137 / | HD | FLUID HANDLING |
154 | DF | DIVERSE FLUID CONTAINING PRESSURE SYSTEMS {7} |
171 | DF | .~ Fluid separating traps or vents {5} |
197 | DF | .~.~ Discriminating outlet for gas {2} |
199 | DF | .~.~.~ Fluid sensing valve {2} |
200 | .~.~.~.~ With vaporized liquid stop {1} | |
201 | DF | .~.~.~.~.~> With separate return for condensate |