330 specifications and flow

by Denis
(Mckinleyville, CA)

I just bought a Devilbiss compressor, the pump has 330 cast into it.

Do you know the CFM with the 1.5 horse motor? will a 5 hp motor in crease the CFM? Just guessing by the style and the original ( I think) GE electric motor it looks to be from the 1950's

Comments for 330 specifications and flow

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Dec 05, 2018
Byron - devillbliss 330 motor
by: Bill

You will need to ensure that the RPM of the new motor is the same as the old.

If they are, the HP of the new motor doesn't matter, as long as it has the power to cycle the compressor pump,.

Make sure you use the same motor and pump pulleys, and that the motor shaft has the same RPM.

Dec 04, 2018
devillbliss 330 motor
by: byron

Could a 7.5 hp motor work to get more cfm is it going to kill the pump?

Feb 13, 2016
by: Doug in s.d.ca

You might get close if you can get at least ballpark figures for the bore(s) and stroke(s) assuming this is a reciprocating pump.

That, combined with the present pump RPM could tell us what more you might get with a bigger motor.

Feb 13, 2016
Devilbiss 330
by: Bill

Evidently that compressor pump, the Devilbiss 330, was made about 60 years ago. Also reputed to be very reliable, though almost no original parts are available.

As to flow, since the specs aren't available, I can only suggest the rule of thumb, and that's covered on the compressor CFM and flow pages on this site.

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