Safety First: How to Identify Your Gas Valve Date Code

Our OPD valves include a pressure relief device. CGA S-1.1 requires replacement or requalification of the pressure relief device within 10 years after the date of manufacture. Each valve is stamped with a 4-digit Date Code to help you track its service life and plan for a timely replacement.

How to read the code:
The production date of the valve is indicated as shown in the image

  • First 2 digits: The Year (e.g., "26" = 2026)
  • Last 2 digits: The Week (e.g., "12" = 12th week of the year)

Date: 12th week of 2026

2612

If the code is "2612", your valve was manufactured in the 12th week of 2026.

Date: 3rd week of 2015

1503

If the code is "1503", your valve was manufactured in the 3rd week of 2015.

*For service or replacement, please contact the original provider of your gas equipment to ensure compatibility and safety.