Check on vac motor sizing.

[83-1184962233]

Hi All,

I got a good deal on 8 YDK YV-2100 vac motors for my flowbench. I've been running through some calcs to look at flow vs pressure from their product graph. I wondered if you guys could just check to see if I've got this right...

This is the graph for the vac motor.



I worked out that 1Pa is 0.004"H2O and therefore 1 hs is 10Pa or 0.04"H2O and 1 d/m^3/s is 2.1188CFM.

Now, say I use an incline manometer with 8" vertical rise and test at the following test pressures, this will give me:

28" test + 8" dp H20 gives 36"H2O total. One motor gives ~99CFM @ 36"H20 therefore 8 motors would do ~792CFM total at that test pressure right?

Using the above, at 40" test pressure for a total of 48"H2O, one motor gives ~91CFM @ 48"H2O therefore 8 motors would do ~728CFM.

Does this sound right and do these seem like a good motor to use? Hard to get the Amtek ones over here in the UK, at a sensible price anyway.

Hope you guys can help

[SWR]

From what I get one motor can pull 65" while relocating 80cfm of air... Eight of them should handle 500+ cfm at 65",that should make your bench able to handle most heads with ease...

[83-1184962233]

Thanks SWR

[SWR]

You're welcome,Stef. I just wish I had the 12Kw of power available to run mine.