| 210 / | HD | LIQUID PURIFICATION OR SEPARATION |
| 97 | DF | FLOW, FLUID PRESSURE OR MATERIAL LEVEL, RESPONSIVE {14} |
| 109 | DF | .~ Discharge of treated material {5} |
| 112 | | .~.~ Heavier constituent {3} |
| 113 | DF | .~.~.~> By weight of solids |
| 114 | DF | .~.~.~> By treated liquid accumulation |
| 115 | DF | .~.~.~> With lighter constituent outlet control |