How is insulation represented in piping drawings?

Insulation in piping drawings is commonly represented through a dashed line or specific shading. This method provides a clear visual delineation of the insulated sections of the pipework without obscuring the essential details of the piping system. The use of a dashed line or shading allows the viewer to quickly identify where insulation is applied, which is crucial for understanding thermal performance, energy efficiency, and safety considerations related to temperature control within the system.

This representation also helps differentiate insulated piping from non-insulated sections, maintaining clarity in the overall design. Various drawing standards may dictate how insulation is represented, but the use of dashed lines and particular shading techniques is a widely accepted practice in engineering drawings.