Surge Alamo 30 electric motor HP

[Bricklayer]

Anybody know what size electric motor is used on the Alamo 30 pumps.
I was able to find the RPM specs for the Pump. ( 765 rpm) But not the HP needed.
I would assume at least 1.5 hP but just wanted to make sure.
Trying to get this pump set up as my spare pump for next year.

[maple flats]

I'm not sure, I ran one on a 6.5 HP Honda for several years at about 1/2 throttle or slightly less, it had no issue.

[n8hutch]

Is a 30 rated at 30 CFM ? I wouldn't be at all surprised if that 1.5 hp would be more than enough your going to need pulleys probably 2 to 1 slow it down ?

[Bricklayer]

Don’t think it’s 30 CFM. 30 was the head it could handle as a dairy pump. Don’t quote me on that though.
765 RPM is the pump specs I have that. So it will be 2:1 or less with a 1725 motor.

[Bucket Head]

Years ago I bought an Alamo 30 (well I'm almost certain it's a 30) and the motor that came on it, which was also an Alamo brand motor, is 1.65 H.P. The R.P.M. is 1725 and it has a 4.5" diameter pulley on it.

Steve

[Clinkis]

I’m running a surge Alamo 30 right now with a 6.5 hp Honda motor. It came with a 1.5 hp electric motor when I bought it. If I remember correctly the pump is 15 cfm’s. I believe you could purchase various models of this pump from surge but it was the the same pump with different sized motors and pulleys and different rpm’s which would give it varying capacity.

I’ve been running mine for 4 seasons now and it’s been very reliable on the Honda engine at 1/2 throttled. Consistently pulls 23-24” at the releaser. Get another set of those de lavel adjustable oilers and flood the pump. I can send you pics of my setup if your interested.

[Bricklayer]

I’m running a surge Alamo 30 right now with a 6.5 hp Honda motor. It came with a 1.5 hp electric motor when I bought it. If I remember correctly the pump is 15 cfm’s. I believe you could purchase various models of this pump from surge but it was the the same pump with different sized motors and pulleys and different rpm’s which would give it varying capacity.

I’ve been running mine for 4 seasons now and it’s been very reliable on the Honda engine at 1/2 throttled. Consistently pulls 23-24” at the releaser. Get another set of those de lavel adjustable oilers and flood the pump. I can send you pics of my setup if your interested.

I rebuilt this pump a couple years ago and upgraded the oilers. And added a flood oiler, oil filter to reclaimer and copper oil lines, honed the pump body replaced a bearing. Pump is ready to go. Just gotta get the right electric motor.
I'll try the 1.5 hp I have. See how that goes. Worst case I have to go to a 2hp.

[Clinkis]

Sounds almost identical to what I did to mine21397

[maple flats]

The numbers on Alamo pumps are the number of cows it would handle in a normal dairy. Not the CFM nor the numbers of milkers it could run at once. I don't know how many milkers a typical 30 cow farm had, maybe 2 or 3 is my guess. The larger pump by Alamo was actually called a 50, 75, 100+ and the difference was the motor and the RPM. They also had a 40 but I suspect that may have been a 30 run at higher RPM (and a larger HP motor.

[Bricklayer]

Sounds almost identical to what I did to mine21397

Yes. Almost exact.
I put longer copper lines on mine and bent them upwards so they were higher then the oil level in the reclaimer. Had oil draining into pump with them lower.
But same setup basically.

[Clinkis]

I had the exact same problem so I put a ball valve between the filter and reclaimer. Hard to see in that picture. Just need to make sure I remember to turn it on when I start the pump!

[jimsudz]

original motor is 1.6 hp surge motor. I believe it isn actually a 1.5 hp lesson motor