Numbers and Titles



Includestreatment equipment and physical control equipment intended for sanitary sewer overflow (SSO), combined sewer overflow (CSO), and storm water applications.
Alternate Terms/AbbreviationsSwirl concentrators: Vortex separators.
See33 34 00 for onsite wastewater disposal 33 41 00 for subdrainage 40 70 00 for process instrumentation. 46 07 53 for packaged wastewater, combined sewer overflow, and stormwater treatment systems at a treatment facility. 46 43 66 for ballasted high-rate clarifier equipment. 46 43 67 for high rate clarification/thickening equipment. 46 46 26 for tipping sediment flushing tanks, flushing gates, water cannons, and nozzle systems.
33 37 13Bending Weirs
33 37 16Spring-loaded Weirs
33 37 23Flow Regulators
33 37 33Swirl Concentrators
33 37 36Vortex-Type Hydrodynamic Separators
33 37 43Netting Systems
33 37 46End-of-Pipe In-water Storage Systems