Higher ratio oil pumps provide additional capability when dealing with long distance oil dispensing, higher viscosities, unusual line restrictions or a combination of these factors. The 21400 pump is a 8:1 ratio pump with flow rates up to 5.5 GPM while the 21500 is a 13:1 ratio pump with a flow rate of 4 GPM. These are both universal stub pumps that can be easily adapted to fit most any tank or drum application.
Ratio 13:1
Flow Rate @ 90 PSI (GPM) 4.0
Maximum Air Pressure (PSI) 120
Air Inlet Size 3/8 inch npt
Fluid Outlet Size 3/4 inch npt
Fits Drum Sizes. you add your own suction tube to desired length
Liquidynamics 13:1 heavy duty oil pump (you dd your own suction tube) 21500-S2
Ratio 13:1
Flow Rate @ 90 PSI (GPM) 4.0
Maximum Air Pressure (PSI) 120
Air Inlet Size 3/8 inch npt
Fluid Outlet Size 3/4 inch npt
Fits Drum Sizes. you add your own suction tube to desired length