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Old 03-25-2010, 12:10 PM   #1
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Default Stainless Coiled or straight tubing?

Coiled 1/2" annealed stainless tubing is much cheaper than straight 6' tubes. How is it working with the coiled stainless tubing? Can it be straightened easily, or is it better to use the straight tubes (and pay much more)?


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Old 03-25-2010, 12:21 PM   #2
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What exactly are you using the tubing for?


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Old 03-25-2010, 12:23 PM   #3
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I was going to hard plumb the plumbing on a RIMS system, using swagelok fittings and tri-clamps instead of silicone tubing.
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Old 03-25-2010, 12:24 PM   #4
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From experience working stainless tubing requires tools to bend and straighten. It can be done but not without the right tools.
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Old 03-25-2010, 12:34 PM   #5
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I bought Ridgid tubing benders, but was wondering about straightening a coil. I'm getting the idea that it's probably better to bite the bullet and get straight tubes.
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Old 03-25-2010, 12:52 PM   #6
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I think the price has to do with the ease of handling between the manufacturing and retail.
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Old 03-25-2010, 01:01 PM   #7
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I bought 3 - 8ft lengths of 1/2 304 SS for about $60 shipped. I played around with shipping costs for different lengths and found this to be the cheapest.
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Old 03-25-2010, 02:02 PM   #8
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If you buy coiled, and manage to straighten it to your liking, most likely it will be out of round which will make connecting it to anything very difficult. When tubing is coiled it becomes more oval in shape.
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Old 03-25-2010, 03:15 PM   #9
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Pickles, do you remember where you got those three 8' joints of 1/2" 304 SS?
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Old 03-25-2010, 03:17 PM   #10
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You will not be able to straighten the coil into anything you would want. Just get the straight stuff.

Also, check your manual that came with your bender, for 1/2" tube, it probably recommends a wall thickness no thinner than 0.035" to avoid buckling. I didn't know this and will find out soon if I can manage with the 0.028" wall I have.


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