What kind of piping for Nitrogen gas?

[tradosaurus]

I have a bunch of Nitrogen bottles that are piped to a manifold. I have to pipe from the manifold to about 4 control panels 50 ft away.

The control panels will be used to regulate the Nitrogen for fire extinguisher filling.

Pressure from nitrogen bottle manifold about 1,200 psig. Pressure to fill extinguishers about 250 psig.

Thank you.

 

[racookpe1978]

In door, outdoor? What is your company's/your client's specification?

Sounds like you have low flow expectations - what is your flow calc - are you are going to filling the extinguishers by hand or automatically? Or are you going to be pressurizing the bottles with the N2, and need high flow to push the agent out of the cannisters with the N2 flow?

 

[LittleInch]

If your flow is relatively low then you can use suitably rated instrument tubing or carbon steel #600 pipework to ASME B31.3

My motto: Learn something new every day

Also: There's usually a good reason why everyone does it that way

 

[chicopee]

Is the pressure reducing valve on the manifold?

 

[gr2vessels]

My two cents;- use the same piping as used between the bottles and manifold.
Howzat?