5-155-04-081-004

Configured for compressed air aftercooling, this configuration carries the removable straight-tube bundle construction that defines the ACA aftercooler range. Hot compressed air enters the tubes while cooling water counterflows through the shell, condensing moisture for removal downstream. The configuration measures 4 inches across the shell, 72-inch shell length in a 1-pass arrangement. It carries 1/4-inch O.D. tubes. The build specifies cast iron bonnets, steel shell, copper tubes, and steel tubesheets. Operating limits are 300°F maximum temperature. This build is designated 5-155-04-081-004. Typical duty includes pneumatic tool and instrument air conditioning, compressor discharge aftercooling, and compressed air dryer pre-cooling. A floating rear tubesheet lets the bundle expand freely and pull for cleaning, and full-size air connections hold pressure drop down.