[labnetwork] Bending coaxial

[Paolini, Steven]

Matthiew,
  Bending coaxial tubing is not only a standard procedure but the recommended one. Any method that reduces the amount of joints is preferred. Coaxial tubing is manufactured with “spacers”  every few inches to keep the inner tube centered in the jacket. These spacers pose no problem when bending provided the bends are of the long radius type. I have never seen an inner tube pinch from bending the outer.

Steve Paolini
Equipment dood
Harvard University Center for Nanoscale Systems

From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Matthieu Nannini, Dr.
Sent: Tuesday, December 16, 2014 11:33 PM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] Bending coaxial

Dear colleagues,

A local company is proposing to bend coaxial SS tubing to install a double containment gas line thus removing the need for welded 90° elbows. did you ever see that ? Any comment would be helpful !

Thanks

Matthieu Nannini

Début du message réexpédié :


De: "Matthieu Nannini, Dr." <matthieu.nannini at mcgill.ca<mailto:matthieu.nannini at mcgill.ca>>
Objet: Bending coaxial
Date: 15 décembre 2014 15:31:10 UTC−5
À: Tom Britton <tbritton at criticalsystemsinc.com<mailto:tbritton at criticalsystemsinc.com>>

Hi tom,

A local company here can bend coaxial tubing. They quoted me 4800$ for the 2 lines BCl3 and SiCl4.

What do you think of bending ? They told me the 1/4 wasn’t kinked at all.

Matthieu

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