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The smaller SMC pneumatic pistons are common in industrial automation. You
can probably find them at your local industrial supplier. It doesn't hurt
to have an extra on hand, as you've noticed there's more than one in your
Conflo alone.

> We have a Conflo III, and the actuator that moves the Ref 1 capillary up
> and down is sticking.  As a result, when running N2 on/offs, my N2
> reference peaks are sometimes non-existent, and sometimes just a quick
> spike.  The arm goes down in steps (not smoothly), and quite slowly
> (takes ~5 seconds to get all the way down), but comes back up as it
> should.  The ref 2 actuator is working fine, and CO2 on/offs look fine.
> I've tried increasing the compressed air pressure, but that didn't help.
> Is there any sort of maintenance I should try (lubrication, replacing
> seals, etc.), or is it likely that I need to replace the actuator?  Does
> anyone have advice on suppliers (It's made by SMC Pneumatics, model
> C85N8-25S)?  Thanks for your help.
>
>
>
>
>
> Rebecca E. Plummer
>
> Contractor, Code 6114
>
> SAIC/Naval Research Operation
>
> phone: (202)404-1736
>
> fax: (202)404-8175
>
> e-mail: [log in to unmask]
>
>
>
>