| Includes | Pumps and ancillary equipment for conveying and handling liquids for industrial, commercial, and municipal processes, where the pumping element and pump driver are submerged on a continuous basis or immerged on a non-continuous basis. Includes various types of centrifugal and positive displacement pumps. Level 2 numbers from 43 23 00 through 43 26 99.99 include pumps for conveying and/or compressing liquids for various types of processes. Centrifugal (rotodynamic) pumps may include open, semi-open, or enclosed impellers, recessed impellers, screw centrifugal impellers, or disc impellers. |