liquid phase vacuum pump 2

[quan1tum1]

Hi all

My requirement is to eject liquid water from a vessel at 0.1 bar. Now this is not hard...with many pumps being sold that will accomplish this.

The problem is it is very much a lab scale operation and i only have to remove about 1-2 litres an hour. I would ideally like to have a pump that i can have come on every 5 minutes or so. Any ideas as to firms i can contact that have pumps that will do this, in the capacity range i have.

Or do you have some ingenious way to do this. A water column type principle seems a good idea except the part that i need 9 m to generate the 0.9 bar underpressure. Mercury would of course be a whole lots easier but then i still have to purify the water so this is not an option.

I can't change the conditions to avoid the formation of water...

Any advice would be much appreciated

 

[whylie]

Dear quan1tum1,

I can direct to metering pump suppliers for lab-scale process,

In the US check with LMI,(

http://www.lmipumps.com),tel:508

263 9800
Fax: 508 264 9172

In Europe check with ,Lewa (

http://www.lewapumps.com)

Of course you have to protect your vacuum,with a liquid seal
(water)..and maintain a static head..

Good luck,

Whylie

 

[quan1tum1]

Thanks Whylie

I have had a look at their web sites and thats exactly what I was after.

Kind regards
quan1tum1 (Ryan)