API Pump Type Classification

API Pump Type Reference Table

OH1Overhung / Single Stage / Foot Mounted
OH2Overhung / Single Stage / Centerline Mounted
OH3Overhung / Single Stage / Vertical Inline / Separated Bearing
OH4Overhung / Single Stage / Verticle Inline / Rigid Coupling
OH5Overhung / Single Stage / Vertical Inline / Close Coupled
OH6Overhung / Single Stage / High Speed / Integral Gear Driven
BB1Between Bearings / Axially Split / Single or Two Stage
BB2Between Bearings / Radially Split / Single or Two Stage
BB3Between Bearings / Axially Split / Multistage
BB4Between Bearings / Radially Split / Multistage / Single Casing
BB5Between Bearings / Radially Split / Multistage / Barrel
VS1Vertically Suspended / Wet Pit / Single Casing / Diffuser Pump / Discharge through Column
VS2Vertically Suspended / Wet Pit / Single Casing / Volute Pump / Discharge through Column
VS3Vertically Suspended / Wet Pit / Single Casing / Axial Flow/ Discharge through Column
VS4Vertically Suspended / Single Stage / Line Shaft Sump Pump
VS5Vertically Suspended / Cantilever Sump Pump
VS6Vertically Suspended / Double Casing / Can Pump / Diffuser
VS7Vertically Suspended / Double Casing / Can Pump / Volute