Vacuum Pump Recomendations 7

[fbrwiz33]

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.

 

[rmw]

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.

http://www.graham-mfg.com

rmw

 

[davsy]

I agree with rmw Graham are good however there are many others, two I have experience of are

http://www.travaini.com

and

http://www.sihi-pumps.com

 

[zerosum]

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

 

[StoneCold]

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.

 

[ash9144]

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

 

[PISA]

you will find a list of liquid ring vacuum pump manufacturers in

http://www.vacuum-guide.com,

pls, try:

http://www.vacuum-guide.com/vacuum_pump/liquid_ring/liquid_ring_vacuum_pump_america.htm

 

[MJCronin]

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

 

[PBroad]

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.

 

[fbrwiz33]

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.

 

[nickelkid]

http://www.buschpump.com/

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