239 / | HD | FLUID SPRINKLING, SPRAYING, AND DIFFUSING |
461 | DF | FLOW DEFLECTING OR ROTATION CONTROLLING MEANS {9} |
518 | DF | .~ Deflector and terminal flow element {4} |
521 | DF | .~.~ Deflector on one side of flow path {2} |
522 | ![]() | .~.~.~ Multiple or discrete deflecting surfaces |