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Verify vacuum pump information

Verify vacuum pump information

Verify vacuum pump information

(OP)
This is the information I got from an OEM.  4.0 CFM looks too low to me.  Can someone help me verify it?



Based on evaporation rate of 140 lb/hr at 26"Hg Vacuum, the following is what the vacuum pump should be sized for (this info can be sent to a vacuum pump vendor):

Service Vapor:                                                 60 wt% Ethyl Alcohol, 40 wt% Water (estimated)
Free Dry Air:                                                     1.5 lb/hr
Vapor Temperature:                                      90ᵒF
Suction Pressure at Vacuum Pump:            1.84 psia
MW:                                                                  39.2
Seal Water Temp (if required):                    80ᵒF (to be verified)
Volumetric Flow at Vacuum Pump:            4.0 ACFM                                                          


 

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