Portable compressed air tank

G

Gareth Magennis

Guest
Right,


I would really like a very small, cheap, air tank that I can charge every
now and again at the local garage (i.e. can be filled with a standard car
tyre pump).
I would also like it to include one of these, to blow all the dust from the
heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABLE-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq



Does such a thing exist? Are retail tyre pumps powerful enough to charge
these?
I've been Googling but don't know the connector terminology that says "you
can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm really
not sure about the local tyre pump mechanism thingy to charge it.


Cheers,


Gareth.
 
Gareth Magennis wrote:

I only want to blow the dust out of a power amplifier occasionally.
I can buy a can of air do do that, but it is expensive.
Click to expand...

** You are labouring under a misconception.

So called "air duster" is not air, but liquefied gas - normally a fluorocarbon.

This allows a small can to hold a useful amount of gas, about 200 litres. A bottle of compressed air would be hold only a few percent of that amount with rapidly diminishing pressure as it is used - IOW almost useless.

You need a continuous supply of compressed air for your tasks.

The usual way to clean a fluff & dust clogged power amps is with a vacuum cleaner and a soft brush. A damp cloth gets most of what is left over.

In cases of sticky contamination or carbon soot from a fire only disassembly and washing in warm water and detergent works.


..... Phil
 
On 2016-03-22 21:46:56 +0000, Gareth Magennis said:

Right,


I would really like a very small, cheap, air tank that I can charge
every now and again at the local garage (i.e. can be filled with a
standard car tyre pump).
I would also like it to include one of these, to blow all the dust from
the heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABLE-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq




Does such a thing exist? Are retail tyre pumps powerful enough to charge these?
I've been Googling but don't know the connector terminology that says
"you can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm
really not sure about the local tyre pump mechanism thingy to charge it.


Cheers,


Gareth.
Click to expand...

Go to Harbor Freight. They list five.

CP
 
"MOP CAP" <email@domain.com> wrote in message
news:20160322150453792-email@domaincom...
I've found lots of portable air tanks aimed at Motorsports, but I'm
really not sure about the local tyre pump mechanism thingy to charge it.



Go to Harbor Freight. They list five.
Click to expand...

Just buy one of the small air compressors at HF for under $ 100. If your
hose does not leak, you can keep the tank filled up for a while before you
need to run the compressor part.


If you want to , you can buy just the portabel tank and fill it anywhere
there is an air supply, hopefully around 100 or so psi.
 
"Ralph Mowery" wrote in message
news:rdWdnVD34aYXXmzLnZ2dnUU7-X3NnZ2d@earthlink.com...


"MOP CAP" <email@domain.com> wrote in message
news:20160322150453792-email@domaincom...
I've found lots of portable air tanks aimed at Motorsports, but I'm
really not sure about the local tyre pump mechanism thingy to charge it.



Go to Harbor Freight. They list five.
Click to expand...

Just buy one of the small air compressors at HF for under $ 100. If your
hose does not leak, you can keep the tank filled up for a while before you
need to run the compressor part.


If you want to , you can buy just the portabel tank and fill it anywhere
there is an air supply, hopefully around 100 or so psi.






Sorry, I forgot to include that I do not live in North America.
I am in the UK.


Cheers,


Gareth.
 
On 23/03/16 08:46, Gareth Magennis wrote:
I would really like a very small, cheap, air tank that I can charge
every now and again at the local garage (i.e. can be filled with a
standard car tyre pump).
Click to expand...

A standard type of water-based fire extinguisher can be pressurized
using air through a nozzle the same as a tyre nozzle. That is, you
can fill it yourself and pressurize at the local fuel station.
They have a pressure gauge so you can tell whether your extinguisher
is ready for use.

I have a couple of these, and used one in a gas-flow experiment at
150PSI, no water. It will discharge through a 1mm nozzle for longer
than 2 minutes. I have time/pressure graphs somewhere; that was the
point of the experiment, we measured the speed of sound and calculated
an approximation to absolute zero as a high-school experiment).

If you change the standard water nozzle for one with a smaller
diameter, and don't mind reaching down to the cylinder to discharge
it, you'd need no other changes.

