How to write the details for flanged pipes according to American standards
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I would like to ask: what is the correct way to write the details for the pipe connections on a ANSI flange? Should it be written as Pipe connection: φ33.7×4.5, L=114, or as Pipe connection: φ33.7 Sch80, L=114? Are there any other ways of writing it? For this type of pressure vessel, my supervisor has instructed me to follow the standards – so what is the most accurate and proper way to write it?
We will write it as follows: φ33.7×4.5 L=114. I’m more concerned about how to write the flange: -----------（Flange/Flange DN150 CL150 SO RF）? How to stamp with a steel stamp--------------------
HG/T20615-2009 Flange WN25-150 RF Sch80 – Doesn’t standard 20615 require this?
Actually, many things can’t really be considered mistakes; it’s just a matter of not following the proper formatting rules. Some companies have their own requirements, and it’s the same in all cases – I don’t know what to do
Actually, you should ask the inspection authority; things vary from place to place and depend on them. If the standards specify requirements regarding markings, following those standards will be correct. Check the ASME flange standards again – I think what you wrote is incorrect.