Compressor Symbols Legend CAD (P&ID Screw, Centrifugal & Rotary)

Compressors

This Compressor Symbols Legend CAD sheet is a clean reference for P&ID and process schematics. It includes common compressor and related equipment symbols used in utilities, HVAC/process plants, and industrial piping diagrams—so your drawings stay consistent and easy to review.

The legend typically includes symbols for:

  • General compressor (multiple symbol styles)

  • Centrifugal compressor (several variations)

  • Rotary compressor (and rotary compressor with silencers)

  • Screw compressor

  • Piston compressor

  • Axial compressor

  • Turbo compressor

  • Diaphragm compressor

  • Liquid ring compressor / vacuum pump style symbol

  • Air compressor and AC air compressor

  • Compressor silencers

  • “Selectable compressor” symbol for generic equipment blocks

Use this CAD legend for:

  • P&ID drawings, utility schematics, and compressed air systems

  • Standardizing symbols across multi-discipline projects

  • Drafting libraries and quick QA checks for symbol consistency

  • Faster documentation for mechanical/process teams