My ones look like this:
<http://www.gumtree.com.au/s-ad/sebastopol/miscellaneous-goods/9l-water-fire-extinguisher-refillable-50-each/1086145027>

Clifford Heath.
 
"Ralph Mowery" wrote in message
news:rdWdnVD34aYXXmzLnZ2dnUU7-X3NnZ2d@earthlink.com...


"MOP CAP" <email@domain.com> wrote in message
news:20160322150453792-email@domaincom...
I've found lots of portable air tanks aimed at Motorsports, but I'm
really not sure about the local tyre pump mechanism thingy to charge it.



Go to Harbor Freight. They list five.
Click to expand...

Just buy one of the small air compressors at HF for under $ 100. If your
hose does not leak, you can keep the tank filled up for a while before you
need to run the compressor part.


If you want to , you can buy just the portabel tank and fill it anywhere
there is an air supply, hopefully around 100 or so psi.






I don't think you are getting my question.

I would like something like a small Fire Extinguisher I can have near to my
bench, not a big noisy compressor I have to store somewhere.



Gareth.
 
Per Gareth Magennis:
I would really like a very small, cheap, air tank that I can charge every
now and again at the local garage (i.e. can be filled with a standard car
tyre pump).
Click to expand...

Harbor Freight, as others have observed, is probably a good bet.

But how small?

If you want *really* small, start Googling "Paint Ball Guns". The
paint ball people who do not use CO2 use compressed air and the tanks
are quite small - yet hold something like 800 PSI.
--
Pete Cresswell
 
"Gareth Magennis" <soundserviceleeds@outlook.com> wrote in message
news:UNkIy.80081$hz.37884@fx42.am4...
I don't think you are getting my question.

I would like something like a small Fire Extinguisher I can have near to
my bench, not a big noisy compressor I have to store somewhere.
Click to expand...
No, we are not getting the question. Going by what you sent, the tank is
about a foot in diameter and 2 feet long. Or 1/3 of a meter in diameter and
a meter and a half long. The tanks are usually made to carry out on the
road and blow up car tires.

You now appear to want a tank about 3 or 4 inches in diameter and a foot
long.
You probably would not get enough air in it to do much at 100 psi or so that
many of the stations supply.
 
"Ralph Mowery" wrote in message
news:qd2dnRGsIqfCRmzLnZ2dnUU7-VfNnZ2d@earthlink.com...


"Gareth Magennis" <soundserviceleeds@outlook.com> wrote in message
news:UNkIy.80081$hz.37884@fx42.am4...
I don't think you are getting my question.

I would like something like a small Fire Extinguisher I can have near to
my bench, not a big noisy compressor I have to store somewhere.
Click to expand...
No, we are not getting the question. Going by what you sent, the tank is
about a foot in diameter and 2 feet long. Or 1/3 of a meter in diameter and
a meter and a half long. The tanks are usually made to carry out on the
road and blow up car tires.

You now appear to want a tank about 3 or 4 inches in diameter and a foot
long.
You probably would not get enough air in it to do much at 100 psi or so that
many of the stations supply.




I only want to blow the dust out of a power amplifier occasionally.
I can buy a can of air do do that, but it is expensive.

Surely there exists a small compressed air bottle that you can recharge at
your local garage do do that same job.



Gareth.
 
On Tue, 22 Mar 2016 21:46:56 -0000, "Gareth Magennis"
<soundserviceleeds@outlook.com> wrote:

Right,


I would really like a very small, cheap, air tank that I can charge every
now and again at the local garage (i.e. can be filled with a standard car
tyre pump).
I would also like it to include one of these, to blow all the dust from the
heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABLE-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq



Does such a thing exist? Are retail tyre pumps powerful enough to charge
these?
I've been Googling but don't know the connector terminology that says "you
can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm really
not sure about the local tyre pump mechanism thingy to charge it.


