A red color on a gas meter index typically indicates what level of gas pressure?

A red color on a gas meter index typically indicates a gas pressure of 5 pounds per square inch (psi). This color-coding helps identify the pressure levels for different gas applications, ensuring that technicians and inspectors can quickly ascertain safe operating conditions.

In the context of gas systems, knowing the specific pressure levels is crucial for the proper functioning and safety of appliances. The fact that red denotes 5 psi is standardized across many systems, making it essential for technicians to familiarize themselves with these visual indicators.

Higher pressure levels, such as 7 or 10 psi, would typically use different color codes that signal a need for caution or additional security measures, whereas lower levels might not require as stringent precautions. Therefore, understanding this color-coding aids in the effective troubleshooting and maintenance of gas systems.