What color indicating hand wheels represent refrigeration systems?

In the context of refrigeration systems, hand wheels that are dark purple indicate the presence of refrigerant or components that are involved in the refrigeration cycle. The use of color codes is an important safety measure in engineering and maintenance, helping to easily identify system types and their functions.

Dark purple specifically signals that the component or system is related to refrigeration, thus allowing technicians and engineers to quickly recognize and handle those systems with the appropriate care and procedures. Each color has been standardized to ensure consistency across different industries, making it easier for professionals to communicate and operate safely.

Light purple, dark blue, and striped black and yellow represent different systems and functions unrelated to refrigeration, which emphasizes the importance of using the correct color identification for specific applications.