Air Operated Drum Pump Pump Package Type Unmetered Dispensing with Manual Shut-Off Air Inlet Size 1/4 in FNPT For Container Size 55 gal For Container Type Drum Air Consumption 14 cfm Max Flow Rate 6 gpm Max Oil Flow 6 gpm Discharge Connection Type FNPT Discharge Tube Outlet ID 1/2 in Discharge Tube Outlet OD 13/16 in Min Air Pressure 40 psi Max Air Pressure 200 psi Ratio 5 1 Max Outlet Pressure 1 000 psi Min Fluid Temp 30 Degrees F Max Fluid Temp 120 Degrees F