What does gold represent in piping systems?

Gold in piping systems typically represents steam. In many engineering systems, color coding is used to identify different types of fluids and their associated pressures. Gold or yellow is often designated for steam lines, which helps personnel quickly and safely identify the purpose of the pipes during operation and maintenance.

Using distinct colors for various fluids also enhances safety by reducing the risk of accidental cross-connections or mishandling. It is essential for operators and maintenance crews to recognize steam piping visually, as steam can be hazardous due to its high temperatures and pressures.

In contrast, specific color codes might be associated with the other options, such as high pressure air, low pressure air, or sewage, which usually have their standard color designations. This systematic approach of using color coding assists in maintaining an organized and safe work environment.