| 165 / | HD | HEAT EXCHANGE |
| DIG 318 | DD | WITH DRIVEN AGITATOR {2} |
| DIG 320 | DD | .~ Fully rotary agitator {4} |
| DIG 322 | | .~.~ Including heat exchange jacket-walls {2} |
| DIG 323 | DD | .~.~.~> Heating or cooling coil disposed between jacket-walls |
| DIG 324 | DD | .~.~.~> Agitator having blade sections mounted along rotating shaft |