API 661 Finned Tube Bundle for Air Cooled Heat Exchanger
Yuhong Group Co., Ltd. specializes in the engineering, fabrication, and supply of high-performance air-cooled heat exchanger equipment and replacement components. Designed to meet strict API 661 and ASME Section VIII Div. 1 standards, our custom finned tube bundle solutions deliver optimal thermal performance in demanding oil, gas, petrochemical, and power generation processes.
Whether you require a complete air cooled heat exchanger system, a custom-engineered u tube bundle, or standalone core replacement parts—such as a precision-drilled heat exchanger tubesheet or specialized finned tubes—Yuhong Group provides durable, factory-tested solutions tailored to your operational requirements.

Our custom tube bundle assemblies are built to fit various air cooler designs and operating environments:

• Header Box Configurations: Plug Header, Removable Cover Plate Header, Pipe Header, and Manifold Type Header.
• Flow Configurations: Single-pass and multi-pass arrangements for liquids, vapors, and multi-phase fluids.
• Draft Designs: Forced Draft (fans located below the tube bundle) and Induced Draft (fans located above the tube bundle).

To handle corrosive process fluids, coastal marine atmosphere, and high-pressure/high-temperature conditions, we supply a wide selection of certified materials:

In addition to complete heat exchangers and shell and tube heat exchanger cores, Yuhong Group supplies individual precision-machined replacement components for plant maintenance and overhaul projects:

Our finned tube bundle products provide distinct operational benefits in various process cooling scenarios:

1. Water-Saving & Eco-Friendly Cooling: Ideal for industrial facilities located in arid regions or areas with strict water consumption restrictions, replacing conventional cooling towers.
2. High Pressure & Temperature Resilience: Heavy-wall header boxes and welded tube-to-tubesheet joints allow safe operation under extreme operating pressures.
3. Low Maintenance & Long Service Life: Extruded fins provide complete mechanical protection to the base tube, eliminating atmospheric corrosion between fin and tube interface.
4. Custom Drop-in Replacement: Engineered according to original manufacturer specifications for easy installation during field retrofits.

To ensure long-term efficiency and minimize unexpected shutdown risks, plant operators should evaluate the following technical parameters when selecting or replacing a finned tube bundle:

• Fin Type vs. Atmospheric Environment:
  • Extruded Fins offer maximum corrosion protection for coastal or marine environments.
  • Embedded (G-Fin) types are suited for continuous high operating temperatures (up to 400°C).
  • Wrapped (L / Double L / KL)* fins provide cost-effective solutions for mild atmospheric conditions.
• Tube-to-Tubesheet Joint Integrity: High-pressure applications require expanded-and-strength-welded tube joints, followed by 100% NDT (PT/UT) to guarantee zero leakage.
• Vibration & Thermal Expansion: Proper support baffle spacing and sliding support designs must be incorporated to accommodate thermal movement across large temperature differentials ($\Delta T$).

Need a custom quote or technical evaluation for a replacement finned tube bundle, u tube bundle, or heat exchanger tubesheet?
Contact the Yuhong Group technical sales team directly:

• Email: jimmy@steelseamlesspipe.com
• Official Website: www.tema-heatexchanger.com
• Company: Yuhong Group Co., Ltd.