On the drawing method of instrument air pipelines
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Should the instrument air pipeline (air supply pipeline) for the pneumatic control valve be drawn on the PID? If necessary, how should it be drawn? Will the diagram become too messy? It would be better to have a reference image.
P&ID diagrams may show pneumatic signal lines, indicating that the control signals are pneumatic. Do not represent the instrument air duct. A diagram showing the instrument air ducts, which is either a supply system diagram or a supply air view.
I would also like to ask: Is the air supply system diagram a separate sheet? Is it coming from the systems engineering field or the instrumentation field?
The air supply system diagram is a separate diagram. From the main instrument air pipeline to the air consumption points (pneumatic control valves, etc.), it is designed by the instrumentation team.
This post was last edited by wangjh0814 on 2019-3-23 08:32. I’ve learned something new, thank you! Could you please send a reference image? Email: 17101625@qq.com.
I’m sending you a sample image; it’s not the actual drawing.
No need, there are separate gas supply diagrams and cable layout diagrams
It is not necessary to draw it on the instrument air duct PID; it belongs to the instrument air supply diagram