Cheers,


Gareth.
Click to expand...
Greetings Gareth,
Small tire, oops, tyre pumps will fill a small air tank. The problem
is how long it takes and the duty cycle of the pump. Some will have an
extended duty cycle and can be used without stopping for it to cool
down. The problem with all the small pumps is that they need to run
the tiny piston up and down very fast in order to fill a tire in any
reasonable length of time. This makes them noisy because the little DC
motor is spinning so fast. Oh crap, I just re-read your message and it
seems you are asking if the local gas station air compressor will be
powerful enough to fill your tank. Here in the USA most gas station
air compressors will be able to fill a portable air tank, but some to
maybe only to 80 PSI or so. Some of the gas stations have a stand
alone air compressor for filling tyres off away from the gas, er,
petrol pumps and they tend to have undersized compressors so filling
your tank may take a while. But they will fill it. I imagine that in
the UK there are similar things since ti, um ,tyres are the same the
world over no matter how you spell the name. I know some folks here
will also use old beer kegs to hold compressed air. They are made from
pretty heavy wall stainless steel. I have an old keg that I use for
just this reason. Recently I modified a keg, converting it into a
still for a new local micro distillery. The keg had stamped on it that
it would burst if pressurized over 60 PSI. After putting some holes in
it for various pipes I was able to measure the wall thickness and it
would take more, something around 350 PSI, to burst it. I think there
must be a lot of folks stealing kegs to use as air tanks.
Cheers,
Eric
 
On 22/03/2016 21:46, Gareth Magennis wrote:
Right,


I would really like a very small, cheap, air tank that I can charge
every now and again at the local garage (i.e. can be filled with a
standard car tyre pump).
I would also like it to include one of these, to blow all the dust from
the heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABLE-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq




Does such a thing exist? Are retail tyre pumps powerful enough to charge
these?
I've been Googling but don't know the connector terminology that says
"you can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm
really not sure about the local tyre pump mechanism thingy to charge it.


Cheers,


Gareth.
Click to expand...

I use a ,noisy, 1KW Martindale blower on dusty chassis, only the grease
stays in place after a quick session with that, outdoors of course.
 
I just looked up the specs on these, no wonder noisey, 381mph wind with
this 1.5HP version
 
On Tuesday, March 22, 2016 at 5:47:07 PM UTC-4, Gareth Magennis wrote:
Right,


I would really like a very small, cheap, air tank that I can charge every
now and again at the local garage (i.e. can be filled with a standard car
tyre pump).
I would also like it to include one of these, to blow all the dust from the
heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABLE-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq



Does such a thing exist? Are retail tyre pumps powerful enough to charge
these?
I've been Googling but don't know the connector terminology that says "you
can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm really
not sure about the local tyre pump mechanism thingy to charge it.


Cheers,


Gareth.
Click to expand...

First, keep a few things in mind.

a) Charging a tire in the field is an entirely different concept than what you want. Air is subject to Boyle's Law, and the tank size you suggest would either require a dangerous amount of pressure in it, or not have enough to be useful for more than a minute or two - put another way, one minute less than necessary 100% of the time.

b) Most "gas station thingys" do not have either filters or dryers on them. Meaning that the air you are getting will contain a good deal of moisture, which will also build up in the tank at each charge. If you use a commercial compressor, it will also discharge a certain amount of lubricant into the air. Neither moisture nor lubricants are any good for electronics.

c) As Mr. Allison pointed out rightfully, "canned air" is actually a compressed liquid, usually 1,1,1,2-tetrafluoroethane, is neither air nor designed for your purpose. When a liquid changes phase to a gas, and when that gas is decompressed, it loses heat (gets cold, the principle of refrigeration). So, "Canned Air" comes on strong, and after a very short time slows down as the evaporation reduces due to temperature loss.

With all that in mind, if you want to do what you suggest using compressed air, then invest in "doing it right". Obtain an inexpensive tank-mounted oil-less compressor *NAME BRAND* (I have a US-made reconditioned (by and from) Stanley). Obtain a Filter/Dryer (one of a great many is linked). Then, get a variety of fittings for different applications. My most useful is a flexible-wand device, very thin, that I can reach into very tight places and give moderate blasts of air. Mine fits behind/under the bench, and other than startling the cats when it runs, is practically invisible. I have linked a similar compressor to the one I have, but with a higher profile. The price is right, however.

