Webster Compressor Info needed.

Crash5291 · Dec 19, 2012

I just picked up this unit i"m looking to find specs on the pump setup
(CFM rating and rpm)

and a recommendation for a gas motor size to run it.

The unit is on its original tray as far as i can tell, on the tray it
has
Model: R
Serial: 3264

On the pump itself has Serial: 4611
pump as 3 spoke 9" pulley (OD) with an attached after cooler i"m
guessing

Thoughts?

Thanks Joe

XRogerX · Dec 19, 2012

If you know the first stage displacement in cubic inches, divide by 10 and it will give you the electric motor horsepower required to run it. A good safe margin is to double that for a gas engine. FYI, the model of the pump is the first two digits of the pump serial number, therefore, according to that, you have a model 46 pump, which I have never heard of. I do know that thee was a Model 45 pump, and you can check another YTMag post for some info that I have mostly forgotten over the years!
Webster Stuff.

Crash5291 · Dec 19, 2012

Here is a few pictures i took,

<a href="http://imageshack.us/photo/my-images/585/wholed.jpg/" target="_blank">

</a>

<a href="http://imageshack.us/photo/my-images/651/pumpserial.jpg/" target="_blank">

</a>

<a href="http://imageshack.us/photo/my-images/545/traytag.jpg/" target="_blank">

</a>

Can i reuse the head gasket without issue? (if it comes apart ok) as i will have to pull the head to check the bore/stroke to figure that out.

It has a 1725RPM 1/4hp (5.0A) motor(2" pulley) but it stalls out at about 50 PSI.

Thanks
Joe

Crash5291 · Dec 20, 2012

Just placed a call to Regional Compressor Ottawa
he had limited information on it

From what he did have its 900 RPM max and 1/2-1HP and he figured around 2cfm

Thanks
Joe

Bradtech · Sep 14, 2015

Hi Roger:

Apologies to the owner of the post - I am going to side-track with a personal request:
I have just purchased one of the aforementioned model 45 Websters. It has a replacement motor, and I clock the pump at 880RPM. I wondered if this was OK - someone else in an archived post indicated 600 max.

Also, I wondered if you had any service information for said unit. Specifically looking at pressures, volumes, and oil capacities / rating to do an oil changes. I need an over-pressure valve and a new pressure switch. I also want to service it before putting it to work.

Thanks in advance Roger,

Brad

Webster Compressor Info needed.

Crash5291

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Crash5291

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Crash5291

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Bradtech

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