Chinese GB Standards for Process and Instrumentation Diagrams

GB/T 2625

GB/T 2625 covers graphical symbols and letter codes used in process measurement and control flow diagrams in China.

It was published in 1981, and China's national standards platform lists its status as current.

Same equipment, different drawing convention

A pressure transmitter, valve or controller is the same physical component whatever standard the project uses. What can change is how it is drawn, identified or connected on the document.

That is why InduDraft stores the engineering object separately from how it is drawn. The GB profile is available today; GB-specific symbol verification is in progress, so shared InduDraft symbols are used meanwhile. See InduDraft's GB P&ID editor.