Now consider all the other things a good compressor will do for you. Spray paint, particle blasting, run nail guns or staplers, start DynaJet engines quickly and safely. I use mine to blow out the water pipes at our summer house before winter. Works like a charm. Fill tires, automotive or bicycle, pressurize pipes for testing purposes, testing miniature steam engines, and much more. And, you can purchase after-market rechargeable spray cans, of course.

http://www.amazon.com/Compressed-desiccant-combination-EQUIPEMENT-COMPRESSOR/dp/B00UEUYHOG

http://www.amazon.com/BOSTITCH-BTFP02011-6-Gallon-Oil-Free-Compressor/dp/B00BF4VQ44

https://www.youtube.com/watch?v=9Gyq3OSwUN8

http://forum.12ozprophet.com/threads/rechargeable-can.137582/

Sorry for the rant, but what is desirable is not always practical, and what is practical is not always convenient. This is a nice example of that. After purchasing a compressor in anticipation of a major carpentry project - restoring our summer house after a flood - I am continuously surprised at the number of additional uses I find for it. The summer house is now raised by 8', no more floods.

Peter Wieck
Melrose Park, PA
 
In article <l3jIy.105403$lz.74663@fx44.am4>,
"Gareth Magennis" <soundserviceleeds@outlook.com> wrote:

Right,


I would really like a very small, cheap, air tank that I can charge every
now and again at the local garage (i.e. can be filled with a standard car
tyre pump).
I would also like it to include one of these, to blow all the dust from the
heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABL
E-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq



Does such a thing exist? Are retail tyre pumps powerful enough to charge
these?
I've been Googling but don't know the connector terminology that says "you
can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm really
not sure about the local tyre pump mechanism thingy to charge it.
Click to expand...

Gareth-

I can't find it now, but I have a small canister that may be what you
are describing. It is slightly larger than a spray paint can, and holds
a little less than a quart. The problem with it, is that it does not
hold enough air to be practical. I think its main value would be for
use as a liquid sprayer. Again, it does not hold enough air, and would
need frequent re-charging!

The canister has a valve assembly that unscrews from the tank, so you
could fill the tank with a liquid you wanted to spray.

It has a push-button valve on top, to spray the air or liquid. There is
a fill valve like the one on an auto tire (tyre), as well as a pressure
relief valve. I think it could easily be filled with a bicycle hand
pump. A filling station air pump might have too high a pressure for the
relief valve.

I have had it for many years. I got it to use for things like blowing
dust. However, I did not need to blow dust very often, so I eventually
forgot about it!

Fred
 
On Wednesday, March 23, 2016 at 8:01:33 PM UTC-4, Gareth Magennis wrote:
wrote in message
news:6beb97dd-2bbd-4af8-b98f-6643afa0eac8@googlegroups.com...

On Tuesday, March 22, 2016 at 5:47:07 PM UTC-4, Gareth Magennis wrote:
Right,


I would really like a very small, cheap, air tank that I can charge every
now and again at the local garage (i.e. can be filled with a standard car
tyre pump).
I would also like it to include one of these, to blow all the dust from
the
heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABLE-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq



Does such a thing exist? Are retail tyre pumps powerful enough to charge
these?
I've been Googling but don't know the connector terminology that says "you
can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm really
not sure about the local tyre pump mechanism thingy to charge it.


Cheers,


Gareth.

First, keep a few things in mind.

a) Charging a tire in the field is an entirely different concept than what
you want. Air is subject to Boyle's Law, and the tank size you suggest would
either require a dangerous amount of pressure in it, or not have enough to
be useful for more than a minute or two - put another way, one minute less
than necessary 100% of the time.

b) Most "gas station thingys" do not have either filters or dryers on them.
Meaning that the air you are getting will contain a good deal of moisture,
which will also build up in the tank at each charge. If you use a commercial
compressor, it will also discharge a certain amount of lubricant into the
air. Neither moisture nor lubricants are any good for electronics.

c) As Mr. Allison pointed out rightfully, "canned air" is actually a
compressed liquid, usually 1,1,1,2-tetrafluoroethane, is neither air nor
designed for your purpose. When a liquid changes phase to a gas, and when
that gas is decompressed, it loses heat (gets cold, the principle of
refrigeration). So, "Canned Air" comes on strong, and after a very short
time slows down as the evaporation reduces due to temperature loss.

