| 417 / | HD | PUMPS |
| 65 | DF | ONE FLUID PUMPED BY CONTACT OR ENTRAINMENT WITH ANOTHER {10} |
| 118 | DF | .~ Liquid pumped by supplying or exhausting gaseous motive fluid to or from pumping chamber {7} |
| 137 | DF | .~.~ Cyclic pumping {5} |
| 145 | DF | .~.~.~ Correlated supply - exhaust of motive fluid or vacuum generating means {2} |
| 146 | | .~.~.~.~ With pilot valve |