Air Cooling CoilsProduct Description This air cooling coils is made of copper tube with copper sheet (or aluminum fin), enjoy advanced mechanical tube expander and double-flange aluminum fin structures.Standard Component MaterialsTube: Copper tube, Stainless Steel tube.Fin: Copper sheet, Aluminum Sheet.Casing: Galvanized sheet, Carbon Steel, Stainless Steel.Header: Iron, Copper tube, Stainless Steel.Air Cooling Coils Advantages1. Highly heat transfer coefficientThe copper tube expander makes copper tube contact the aluminum sheet and accelerate the turbulent flow, destroy the boundary layer, and enhance the heat transfer coefficient.2. Excellent heat transfer performanceThis structure, together with the rationally designed water route, tube distance and sheet distance offer excellent heat transfer performance, small air resistance, compact structure, light weight and other advantages.Air Cooling Coils SizeCopper tube ODHole PitchRow PitchFin MaterialFin Pitch9.52mm25.4mm22mmAluminum Sheet/Hydrophilic Aluminum Foil/ Copper Sheet/Epoxy Aluminum Foil8PFI~14PFI12.7mm31.75mm27.5mmAluminum Sheet/Hydrophilic Aluminum Foil/ Copper Sheet/Epoxy Aluminum Foil8PFI~14PFI12.7mm48mm41.57mmAluminum Sheet/Hydrophilic Aluminum Foil/ Copper Sheet/Epoxy Aluminum Foil3PFI~6PFI15.88mm38.1mm33mmAluminum Sheet/Hydrophilic Aluminum Foil/ Copper Sheet/Epoxy Aluminum Foil8PFI~14PFIProduct Information