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The standard for chemical engineering PID design legends is...

2017-02-28 View Original

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As the title says. Is there a **uniform standard** for chemical process PID design diagrams? What is the standard number? Why do different design institutes use different ones?/
Reply #2 2017-02-28
Each unit has its own design conventions, and the legend symbols in the standards are not complete either; therefore, each follows its own approach. Refineries follow SH/T 3101-2000 \"Legend for Refinery Process Diagrams\", while the chemical industry uses HG 20559-1993 \"Specifications for the Design of Piping and Instrumentation Diagrams\", HG 20559.3-1993 \"Graphic Symbols for Pipes and Fittings in Piping and Instrumentation Diagrams\", and HG 20559.4-1993 \"Pipe Numbers and Labeling in Piping and Instrumentation Diagrams\"
Reply #3 2017-02-28
Different units have different design legends, and there are also those based on the supplier of the purchased process package
Reply #4 2017-02-28
Checking the chemical process design manual will give you most of what you need to know
Reply #5 2017-02-28
The compound has its own set of rules, and the second floor is really great
Reply #6 2017-03-01
I work in a design institute, and the answer on the second floor is completely correct. As an additional note, the PID design in the chemical industry also refers to \"HGT 20505-2014 Functional Indicators and Graphic Symbols for Process Measurement and Control Instruments.\"
Reply #7 2017-03-01
The person upstairs is very professional, and their profile picture is beautiful
Reply #8 2017-03-01
Is it about me?! O(∩_∩)O~ Thank you
Reply #9 2017-03-01
It has to be you. But I don’t dare to reply, afraid it might be considered spam. It’s terrible to have points deducted; we’re already so poor.

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