ACA109-128

The ACA aftercooler platform pairs a removable straight-tube bundle with proven shell-side baffling, and this configuration applies that design to compressed air aftercooling. Hot compressed air enters the tubes while cooling water counterflows through the shell, condensing moisture for removal downstream. Physically, the unit runs a 10-inch shell, 108-inch shell length in a 1-pass arrangement. It carries 1/4-inch O.D. tubes. Standard construction uses cast iron bonnets, steel shell, copper tubes, and steel tubesheets. Design ratings run to 300°F maximum temperature. This build is designated ACA109-128. Typical duty includes compressed air dryer pre-cooling, compressor discharge aftercooling, and moisture and oil removal from plant air. A floating rear tubesheet lets the bundle expand freely and pull for cleaning, and full-size air connections hold pressure drop down.