Copper Tube on Pipe Rack
Copper Tube on Pipe Rack
(OP)
Good Morning,
Looking to run an 1-1/2" copper line for N2 gas. Have an existing piperack that has W8 beams on 20' centers. Just wondering if the tube will sag at this span. I can find span table for copper tube filled with water but no 'gas' span tables. Thank you in advance for your assistance.
Looking to run an 1-1/2" copper line for N2 gas. Have an existing piperack that has W8 beams on 20' centers. Just wondering if the tube will sag at this span. I can find span table for copper tube filled with water but no 'gas' span tables. Thank you in advance for your assistance.





RE: Copper Tube on Pipe Rack
RE: Copper Tube on Pipe Rack
A 1 1/2" pipe at nigh on 6m will have a visible sag, but is this acceptable to you?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Copper Tube on Pipe Rack
I would go with supports at 10' for this, the risk of buckling is not fun.
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P.E. Metallurgy, Plymouth Tube
RE: Copper Tube on Pipe Rack
I can rout the pipe another way (thru an existing building) and minimize the run on the rack where the new steel is required. I'll be on the rack for 140' instead of 800'
The issue here is we have a building that needs N2 gas but not enough usage to justify its own permanent tank outside. And too many safety concerns to run off cylinders.
I appreciate all the help!
RE: Copper Tube on Pipe Rack
The existing supports would be fine for that (1.5" x 0.065" 304L).
You can use sanitary tubing (like they use for food processing), these lines go in all orbital welded.
This is welded tube made to ASTM A270.
You wouldn't need the great surface finish, standard 25Ra would be fine.
We ran all of our gas lines in SS, but then we make it
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P.E. Metallurgy, Plymouth Tube
RE: Copper Tube on Pipe Rack
RE: Copper Tube on Pipe Rack
Is there a reason you're not using carbon steel?
RE: Copper Tube on Pipe Rack