CNG Cylinders

Do you know that there is an expiry date (physical life) for CNG cylinders? 

Expired Cylinders are not safe for use and may cause accidents. In this regard

Please be cautious at the time of accepting any CNG cylinder from the

Vendor or check the date of cylinder being used in your vehicle.

Here is how we can check the expiry of CNG cylinders: On one of three sides 

Stems of the cylinder, the expiry date is coded alpha numerically as 

Follows A or B or C or D and some two digit number following this 

e.g. D06. The alphabets stand for 

quarters - A for March (First Qtr), B - June 

(Second Qtr), C-Sept (Third Qtr), D for December (Fourth Qtr). The 

digits stand for the year till it is valid. Hence D06 would mean December qtr of

2006.

 Safety is a part of Company’s HSES policy