You are correct on the operation of the two-stage. They are also a little
bit more efficient. A two stage will normally produce more air (CFM=Cubic
Feet per Minute) than a single stage will, on the same hp. motor.
Kevin Lake
56 GMC Suburban/napco
----------
> From: STMSymank@aol.com
> To: ace0027@ibm.net; oletrucks@autox.team.net
> Subject: Re: [oletrucks] Need advice
> Date: Monday, March 22, 1999 10:17 PM
>
> Horsepower is an arbitrary rating. An old engineer showed me for sure.
He
> has an old one horse motor with a half inch shaft, and a new two horse
with a
> half inch shaft.
> I can stop the two horse with my gloved hand, and couldn't stop the one
horse
> to save my soul.
>
> I'm a carpenter and use compressors constantly. I have found that the cfm
is
> the critical measurement, and for any measure of constant use you must
have a
> cast iron pump. Aluminum castings with a cast iron bore may be fine, but
I do
> not have personal experience with them. An aluminum pump only lasts me
two to
> three years before it must run constantly to keep up with the guns.
Another
> nice feature to look for is that the pump and motor are not integral..I
have
> got large compressors from a dairy I worked on and they were all three
phase
> with integral pumps so you couldn't
> just swap out the motors. I also have no personal experience with two
stage
> compressors, but I think that they pump up pressure and pas the
pressurized
> air into the next cylinder for further buildup therefore acheiving higher
> pressure.Probably not too important.
>
> If you just use a compressor only on the weekends, an aluminum pump might
well
> last you long enough, but don't go to Sears and think you are getting a
power
> house
> just cause it says 6 horse.
> Happy Hunting,
> Stan Symank
> Newberg ore.
> 56 napco That just got its dash painted today and is lookin good
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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