| 165 / | HD | HEAT EXCHANGE |
|
| DIG 51 | DD | HAVING EXPANSION AND CONTRACTION RELIEVING OR ABSORBING MEANS {2} |
| DIG 52 |  | .~ For cylindrical heat exchanger {6} |
| DIG 53 | DD | .~.~> Flexible or movable header or header element {3} |
| DIG 60 | DD | .~.~> Expandable casing for cylindrical heat exchanger {2} |
| DIG 63 | DD | .~.~> Cylindrical heat exchanger fixed to fixed end supports {2} |
| DIG 67 | DD | .~.~> Cylindrical heat exchanger rectilinearly slidable relative to its support {1} |
| DIG 69 | DD | .~.~> Pivotal support for cylindrical heat exchanger |
| DIG 70 | DD | .~.~> Resilient fluid seal |