VSG Selection Chart
Series 20, Series 20CP, Series 40, Series
80
Viscosity • Speed •
Gallonage
Maximum Recommended Pump Speeds For Various
Viscosities
Enter the VSG Chart below at the appropriate
pumpage viscosity value (SSU /CPS), read across
to the desired capacity, where you will find
the correct model, recommended pump speed
and the minimum suction piping size.
Caution: Suction piping diameter must be
separately determined, regardless of pump
port size, where volatile liquids or viscous
pumpage are concerned. For very viscous fluids,
liquid levels should be high enough above
pump centerline to assure positive pressure
("Flooded Suction") at all times.
Contact/RFQ 
