Luoyang Institute pipeline grade code
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Question: What do 2B5S1, 3B4S1, 5B5S1A, 8N1S1, 8D2S1R, and 9R1S1R mean in the pipeline annotations of the PID diagrams at Sinopec Luoyang Design Institute? Thank you!
These should be the pipe grade specifications established by Luoyang Institute itself… including the material and pressure class… You can understand this by referring to Luoyang Institute’s pipe grade table
Or check the PID homepage for any explanations regarding grade codes.
Your grade format is a bit unusual; usually, I’ve seen formats like 2B5, 3B4, etc., where the first digit represents the pressure grade, the second digit denotes the material, and the third digit is the sequence number
https://bbs.hcbbs.com/thread-2818657-1-1.html Go and take a look
Find a \"Piping Grade Table\" for the Luoyang Branch and share it
The pipeline material grade specifications state:
Not bad; it’s easy to understand at a glance for the Luoyang branch
Not bad; it’s easy to understand at a glance for the Luoyang branch
After all, it is a established large design institute with complete basic information