| 285 / | HD | PIPE JOINTS OR COUPLINGS |
| 144.1 | DF | SERIAL,RELATIVELY MOVABLE PORTIONS {4} |
| 148.1 | DF | .~ Serial diverse single flow path or line {10} |
| 148.6 | DF | .~.~ Compound coupling (e.g., leak-gland type) {1} |
| 148.7 | DF | .~.~.~ Having molded or bonded joint {1} |
| 148.8 | ![]() | .~.~.~.~ Having bolted or screwed flange or clamp |