with the understanding that the author is not engaged in rendering engineering or other professional service. If you need help, get help, and PAY...
Does the old WPS cover the new P-number?
- Steve Perry
This post is designed to provide accurate and authoritative information in regard to the subject matter covered. It is offered with the understanding that the author is not engaged in rendering engineering or other professional service...
I'll retract the question. I've been away from B31 too long, sorry!
B31.1 explicitly shows that E_h should be applied for reaction load calculations. Should have looked before I lept.
Does cryogenic cause as much contraction as steam does expansion?
It's about the difference in temperatures from the installed temperature. -80C is going to cause roughly the same change in dimensions from a 20C reference point as would +120C. But you can only go so low, whereas steam at 575C...
I've often used the latest and greatest version of B31 when doing new piping work in an old facility, so long as the owner did not object.
B31 codes have generally grown less conservative and material properties have become more consistent. There is a cost advantage to using the new codes. In...
Well then...
Why?
- Steve Perry
This post is designed to provide accurate and authoritative information in regard to the subject matter covered. It is offered with the understanding that the author is not engaged in rendering engineering or other professional service. If you need help, get...
Is there anything about the routing that would lead to out of plane bending? Are these at all connections?
- Steve Perry
This post is designed to provide accurate and authoritative information in regard to the subject matter covered. It is offered with the understanding that the author is not...
It's not stupid if it works, but your boss's opinion of what is stupid holds more weight than your opinion.
If it doesn't work, just be mindful of how you present the improvements. Some bosses have an irrational emotional attachment to their masterpiece/piece of crap spreadsheet.
From a...
Clamp-on shoe.
- Steve Perry
This post is designed to provide accurate and authoritative information in regard to the subject matter covered. It is offered with the understanding that the author is not engaged in rendering engineering or other professional service. If you need help, get help...
SRUTGU,
If you use a 3D design software (e.g. SmartPlant, AutoPlant, etc) the software developer most likely had some commodity code schema delivered with the software. Look into adopting that before you venture too far down the path of making your own.
There are commercial software solutions...
I'm on the EPC side so I don't get to see much of the aftermath. One coal plant I visited had a small mountain of worn-through small bore pipe that they have removed from service over the last several decades. The story is it came from small bore condensate and blowdown lines made of CS...
The ASME B31 codes include a nominal chemical composition of the materials in Appendix A. Otherwise, there are a number of pipe material cross references available on the web, pipe suppliers, etc.
ASTM A335 P22 - Pipe
ASTM A182 F22 - Forged
ASTM A234 WP22 - Wrought
Beware the class...
