ASTM A179 Wound-Fin Tube for Pasta Pre-Dryers and Main Dryers

ASTM A179 Wound-Fin Tube for Pasta Pre-Dryers and Main Dryers is a heat transfer component designed for air heating systems used in pasta processing and industrial drying equipment. It combines a seamless low-carbon steel tube manufactured to ASTM A179 requirements with helically wound aluminum fins to provide a large external heat transfer surface.

The ASTM A179 carbon steel base tube provides reliable mechanical strength and pressure resistance for heating media such as steam or hot water, while the aluminum fins increase the effective heat transfer area on the air side. This construction is particularly suitable for continuous hot-air circulation systems where compact equipment dimensions and efficient heat transfer are required.

Wound-fin tubes can be manufactured according to the customer's heat exchanger design, including tube diameter, wall thickness, fin height, fin thickness, fin pitch, finning length, and unfinned tube sections.

ASTM A179 wound-fin tubes with aluminum fins are commonly used in:

• Pasta pre-dryers
• Pasta main dryers
• Pasta drying machines
• Pasta production lines
• Food processing dryers
• Industrial drying equipment
• Hot-air circulation systems
• Steam air heaters
• Air heating coils
• Process air heaters
• HVAC heating equipment
• Industrial heat exchangers

In pasta drying systems, the finned tube assembly can be used as an air heating coil. Steam or hot water flows through the ASTM A179 tube, while process air passes across the aluminum fins. The increased fin surface improves air-side heat transfer and helps provide stable heating conditions for continuous drying operations.

The typical construction consists of:

Base Tube: ASTM A179 seamless low-carbon steel tube
Fin Material: Aluminum
Fin Type: Helically Wound-Fin
Heating Medium: Steam, hot water, or other compatible heating fluids
Heat Transfer Side: Forced or circulated air

The aluminum fin strip is helically wound around the outside of the base tube. Depending on the required thermal performance and operating conditions, the fin can be manufactured in different heights, thicknesses, and pitches.

ASTM A179 specifies seamless cold-drawn low-carbon steel heat exchanger and boiler tubes. Typical chemical composition requirements for the base tube are shown below.

The typical mechanical requirements for ASTM A179 base tubes are: