Numbers and Titles



IncludesPumps and ancillary equipment for conveying and handling liquids for industrial, commercial, and municipal processes, where the pumping element is submerged or immerged, and the pump driver is located in an area not subject to submergence or immergence. Includes various types of centrifugal and Archimedes screw-type 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.
Alternate Terms/AbbreviationsCentrifugal pump: Rotodynamic pump. Suspended vertical pump: Vertical turbine pump: Vertical lineshaft pump.
NotesDouble-casing pumps have the suspended vertical pump installed in a vertically-oriented "suction barrel" or "suction can".
See21 30 00 for fire pumps. 22 11 23 for domestic water pumps. 23 20 00 for HVAC pumps. 23 57 33 for ground source (geothermal energy) heat pumps. 32 82 00 for irrigation pumps. 33 14 43 for packaged pumping systems for water utility service 33 32 00 for wastewater utility pumping stations. 33 44 11 for field-erected stormwater pumping stations 33 44 13 for packaged stormwater pumping stations 40 00 00 for process instrumentation and controls. 40 05 00 for pump control valves. 43 20 00 for liquid handling equipment 43 23 00 for dry location process liquid pumps. 43 25 00 for submersible/immersible process liquid pumps. 43 26 00 for specialized effect process liquid pumps.
43 24 11Vertically Suspended Single-Casing Submersible Centrifugal Pumps
43 24 13Vertically Suspended Single-Casing Discharge-through-column Centrifugal Pumps
43 24 16Vertically Suspended Single-casing Separate Discharge (Sump) Centrifugal Pumps
43 24 21Vertically Suspended Double-Casing Centrifugal Pumps
43 24 26Vertically Suspended Inline Casing Diffuser Centrifugal Pumps
43 24 41Archimedes Screw Pumps