[AT] Was: Lapping Air Compressor Valves then Compressed Air Piping

[Grant Brians]

Charles, if you were getting BLACK water, that is not from the iron, but 
rather either from the black coating, oil or carbon getting into the system. 
I built the system in the shop at the ranch by using plastic piping out of 
the sun and high up and galvanized steel on the drops. No rust and easy to 
do. The compressor is connected with an air hose. If I had to do it over, I 
might have NOT used the salvaged industrial quick-couplers as getting the 
male fitting for the hoses was not as easy. But it saved a lot of money 
doing it this way. I installed all of this in 1986 and it is still working 
great. I have the advantage of being in a moderately dry area and so 
draining the tank every few weeks seems to have been adequate so far to 
control moisture...
        Grant Brians
        Hollister, California
----- Original Message ----- 
From: "Sheppard, Charles E" <sheppard at indiana.edu>
To: <at at lists.antique-tractor.com>
Sent: Wednesday, August 03, 2005 8:06 AM
Subject: [AT] Was: Lapping Air Compressor Valves then Compressed Air Piping


>I guess I really started something when I said I didn't want steel pipe
> for shop distribution.  Its difficult to do, or at least more difficult
> than alternatives, but my concern is with internal corrosion.  My only
> experience is from an industrial setting.  Down legs off the main would
> fill with condensate and become black as ink from the iron oxide.  Every
> leg had a blowdown valve and my job, among many, was to blow the air
> until it was clean enough for the impact tools.  Of course nobody wanted
> a big black mess on their floor so I had to bucket the water to a drain.
> On really humid days I could blow the air and you could see the fog in
> the airstream.  I don't know if the iron pipe had much to do with it,
> but that's my old movie on the subject.
>
>
>
> As far as what it might cost, my budget is limited.  But there is a
> certain pleasure derived from being frugal-making do with materials at
> hand or salvaged at the local scrap yard.  Isn't that what this hobby is
> about?  Preserving the past is more a philosophy for me and I get great
> pleasure from, say, making an old tool work again.  If I were in the
> business of reconditioning tractors like some on the list, I would be
> more inclined to buy new.
>
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