Round tube fins are similar to Flat fins with the exception that the tube is round and are typically used for heavy duty applications where high pressure is required such as on condensers, oil coolers, radiators, and refrigeration. These fins can be made from several materials such as copper, brass, steel, or aluminum. Round tube fins are stamped, and can have different features such as louvers, waves, or dimples. Design criteria normally includes the tube size, pitch and row spacing along with enhancements required.
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