5-155-04-081-003

this configuration is a ACA aftercooler unit built on a removable straight-tube bundle for compressed air aftercooling. Hot compressed air enters the tubes while cooling water counterflows through the shell, condensing moisture for removal downstream. Dimensionally it is a 4-inch shell unit, 72-inch shell length in a 1-pass arrangement. It carries 1/4-inch O.D. tubes. That combination is cataloged as 5-155-04-081-003. The build specifies cast iron bonnets, steel shell, copper tubes, and steel tubesheets. Operating limits are 300°F maximum temperature. Common applications are compressed air dryer pre-cooling, compressor discharge aftercooling, and pneumatic tool and instrument air conditioning. A floating rear tubesheet lets the bundle expand freely and pull for cleaning, and full-size air connections hold pressure drop down.