oxygen piping in building 1

[rob3577]

Hmmm. I posted this 2 days ago and now I can't find my thread. Am I that dumb today?

Anyways, we plan to install a bulk LOX(liquid oxygen) tank on site. I know what the codes are about separation of the tank from the building, but I can't find any codes or regulations about running the piping in the building. We plan to install a line into the building to oxygenate a process water stream.

Are there any codes regarding piping the oxygen into the building? The only thing I see is NFPA 51 for oxygen-fuel welding cutting, etc, but that is not what we are doing. I don't have access to NFPA51 so I don't know exactly what it says either.

Does anyone have insite to this issue?
Thank you

 

[stookeyfpe]

If the oxygen is for a medical gas system one should apply NFPA 99. If the oxygen is for use as an industrial gas, apply the requirements in NFPA 55.

 

[rob3577]

It is for agricultural use.
Does NFPA 55 say anything about piping the gas? I'm reading the scope and it says:
1.1 Scope. 1.1.1 Applicability. This code shall apply to the installation, storage, use, and handling of compressed gases and cryogenic fluids in portable and stationary containers, cylinders, equipment, and tanks in all occupancies.

I don't need any info on storage in portable or stationary containers, cylinders, etc. Do you have access to it? Can you tell me if it discusses what we are discussing? I'm hesitant to pay for NFPA 55 until I know that it contains pertinent information.
Thank you

 

[stookeyfpe]

If you go to the NFPA website, you can register on-line and review it at no cost. You can't download or print for free.

 

[rob3577]

Okay so I've perused that section and looks like oxygen piping is supposed to be installed per certain sepecifications. No problem.

Now I'm wondering if installing the oxygen piping would require any sort of county permitting or if it can just be handled by a "qualified" installer?

I'm also unsure if having the piping in the building triggers any sort of fire protection needs. This is a 20,000 s.f. class BII, use S-2 building with no fire protection.

 

[stookeyfpe]

If you're in the US, and your building is located in a jurisdiction that adopts the International Fire Code, it's highly probable you will need construction permits. Contact your local fire official.

 

[rob3577]

I'll see if I can get hold of someone.
What kind of construction permits though. Never heard of permits for process piping, but then again I'm no expert. I spoke to an installer for the local industrial gas supply place and he mentioned certain standards, but nothing about permits for the work.
Yes we are in the US.

 

[stookeyfpe]

It's a requirement of the IFC. However the jurisdiction may not require a permit.