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Old 12-30-2013, 05:36 PM   #1
mustangcrazy77
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Default Help ID Air Compressor Specs "EL Smith and Sons"

Hey, I just picked up this 30 gallon air compressor for $100. It cycles fine, holds air etc. I have no idea however the specs on the compressor itself, and have never heard of the brand "EL Smith and Sons". I cant seem to find a serial number or model number anywhere. Any help would be great!

Thanks!

Dan






Last edited by mustangcrazy77; 12-30-2013 at 05:41 PM. Reason: Edit Title
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Old 12-30-2013, 06:58 PM   #2
truckdriver
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

That pump looks like a Quincy to me. That could just be a sticker from the dealer that sold it.What does the plate on the compressor below the dipstick say?
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Old 12-30-2013, 07:27 PM   #3
mustangcrazy77
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

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Originally Posted by truckdriver View Post
That pump looks like a Quincy to me. That could just be a sticker from the dealer that sold it.What does the plate on the compressor below the dipstick say?
Unfortunately, it doesn't say a thing.
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Old 12-31-2013, 07:44 PM   #4
unashamedlaborer
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

Not a quincy. It looks like an old Le-Roi. Look for a metal tag on the pump. It may be painted over.
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Old 12-31-2013, 07:57 PM   #5
unashamedlaborer
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

My bad. It's a Rol-Air. For sure. Here is a pic for reference. Also notice the correct orientation of the discharge from the coalescing condensate drain.
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Old 12-31-2013, 08:27 PM   #6
kams1973
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

It's an old rebranded Curtis design.
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Old 01-01-2014, 10:19 AM   #7
mustangcrazy77
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

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Originally Posted by unashamedlaborer View Post
My bad. It's a Rol-Air. For sure. Here is a pic for reference. Also notice the correct orientati
on of the discharge from the coalescing condensate drain.
Awesome..thanks! That will at least give me a bit more to search on.

I have found a few more people with a similar setup, and according to this...http://www.practicalmachinist.com/vb...ressor-277610/ on mine it's a "bleed chamber" and hooked up properly.
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Old 01-01-2014, 10:20 AM   #8
mustangcrazy77
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

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Originally Posted by kams1973 View Post
It's an old rebranded Curtis design.
If it is, you wouldn't happen to have any info on it would you?

Thanks!

Dan
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Old 01-01-2014, 03:42 PM   #9
unashamedlaborer
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Default Help ID Air Compressor Specs "EL Smith and Sons"

Quote:
Originally Posted by mustangcrazy77 View Post
Awesome..thanks! That will at least give me a bit more to search on.



I have found a few more people with a similar setup, and according to this...http://www.practicalmachinist.com/vb...ressor-277610/ on mine it's a "bleed chamber" and hooked up properly.

If your going to use the pump for a practical purpose the "pulsation chamber" is useless, actually it is Inefficient, pulsation chambers are valuable on large high pressure piston machines, on a little pump like that it is just more air to waste by bleeding it to atmosphere so that the pump can start without excess load. Unless you have a functional unloader to keep the inlet valves open.
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Old 01-03-2014, 07:09 AM   #10
mustangcrazy77
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

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Originally Posted by unashamedlaborer View Post
If your going to use the pump for a practical purpose the "pulsation chamber" is useless, actually it is Inefficient, pulsation chambers are valuable on large high pressure piston machines, on a little pump like that it is just more air to waste by bleeding it to atmosphere so that the pump can start without excess load. Unless you have a functional unloader to keep the inlet valves open.
Interesting for sure. It being what looks like original equipment, I'll likely keep it as is though.

As for the pump itself, I'm not so certain it's a Rol-Air. Perhaps they used another manufacturers compressor on that tank?
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Old 05-01-2014, 06:50 PM   #11
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

Hi, I have the same search going, have you had any more luck in your investigations?
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Old 05-01-2014, 06:53 PM   #12
mustangcrazy77
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

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Hi, I have the same search going, have you had any more luck in your investigations?

No luck. I actually sold it shortly after posting as what it developed a pin hole in the tank. Good luck!



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Old 05-01-2014, 09:17 PM   #13
kams1973
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

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Originally Posted by mustangcrazy77 View Post
If it is, you wouldn't happen to have any info on it would you?

Thanks!

Dan
Sorry I missed your question. Below are a couple photos of the same model pump. Ignore the flywheel. The one pictured isn't original to the pump.

[IMG][/IMG]

[IMG][/IMG]
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Old 05-01-2014, 11:51 PM   #14
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

If it was assembled by a reputable company then you would get about 4.5 CFM per horsepower. You have a two horsepower motor so it should deliver 9 CFM @ 100 PSIG.

Now if it was assembled by some hack who just threw a bunch of parts at it to sell it quick then who knows how much air it puts out.

It looks like it was done by someone who knew what he was doing though. I wouldn't use it at pressures higher than 125 PSI though.
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Old 07-16-2014, 05:47 PM   #15
Old Skull
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

I know this thread is old but since I own a dual pump E.L.Smith compressor I know what they look like and my post may help future owner of this brand of compressor .

This American company have been sold long ago to the US company American Eagle, today they sell one of the best hydraulic air compressor unit on the market, they still sell parts and even pump!

Here the link :http://www.americaneagleacc.com/pumps.php

Last edited by Old Skull; 07-16-2014 at 05:55 PM.
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Old 09-18-2014, 10:21 AM   #16
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Default Re: Help ID Air Compressor Specs "EL Smith and Sons"

Old skull is spot on... I have same compressor 143 and parts are same back to the model 84. I bought this pump branded sanborn (but is e.l. smith (p.k. lindsey) was bought out by american eagle. Mine had pressure rating max 165 running 95-120.
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