| Includes | flocculators and mixers used in water and wastewater treatment. Mixers and agitators used for mixing the contents of open-topped tanks, closed vessels, and in pipelines. Mixers and agitators with axial-flow, circular flow, or radial flow impellers. |
| Alternate Terms/Abbreviations | rapid mixers: vertical flash misers. Tank mixers: agitators. |
| See | 40 90 00 for process controls. 43 23 56 for liquid process mixers used for industrial processes. 45 00 00 for ribbon mixers, batch mixers, and other industrial mixing equipment. 46 33 73 for liquid chemical diffusers. 46 51 00 for air and gas diffusion equipment used in secondary treatment processes. |