Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


CNG Repair Shop - NFPA # 52

CNG Repair Shop - NFPA # 52

CNG Repair Shop - NFPA # 52

I am working on a big truck repair facility and at one end of the building they have a single bay that is open on three sides where they will repair CNG vehicles.

It appears to be NFPA #52.

Right now I am looking at Ord Hz Group II for the sprinkler but I am not sure if that is right or not. There may be other requirements, such as detection, but for right now I am mainly concerned about the sprinkler.

Where do I go to find the correct information?

RE: CNG Repair Shop - NFPA # 52

NFPA 30A, which in turn references NFPA 13. NFPA 30A has no specific design requirements for the automatic sprinkler system in a CNG repair garage. NFPA 30A has several other requirements but nothing related to the design of the sprinkler system.

This makes sense because NFPA 13 has no specific requirements for parking garages, i.e., I can locate a vehicles adjacent to each other on the same parking row fueled by gasoline, diesel fuel, CNG, LNG, compressed H2, liquid H2, and lithium ion batteries and neither the IBC, IFC or NFPA 30A have any special fire sprinkler requirements. Other requirements like gas detection or mechanical ventilation MAY come into play but that would require further research AND a signed contract hiring me as your code consultant.2thumbsup

RE: CNG Repair Shop - NFPA # 52

You do not state the type of vehicle. Are these vehicles tank trucks on which you would repair the tanks and accessories to the tanks or are these vehicle fueled by CNG.

RE: CNG Repair Shop - NFPA # 52

Vehicles fueled by CNG.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close