[time-nuts] Swagelok and metric tubing question

[Bob Camp]

Hi

https://www.mcmaster.com/#9811T14

https://www.mcmaster.com/#50365K33

First one is a 2 mm wall at $75 a chunk. Second one is 1.5 mm at $33 a chunk. It’s not
obvious why one is “compression fitting” and the other is “weld” rated. In any case, I suspect
you need the 2X more expensive, done just for compression fitting versionl. If anybody
is looking in their junk box, time to take your calipers out and check if that wall thickness 
is 2.0 mm or 1.5 mm (I guess …). 

Bob




> On Nov 11, 2016, at 12:51 PM, cdelect at juno.com wrote:
> 
> This sound off topic but it's for a Hydrogen Maser modification!
> The EFOS2 Maser is running low on Hydrogen and this time rather than
> refill the compressed gas bottle I'd like to install a Hydrostik in its
> place.
> I have obtained all the fittings I need but have hit a snag!
> I need a few short pieces of 10mm OD 1 or 2mm  wall stainless tubing to
> go into the Metric Swagelok fitting.
> However all I can find on the net would cost me over $100.00!
> Does anybody have a few short lengths (two 3" and two 4" if cut ready to
> insert in the fitting) or one 18" piece that I could buy at a reasonable
> price???
> 
> Thanks,
> 
> Corby
> 
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