Surge model 100 rotary vane pump question

[Talcott Family Maple]

I just purchased a surge model 100 rotary vane pump. I ordered a 11hp honda motor for it but am unsure what size pullys to install oon pump and motor. Local dealer tells me to run pump at 500-700 rpm. im not sure how to check motor speed and at what throttle setting to check before purchacing pully's.
Also this pump is 100cfm i have two seperate pipelines about 500 ft apart.each one has approxametly 175 taps. inorder to connect the two i would need to build two sap ladders one 20ft the other10ft. or should i buy two realeasers and run a dry line.

[500592]

With that big of a pump I would do sap ladders

[Bucket Head]

There is no pulley on the pump? I have a formula for figuring sizes, but I've always used it by starting with the stock pump pulley diameter as a base figure. Anyone on here have one of these pumps with the pulley still on it? Can you measure its diameter? I am familiar with the Surge SP piston pump pulleys but not the rotory vane ones, unfortunately.

[davey]

I would first try to figure out what rpm your engine runs well with good power and efficiency. Then if you put possibly a three inch pulley on the engine you should be able to dtermine the pump pulley size failry easily. I like to stay with three inch or so engine pulleys and not smaller to relieve stress on the belt. I might also try to figure out what size electric motor it was originally as typically there rpm's are pretty standard and go from there. 1725, 1745, 3000 and 3450 are fairly common rpm's for ag motors.

[meadster02]

I have an alamo 100 it is a direct drive 5.5 horse motor 1100 rpm if that helps you any im not sure just figured id let ya know

[maple flats]

That sounds fast. I have a Alamo 75 and was told I'd get the 75 cfm at 750 RPM on the pump at 15". I get less because I only turn it at 625 and I go 17". For next year I'm planning to get a larger motor (gas, Honda) use chain drive and go up to 20". My 6.5 Honda with double belts slipped at 18", so I stayed at 17.
Using a slower motor and larger drive pulley will give lots better grip for higher vac. If you have electric I'd go the slowest motor speed you can find and use a larger drive pully. My gas Honda has 2.25" drive pulley which is needed to power the pump but too little grip. I'm thinking 9 horse and chain drive (or larger drive pulley, double grove).

[maple flats]

Here is a Surge dealer, in Morrisville, NY, they could give you specs on your pump. Wormoth Dairy, surge dealer. 315-684-9152. It does seem they said mine is a 50-75-100 depending on the RPM, same head. realize these numbers are all at 15" vac. I have 1 30 cfm Alamo that I get 20" easy. I'd try more but that is on a Zero vac tank and don't dare go more. Be sure to either open the oilers by shortening the wire in the drip tube (break it don't cut it) or better yet get new adjustable oilers from an industrial supply.

[markcasper]

The 100 alamo pump has cfm of 50. Those surge pumps are rated at 1/2 of what the number is, that is right from an old surge dealer. He said something of New Zealond having 100 cfm, but in America its rated at 50% number.