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Posted by Cydrome Leader on March 7, 2008, 10:48 am
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> I have a chance to get an old, but serviceable medical vacuum pump, at a
> very reasonable price. When I switched it, gave off a very offensive odour.
> What is the best way to decontaminate the thing? I am thinking in terms of
> lots of alcohol, but am open to suggestions.
don't run alcohol though a vacuum pump with the motor running.
compressed air + alcohol = engine or fire.
vacuum pump oil itself can smell horrible even without unknown stuff mixed
in.
I don't mind tearing pumps apart, as long as I know what they were used
for, or were rebuilt and came with fresh oil.
If you don't want to tear it apart, you could try flushing it and dumping
in fresh vacuum pump oil and repeating.
I always get standard pump and difusion pump oil from kurt lesker
company. They have incredible tech support, and can surely tell you more
about your pump than you could find on the internet.
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Posted by DT on March 7, 2008, 2:26 pm
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>
>I have a chance to get an old, but serviceable medical vacuum pump, at a
>very reasonable price. When I switched it, gave off a very offensive odour.
>What is the best way to decontaminate the thing? I am thinking in terms of
>lots of alcohol, but am open to suggestions.
>
Change the oil. If it has a gas ballast, crack it open it for a few hours while
the pump is running, this helps carry water and other contaminents through.
--
Dennis
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Posted by Mike on March 10, 2008, 11:57 am
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>I have a chance to get an old, but serviceable medical vacuum pump, at a
>very reasonable price. When I switched it, gave off a very offensive odour.
>What is the best way to decontaminate the thing? I am thinking in terms of
>lots of alcohol, but am open to suggestions.
I used a spare vacuum pump a few years ago rather than suck on a pipe
to assist in syphoning some petrol. I didn't use a fluid trap but
turned off the pump as soon as soon as I possibly could - despite that
a tiny, minscule drop of fuel somehow reached the pump. Nothing, not
even multiple changes of oil would make the whiff of petrol go away
every time the pump was used (for composites consolidation). In the
end a full strip and seal change was necessary.
--
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> very reasonable price. When I switched it, gave off a very offensive odour.
> What is the best way to decontaminate the thing? I am thinking in terms of
> lots of alcohol, but am open to suggestions.