Finned tubes are the core of an air-cooled heat exchanger, but the bundle around them decides whether the unit performs. Datang assembles fin tube bundles and complete air cooler units to customer drawings: tube-to-tubesheet expansion or welding, headers, fans, motors and structural frame.
Every bundle is pressure tested before shipment, and inspection records travel with the unit. For replacement bundles, we work from the original drawing or from measurements taken on site; the tube and fin geometry can be matched to the existing cooler so that the bundle drops into place.
Typical projects include refinery and petrochemical air coolers, compressor aftercoolers, dryer and process air heaters, and replacement bundles for ageing fin-fan coolers.
Send the duty or the original drawing — tube size, fin type, rows, passes, design pressure and temperature — and we will quote the bundle or the complete unit.
Related: Air Cooled Heat Exchangers · High Frequency Welded Fin Production · Integral Fin Rolling