With all that in mind, if you want to do what you suggest using compressed
air, then invest in "doing it right". Obtain an inexpensive tank-mounted
oil-less compressor *NAME BRAND* (I have a US-made reconditioned (by and
from) Stanley). Obtain a Filter/Dryer (one of a great many is linked). Then,
get a variety of fittings for different applications. My most useful is a
flexible-wand device, very thin, that I can reach into very tight places and
give moderate blasts of air. Mine fits behind/under the bench, and other
than startling the cats when it runs, is practically invisible. I have
linked a similar compressor to the one I have, but with a higher profile.
The price is right, however.

Now consider all the other things a good compressor will do for you. Spray
paint, particle blasting, run nail guns or staplers, start DynaJet engines
quickly and safely. I use mine to blow out the water pipes at our summer
house before winter. Works like a charm. Fill tires, automotive or bicycle,
pressurize pipes for testing purposes, testing miniature steam engines, and
much more. And, you can purchase after-market rechargeable spray cans, of
course.

http://www.amazon.com/Compressed-desiccant-combination-EQUIPEMENT-COMPRESSOR/dp/B00UEUYHOG

http://www.amazon.com/BOSTITCH-BTFP02011-6-Gallon-Oil-Free-Compressor/dp/B00BF4VQ44

https://www.youtube.com/watch?v=9Gyq3OSwUN8

http://forum.12ozprophet.com/threads/rechargeable-can.137582/

Sorry for the rant, but what is desirable is not always practical, and what
is practical is not always convenient. This is a nice example of that. After
purchasing a compressor in anticipation of a major carpentry project -
restoring our summer house after a flood - I am continuously surprised at
the number of additional uses I find for it. The summer house is now raised
by 8', no more floods.

Peter Wieck
Melrose Park, PA




That might be your experience, I just want to blow the dust off heatsinks
every now and again.

I don't have a Summer House.




Gareth.
Click to expand...

Dust + nicotine/kitchen grease/smoke/creosote = nothing what you describe could handle. Point being, as stated, what is desired is not practical, what is practical may not be convenient. FULL STOP.

Peter Wieck
Melrose Park, PA
 
On Tuesday, March 22, 2016 at 4:47:07 PM UTC-5, Gareth Magennis wrote:
Right,


I would really like a very small, cheap, air tank that I can charge every
now and again at the local garage (i.e. can be filled with a standard car
tyre pump).
I would also like it to include one of these, to blow all the dust from the
heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABLE-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq



Does such a thing exist? Are retail tyre pumps powerful enough to charge
these?
I've been Googling but don't know the connector terminology that says "you
can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm really
not sure about the local tyre pump mechanism thingy to charge it.


Cheers,


Gareth.
Click to expand...

All you need is an old refrigerant (freon) tank and a REFRIGERANT TANK CONVERSION KIT. I bought one of these years ago, and a friend gave me an empty freon tank. It consists of an adapter, valve, pressure gauge, and hose. You can fill it with any compressor and take it with you. I wouldn't fill mine more than about 150psi, but it worked great until I dropped something on it and broke the valve. I just found a kit on Ebay:

http://www.ebay.com/itm/REFRIGERANT-TANK-CONVERSION-KIT-TANK-ADAPTER-KIT-SG-94650t-/251278903428

And a photo of a typical tank, which can usually be gotten for free if you ask an A/C man:

http://ecx.images-amazon.com/images/I/41IwvEpnrhL.jpg
 
On 3/22/2016 7:51 PM, (PeteCresswell) wrote:
If you want *really* small, start Googling "Paint Ball Guns". The
paint ball people who do not use CO2 use compressed air and the tanks
are quite small - yet hold something like 800 PSI.
Click to expand...

You aren't going to refill to 800 psi at the local garage!
 
Unless I'm misunderstanding, what you want is widely available.

I lived in Germany for 5 years. I work for the US Army and where they send me I say yes sir.

In Germany you don't drag a hose to your car tires. Instead, you lift a small bottle off the compressor quick disconnect and walk to each tire. The bottle usually holds enough to pump up each tire. If you are unusually low you might have to set the bottle back on the compressor until it refills.

