What color represents high pressure air in hand wheel coding?

In hand wheel coding for pneumatic systems, dark gray is utilized to represent high pressure air. This color coding is part of a standardized system that helps operators quickly identify the type of air or gas being handled by the equipment, promoting safety and efficient communication.

Using dark gray for high pressure air assists in distinguishing it from other pressure classifications or gases, which can be crucial in environments where multiple systems operate simultaneously. This color convention enables personnel to make informed decisions regarding system maintenance, operation, and safety protocols.

Color coding in industrial applications is designed to enhance overall safety and streamline operations, ensuring that anyone interacting with the equipment can instantly recognize critical information just by observing the colors used.