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Geospect > Forums > Geospect Chromatograph > Pump?
 
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WestTxWellsite
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Registered: 01/28/09
Posts: 14

    01/29/09 at 11:42 AM
#1

I would like to know what everyone is using for carrier air?

I can't seem to find anything very quiet that will supply 7-8 pounds.

I've been using a Thomas pump. It's not all that quiet.

Mike
Mike
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Registered: 01/09/09
Posts: 62

    01/29/09 at 02:28 PM
#2

You can use just about anything. Remember that you don't have to keep the pump/compressor inside of your unit. I suppose you could also build some kind of noise insulating housing around your Thomas pump. We use a small compressor in the field, and a Gast pump in the shop. The Gast pump is relatively quiet. You can find comparable pumps for cheap on Ebay if you just want to experiment.
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Mike Cunningham Jr.
Geospect Instruments

http://www.geospect.com
PT
Registered: 05/07/09
Posts: 1

    07/27/09 at 03:28 PM
#3

with the pumps we have tried, we have noticed that they get hot and then pump erratically in the summer. temps range from 60 to 100+ degrees outside. anyone have any cooling Idea's?
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