Google Airquick or go here:

http://ewo-stuttgart.com/garage-equipment/tyre-inflators/
 
wrote in message
news:6beb97dd-2bbd-4af8-b98f-6643afa0eac8@googlegroups.com...

On Tuesday, March 22, 2016 at 5:47:07 PM UTC-4, Gareth Magennis wrote:
Right,


I would really like a very small, cheap, air tank that I can charge every
now and again at the local garage (i.e. can be filled with a standard car
tyre pump).
I would also like it to include one of these, to blow all the dust from
the
heatsinks and chassis in Power Amplifiers, amongst other things.

http://www.ebay.co.uk/itm/VINTAGE-1986-HEAVY-DUTY-CLIP-ON-AIR-BLOW-GUN-PORTABLE-AIR-TANK-/281924138448?hash=item41a3fcf5d0:g:QPYAAOSwpzdWrsUq



Does such a thing exist? Are retail tyre pumps powerful enough to charge
these?
I've been Googling but don't know the connector terminology that says "you
can charge this with your local tyre pump".

I've found lots of portable air tanks aimed at Motorsports, but I'm really
not sure about the local tyre pump mechanism thingy to charge it.


Cheers,


Gareth.
Click to expand...

First, keep a few things in mind.

a) Charging a tire in the field is an entirely different concept than what
you want. Air is subject to Boyle's Law, and the tank size you suggest would
either require a dangerous amount of pressure in it, or not have enough to
be useful for more than a minute or two - put another way, one minute less
than necessary 100% of the time.

b) Most "gas station thingys" do not have either filters or dryers on them.
Meaning that the air you are getting will contain a good deal of moisture,
which will also build up in the tank at each charge. If you use a commercial
compressor, it will also discharge a certain amount of lubricant into the
air. Neither moisture nor lubricants are any good for electronics.

c) As Mr. Allison pointed out rightfully, "canned air" is actually a
compressed liquid, usually 1,1,1,2-tetrafluoroethane, is neither air nor
designed for your purpose. When a liquid changes phase to a gas, and when
that gas is decompressed, it loses heat (gets cold, the principle of
refrigeration). So, "Canned Air" comes on strong, and after a very short
time slows down as the evaporation reduces due to temperature loss.

With all that in mind, if you want to do what you suggest using compressed
air, then invest in "doing it right". Obtain an inexpensive tank-mounted
oil-less compressor *NAME BRAND* (I have a US-made reconditioned (by and
from) Stanley). Obtain a Filter/Dryer (one of a great many is linked). Then,
get a variety of fittings for different applications. My most useful is a
flexible-wand device, very thin, that I can reach into very tight places and
give moderate blasts of air. Mine fits behind/under the bench, and other
than startling the cats when it runs, is practically invisible. I have
linked a similar compressor to the one I have, but with a higher profile.
The price is right, however.

Now consider all the other things a good compressor will do for you. Spray
paint, particle blasting, run nail guns or staplers, start DynaJet engines
quickly and safely. I use mine to blow out the water pipes at our summer
house before winter. Works like a charm. Fill tires, automotive or bicycle,
pressurize pipes for testing purposes, testing miniature steam engines, and
much more. And, you can purchase after-market rechargeable spray cans, of
course.

http://www.amazon.com/Compressed-desiccant-combination-EQUIPEMENT-COMPRESSOR/dp/B00UEUYHOG

http://www.amazon.com/BOSTITCH-BTFP02011-6-Gallon-Oil-Free-Compressor/dp/B00BF4VQ44

https://www.youtube.com/watch?v=9Gyq3OSwUN8

http://forum.12ozprophet.com/threads/rechargeable-can.137582/

Sorry for the rant, but what is desirable is not always practical, and what
is practical is not always convenient. This is a nice example of that. After
purchasing a compressor in anticipation of a major carpentry project -
restoring our summer house after a flood - I am continuously surprised at
the number of additional uses I find for it. The summer house is now raised
by 8', no more floods.

Peter Wieck
Melrose Park, PA




That might be your experience, I just want to blow the dust off heatsinks
every now and again.

I don't have a Summer House.




Gareth.
 
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