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Vacuum Pump Recomendations
7

Vacuum Pump Recomendations

Vacuum Pump Recomendations

(OP)
I am looking for recommendations for liquid ring vacuum pump manufacturers.  I have a new project and I am new to this technology.  I'm trying to use vacuum distillation to reclaim / recycle plastic contaminated with a flammable oil.

RE: Vacuum Pump Recomendations

Have you googled "liquid ring vacuum pumps" yet?  I did it with the quotation marks and got 61,400 hits.  That will give you a start.

As far as a recommendation, hit #1 was Graham Manufacturing and I don't hesitate to recommend them.  www.graham-mfg.com

rmw

 

RE: Vacuum Pump Recomendations

We used to use Nash liquid ring vacuum pumps but they may have been bought out by someone, maybe Graham.  They were quite serviceable.

RE: Vacuum Pump Recomendations

Depending on how low you are going I would reccomend two other options.  First I would say that a dry screw pump from Kinney or Bush would be less of a problem.  The second option would be a eductor pump using condensate from your process as the motive fluid.   Works alot like the liquid ring pump but it gives you the option of multiple stages.

Regards

StoneCold.

RE: Vacuum Pump Recomendations

I've had good experience with Nash and Sihi.  Sihi I thought was a little better.

RE: Vacuum Pump Recomendations

wizz..

Tell us more...... don't make everyone guess....

What is the capacity and depth of vacuum for your application ?

What is the application?

This helps a lot in suggesting manufacturers.

-MJC

   

RE: Vacuum Pump Recomendations

A word of caution: when sizing the pipeline to a vacuum pump double the water (liquid) flow to get the correct pipe size, most people forget that the air has to move too.  Using regular water flow rules at 6ft/sec will choke a vacuum pump.

RE: Vacuum Pump Recomendations

(OP)
Thanks All,  application is vacuum distilation to remove naphtha extrusion lube from PTFE film/tape.  Vessel is 600 cf and rated for 20 Torr.  I'm thinking liquid ring at the moment.

RE: Vacuum Pump Recomendations


http://www.buschpump.com/

I have had very positive experiences with Busch, they know their strengths and limitations.

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