[labnetwork] Stainless Steel Tubing

[Dennis Schweiger]

John,

Good morning.  My rough guess is that 1/4" will be fine for your
application, but without knowing the gas (density), and the delivery
pressures, it's hard to give a definitive answer.  The larger tubing size
would give you a future margin for error if your process needs were ever to
change, and using an HVCR fitting still gets you a connection that will
work with the 1/4" VCR components.

One of the things you could consider is to deliver to the tools at a higher
pressure, then step the pressure down at the tool with a mini regulator of
some sort.

It's hard to provide a better answer without knowing more about your
delivery system.

As always, if you want to discuss further, please feel free to give me a
call.

Good luck,

Dennis Schweiger
University of Michigan/LNF
Facilities Supervisor

734.647.2055 Ofc

On Thu, Sep 1, 2022 at 5:25 PM John Ransom <jaransom at uark.edu> wrote:

> I have gotten recommendations that I should use 3/8” SS tubing EP 316L,
> but the availability of that is out into May or June of 2023.  ¼” is
> better.
>
>
>
> But can I use ¼” with a process that runs <1slm?  The fittings to most of
> the tools is ¼” VCR or swagelok.  But I have a 90ft run in one case.  Any
> guidance is appreciated.
>
>
>
> John Ransom
>
> Program Manager – MUSiC Facility
>
> *M*ulti-*U*ser *SiC* Fabrication Facility
>
> University of Arkansas
>
>
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