I believe these are what I am after.  This is used to evacuate a gas from a line, in a lab enviroment. Basically designing a one off circuit to control a manifold that accepts different gases to be fed to an analysis unit, so the pump will be on the other side of the lab gear to "pull" the gas thru the instrument as well as to evacuate the system after.
   
  

Harold Hallikainen <harold@hallikainen.com> wrote:
  
> alan smith wrote:
>> I'm looking for a small, QUIET air pump, running on 9-12VDC, lowest
>> possible current consumption as it may end up being in a handheld
>> device. Pretty much all the info I have right now, doesnt need to
>> pull/push alot of air, mainly just to evacuate gas from
>
> Fish tank air pump?
>

Try http://www.apollopumps.com/

Harold


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