Standard Shell & Tube Heat Exchangers
"The Basco Type 500 remains the industry standard in ultimate value and long-term reliability. This proven fixed tubesheet shell & tube heat exchanger offers the cost effectiveness that comes with having a highly standard design, while easily providing for various options to meet specific customer requirements."
API Basco/Whitlock Hub Design and API Basco/Whitlock U-tube Heat Exchangers
"API Heat Transfer's extensive line of Basco/Whitlock HT, AHT, heat exchangers offers the benefits of non-ferrous construction in a highly standardized design for maximum flexibility at minimum cost. Hub design advantages include increased corrosion resistance, maximum obtainment of tube quantity in a given diameter for better efficiency, and lower entrance velocity and pressure drop as a result of the dome shell nozzle." 
