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Author: Subject: Suitability of vacuum pump -need advice
enkephalin
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[*] posted on 16-6-2010 at 11:46
Suitability of vacuum pump -need advice


I was wondering if people wouldnt mind having a look at this vacuum pump, and could possibly advice as to whether its as good a deal as it looks. I understand that a deal is never as good as it looks, and that you get what you pay for, but whether this might be suitable for a few years of light service doing occasional vacuum distillations of organic solvents.
I've realised that building a decent aspirator station in the UK is a very expensive project, given the unbelievable shitness of our hardware stores, and if this would suffice, it might be more economical.
Many thanks in advance,

Enkephalin

http://cgi.ebay.co.uk/NEW-INDUSTRIAL-QUALITY-VACUUM-PUMP-84L...
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Contrabasso
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[*] posted on 16-6-2010 at 12:21


The pump will work, and live as long as you look after it and keep the gas flow clean with no corrosives.

I got a decent filter pump from thelabwarehouse.com and it was cheap with good delivery, just pay over the phone and the parcel comes in the next post.
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zed
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[*] posted on 17-6-2010 at 01:20


Seems expensive to me, but I'm in the USA. Pumps of similar appearance, cost about $75.00 dollars here (50 pounds). Were it actually a German engineered and manufactured pump, which I doubt, I would be more enthusiastic.
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franklyn
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[*] posted on 17-6-2010 at 09:44



Except for cosmetic details it's the very same one from Harbor Freight.
http://www.sciencemadness.org/talk/viewthread.php?tid=11236#...

These come as part of a kit for purging and charging air conditioning refrigerant.
If you are in the E.U. better to forego Ebay and just google vacuum pump.

Base price should not be more than $ 80 - 90 and can be found for less , and
maybe on Ebay at that.

You must use traps ahead of the intake to prevent contamination of the
working parts and oil, or it won't last for very long passing corrosive gas.
See here _
http://www.sciencemadness.org/talk/viewthread.php?tid=14001#...

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hissingnoise
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[*] posted on 17-6-2010 at 11:54


Quote:
Were it actually a German engineered and manufactured pump, which I doubt, I would be more enthusiastic.

The pump is in Berlin but it isn't made in Germany. . .

http://www.tootoo.com/d-rp15918232-vacuum_pump/

[edit] Buying a Chinese-made pump might require some thought!



[Edited on 17-6-2010 by hissingnoise]
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