P&IDs (piping and instrumentation diagram) are a schematic illustration of the functional relationship of piping, instrumentation, and system equipment components used in the field of instrumentation and control or automation. P&IDs show the connections between devices, pipes, and other process equipment. P&IDs can be created by engineers designing a manufacturing process for a physical plant. P&IDs can be used to create a model of the process, which can be used to optimize the process or troubleshoot problems. P&IDs can also be used to train operators on a new process. P&IDs can be created using various software packages, such as AutoCAD or PTC Creo. P&IDs can also be created manually using pencil and paper. P&IDs typically include the following information:
- Device symbols
- Pipe sizes and line numbers
- Process flow directions
- Instrument tags
- Pipe pressure and temperature ratings
- Pump curves
P&IDs can be very complex, depending on the size and complexity of the process. P&IDs can be simple, such as a one-page drawing of a small process, or they can be very complex, such as a multi-page drawing of a large process. P&IDs should be consistent with other engineering drawings, such as process flow diagrams (PFDs) and piping and instrumentation diagrams (P&IDs). P&IDs should be reviewed and updated regularly to ensure accuracy and consistency. P&IDs can be created using a variety of software programs, including Microsoft Visio, Autodesk AutoCAD, and PTC Creo.
