Do the sampling lines in the PID diagram, as well as the bypass lines for control valves and the vent or drain lines on the pipes, need to be numbered? ?
Thread Content
Do the sampling lines in the PID diagram, as well as the bypass lines of control valves and the vent or drain lines on the pipes, need to be numbered? ? Based on what standard? ? Thank you!
Sampling pipelines generally need to be numbered (A-XXXX), while bypasses, drain lines, and vent lines usually do not require numbering.
When producing ISO, just wrap the pipeline around it.