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Posted by DrollTroll on October 8, 2008, 8:36 pm
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Awl --
My latest realization is that you can compensate for low cfm with tank
volume, to some extent. Feel free to correct this. :)
What are some good (read: safe *and* free) options for makeup tanks?
Propane -- as in BBQ? Oxygen? Acetylene? Others? I see many
substantial-sized tanks in the dump that look neither Ox nor acet, thicker
than your 5-ft tallish Ox tanks. Iny idear what these are?
One problem I can foresee is finding/making adapters to these tanks, as I'm
pretty sure there are no standard plumbing threads, no adapters that I am
aware of. How does one attack this problem?
I hesitate to have welding done on a tank, altho I think with piddling 120
psi air in an oxy/acet rated in the 1,000s of psi, mebbe welding "welded
couplings" is not so dicey.
--
DT
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Posted by ATP* on October 8, 2008, 9:31 pm
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> Awl --
>
> My latest realization is that you can compensate for low cfm with tank
> volume, to some extent. Feel free to correct this. :)
>
> What are some good (read: safe *and* free) options for makeup tanks?
> Propane -- as in BBQ? Oxygen? Acetylene? Others? I see many
> substantial-sized tanks in the dump that look neither Ox nor acet, thicker
> than your 5-ft tallish Ox tanks. Iny idear what these are?
>
> One problem I can foresee is finding/making adapters to these tanks, as
> I'm pretty sure there are no standard plumbing threads, no adapters that I
> am aware of. How does one attack this problem?
>
> I hesitate to have welding done on a tank, altho I think with piddling 120
> psi air in an oxy/acet rated in the 1,000s of psi, mebbe welding "welded
> couplings" is not so dicey.
> --
> DT
Just acquire an old compressor and use the tank.
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Posted by Gunner on October 9, 2008, 4:05 am
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wrote:
>
>> Awl --
>>
>> My latest realization is that you can compensate for low cfm with tank
>> volume, to some extent. Feel free to correct this. :)
>>
>> What are some good (read: safe *and* free) options for makeup tanks?
>> Propane -- as in BBQ? Oxygen? Acetylene? Others? I see many
>> substantial-sized tanks in the dump that look neither Ox nor acet, thicker
>> than your 5-ft tallish Ox tanks. Iny idear what these are?
>>
>> One problem I can foresee is finding/making adapters to these tanks, as
>> I'm pretty sure there are no standard plumbing threads, no adapters that I
>> am aware of. How does one attack this problem?
>>
>> I hesitate to have welding done on a tank, altho I think with piddling 120
>> psi air in an oxy/acet rated in the 1,000s of psi, mebbe welding "welded
>> couplings" is not so dicey.
>> --
>> DT
>Just acquire an old compressor and use the tank.
>
Correct. Lots..LOTS of them out there.
I have two 80 gallon tanks as secondary air tanks, besides the 120
gallon one under my Quincy.
I used to do a lot of DA sanding and grinding on boats
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Posted by Bob Engelhardt on October 8, 2008, 9:43 pm
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DrollTroll wrote:
> ...
> substantial-sized tanks in the dump that look neither Ox nor acet, thicker
> than your 5-ft tallish Ox tanks. Iny idear what these are?
100lb propane tanks are about 25 gal. 4-1/2' tall, 15" diam, more or
less. Do the math - is that 25 gal?
> One problem I can foresee is finding/making adapters to these tanks, as I'm
> pretty sure there are no standard plumbing threads, ...
Propane are standard: 3/4" NPT.
Bob
--
Nota for President
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Posted by on October 8, 2008, 9:57 pm
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I managed to pickup a 625 gallon propane tank to gang onto my
compressor. It had a bad regulator and the guy didn't want to pay to
have it repaired, so I picked it up cheap. I welded some bigger pads
on the feet and added casters so that I could move it around the small
shop I was in at the time. Biggest problem was finding some 2"
fittings to connect to it. I now have a IR 254 compressor on a 120
gallon tank to feed it. It's not all installed yet as we just moved
and shop isn't up yet.
Craig C.
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>
> My latest realization is that you can compensate for low cfm with tank
> volume, to some extent. Feel free to correct this. :)
>
> What are some good (read: safe *and* free) options for makeup tanks?
> Propane -- as in BBQ? Oxygen? Acetylene? Others? I see many
> substantial-sized tanks in the dump that look neither Ox nor acet, thicker
> than your 5-ft tallish Ox tanks. Iny idear what these are?
>
> One problem I can foresee is finding/making adapters to these tanks, as
> I'm pretty sure there are no standard plumbing threads, no adapters that I
> am aware of. How does one attack this problem?
>
> I hesitate to have welding done on a tank, altho I think with piddling 120
> psi air in an oxy/acet rated in the 1,000s of psi, mebbe welding "welded
> couplings" is not so dicey.
> --
> DT