How many cfms?

[S.S.S]

Hi guys,
We picked up a surge aloma pump that is rated for 52 cfm. How many taps is something like this rated for? We are looking at around 1000 taps this year. How many cfms does it take for 100 taps?
Thanks, Jon

[regor0]

All I would say is you have room for expansion. 1 cfm is your answer. congrats and welcome to the site.
Hi guys,
We picked up a surge aloma pump that is rated for 52 cfm. How many taps is something like this rated for? We are looking at around 1000 taps this year. How many cfms does it take for 100 taps?
Thanks, Jon

[nymapleguy607]

Milker pumps like that are typically rated at 15"hg, if you start pulling higher numbers like 20"hg then your cfms will drop off. You should still have plenty of pump for 1000 taps

[S.S.S]

Thanks for the help guys.

[maple flats]

You should figure more like 2 cfm/100 taps, since even the best ubing systems are not 100% leak free. The Surge is likely the same as one of mine (if it is a Surge Alamo), rotary vane pump. The CFM is rated at 15" vac and is at 650 RPM, the CFM changes as the RPM goes up or down. I run the same one at 21" vac (at the pump) turning about 700 RPM. One thing you need to do to these, is open up the oilers if you are running more than about 16-17" vacuum. It is simple, just unhook the nut that joins the tube to the pump bearing housing, clamp onto the wire inside and "snap off a 1/4-3/8" piece". The wire controls the speed of the oil drips. Don't snip it or you will leave a flash at the cut that will hang up in the tube and not dispense the oil. If you don't do this the bearings will wear out much faster. If you stay at or under about 17" this is not needed, but make sure the tubes are not plugged. On that point, remember, for every inch you gain in vacuum, you gain 5-7% in sap.

[S.S.S]

Dave do you have a gas engine or electric motor on your pump and what kind of horsepower? Thanks