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Author: Subject: manometer
devongrrl
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[*] posted on 30-11-2009 at 08:46
manometer



Can any one suggest a good place to look for a suitable manometer or gauge to measure vacuum pressure for vacuum filtration.

I tried rapid electronics but theres only works for positive pressure ?




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Magpie
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[*] posted on 30-11-2009 at 09:23


Try a hardware (or DIY) store. That's where I bought mine, probably for <$5.



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Contrabasso
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[*] posted on 30-11-2009 at 12:09


Car shop? Manifold vacuum gauge. Or try Timstar
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chemrox
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[*] posted on 30-11-2009 at 13:31


Why do you want a manometer? If its to see if you have enough vacuum to do the filtration the palm of your hand is a sufficiently precise instrument. Just start the water and place your palm over the mouth of the filter flask. Be sure you have a vacuum release in the setup. Most workers use a second filter flask as a water trap and vacuum release.



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devongrrl
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[*] posted on 1-12-2009 at 01:27


I had in mind to use a Drechsler gas washing bottle as a water trap.

Although Im wondering if its vacuum safe, would hate to get covered in shards of glass due to an implosion.




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