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Posted by Steve W. on March 7, 2008, 10:32 pm
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Steve R. wrote:
>> Check and see if there is a filter on the input side which will need
>> to be replaced. The more expensive units have a filter to prevent
>> foreign objects from getting into the pump and destroying the
>> precision parts. These filters (like an automotive fuel filter) tend
>> to trap odors and materials, whereas the metal parts of the pump
>> itself are unlikely to trap odors. For the same reason as the filter
>> was originally intended, you should avoid putting any liquid,
>> particularly solvent, into a vacuum pump, unless you have the entire
>> thing disassembled on a bench. These pumps are designed strictly for
>> air and gas use, not liquid or aerosol. If it's ex-medical, it was
>> probably used for suction or something, with the vacuum evacuating air
>> from a filter/trap unit, and the waste being sucked into the trap.
>
> This one is for medical use, as in suction, and has a bottle for the sucked
> up fluids. It's rated at 25 inches of Hg max.
>
>
> Steve R.
>
>
Sounds like it got used and was not properly cleaned. What make/model is
it. Many of the portable units come apart and can be sterilized in an
autoclave. All of ours can be and they are various years. Depending on
the unit replacement parts are likely available. The Laerdal and
DevilBiss units we have can be stripped down. These units do not use oil
usually, they have nylon or similar rings and parts in the pumps.
--
Steve W.
Near Cooperstown, New York
Life is not like a box of chocolates
it's more like a jar of jalapenos-
what you do today could burn your ass tomorrow!
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Posted by Steve R. on March 8, 2008, 5:49 am
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> Steve R. wrote:
>>> Check and see if there is a filter on the input side which will need
>>> to be replaced. The more expensive units have a filter to prevent
>>> foreign objects from getting into the pump and destroying the
>>> precision parts. These filters (like an automotive fuel filter) tend
>>> to trap odors and materials, whereas the metal parts of the pump
>>> itself are unlikely to trap odors. For the same reason as the filter
>>> was originally intended, you should avoid putting any liquid,
>>> particularly solvent, into a vacuum pump, unless you have the entire
>>> thing disassembled on a bench. These pumps are designed strictly for
>>> air and gas use, not liquid or aerosol. If it's ex-medical, it was
>>> probably used for suction or something, with the vacuum evacuating air
>>> from a filter/trap unit, and the waste being sucked into the trap.
>>
>> This one is for medical use, as in suction, and has a bottle for the
>> sucked up fluids. It's rated at 25 inches of Hg max.
>>
>>
>> Steve R.
>
> Sounds like it got used and was not properly cleaned. What make/model is
> it. Many of the portable units come apart and can be sterilized in an
> autoclave. All of ours can be and they are various years. Depending on the
> unit replacement parts are likely available. The Laerdal and DevilBiss
> units we have can be stripped down. These units do not use oil usually,
> they have nylon or similar rings and parts in the pumps.
>
> --
> Steve W.
> Near Cooperstown, New York
>
> Life is not like a box of chocolates
> it's more like a jar of jalapenos-
> what you do today could burn your ass tomorrow!
Thanks!. The trap will come apart. At the moment it's plumped up with
surgical tubing. That will be disposed of. I'm sure that it's oil free. I
will check on the make. It's late at night here, and the pump is in the
trunk of the car, outside. I thought it might be useful for testing
automotive vacuum relays, and debubbleising stuff I do in the workshop. No
way will I throw it out!
Steve R.
--
Reply address munged to bugger up spammers
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Posted by Steve R. on March 8, 2008, 8:14 pm
Please log in for more thread options
>
>> Steve R. wrote:
>>>> Check and see if there is a filter on the input side which will need
>>>> to be replaced. The more expensive units have a filter to prevent
>>>> foreign objects from getting into the pump and destroying the
>>>> precision parts. These filters (like an automotive fuel filter) tend
>>>> to trap odors and materials, whereas the metal parts of the pump
>>>> itself are unlikely to trap odors. For the same reason as the filter
>>>> was originally intended, you should avoid putting any liquid,
>>>> particularly solvent, into a vacuum pump, unless you have the entire
>>>> thing disassembled on a bench. These pumps are designed strictly for
>>>> air and gas use, not liquid or aerosol. If it's ex-medical, it was
>>>> probably used for suction or something, with the vacuum evacuating air
>>>> from a filter/trap unit, and the waste being sucked into the trap.
>>>
>>> This one is for medical use, as in suction, and has a bottle for the
>>> sucked up fluids. It's rated at 25 inches of Hg max.
>>>
>>>
>>> Steve R.
>>
>> Sounds like it got used and was not properly cleaned. What make/model is
>> it. Many of the portable units come apart and can be sterilized in an
>> autoclave. All of ours can be and they are various years. Depending on
>> the unit replacement parts are likely available. The Laerdal and
>> DevilBiss units we have can be stripped down. These units do not use oil
>> usually, they have nylon or similar rings and parts in the pumps.
>>
>> --
>> Steve W.
>> Near Cooperstown, New York
>>
>> Life is not like a box of chocolates
>> it's more like a jar of jalapenos-
>> what you do today could burn your ass tomorrow!
>
> Thanks!. The trap will come apart. At the moment it's plumped up with
> surgical tubing. That will be disposed of. I'm sure that it's oil free. I
> will check on the make. It's late at night here, and the pump is in the
> trunk of the car, outside. I thought it might be useful for testing
> automotive vacuum relays, and debubbleising stuff I do in the workshop. No
> way will I throw it out!
>
>
> Steve R.
>
>
>
> --
> Reply address munged to bugger up spammers
>
Arrrg! That should have been "plumbed up".
By the way, I have used high vacuum equipment. The pump I have is not in
that category.
Steve R.
--
Reply address munged to bugger up spammers
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Posted by Joe on March 7, 2008, 7:24 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.
First of all, what kind of pump is it? There's a few types that could
be used in a medical profession. Is it a simple pump like a Gast, or a
"real" 2-stage pump? If the latter, sometimes the oil gets
contaminated and stinks. HyVac makes an oil that you use to flush out
the pump, then refill with new oil. Works great. Otherwise, rebuilding
will take care of it. Beware, though, a rebuild kit for a 2-stage pump
can easily run over $200.
Joe
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Posted by Lloyd E. Sponenburgh on March 7, 2008, 8:04 am
Please log in for more thread options Beware, though, a rebuild kit for a 2-stage pump
> can easily run over $200.
yeah... and with a little careful shopping, you can get a brand new
Robinaire HVAC pump (good down to about .2u) for under $250.
LLoyd
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>> to be replaced. The more expensive units have a filter to prevent
>> foreign objects from getting into the pump and destroying the
>> precision parts. These filters (like an automotive fuel filter) tend
>> to trap odors and materials, whereas the metal parts of the pump
>> itself are unlikely to trap odors. For the same reason as the filter
>> was originally intended, you should avoid putting any liquid,
>> particularly solvent, into a vacuum pump, unless you have the entire
>> thing disassembled on a bench. These pumps are designed strictly for
>> air and gas use, not liquid or aerosol. If it's ex-medical, it was
>> probably used for suction or something, with the vacuum evacuating air
>> from a filter/trap unit, and the waste being sucked into the trap.