Precision Engineering for 30HXC Heat Exchangers: A Custom Integral Low Fin Tube Solution
When a valued client from Thailand reached out to us, they had a specific and demanding requirement: they needed replacement low fin tubes compatible with a 30HXC heat exchanger. In the HVAC and industrial refrigeration industry, finding parts that perfectly match the dimensions and material specifications of legacy or specific OEM equipment is critical to preventing system failure and efficiency loss.
The Challenge
The client required a highly specialized tube design involving complex geometry and specific material properties. Standard off-the-shelf solutions would not fit their machinery, risking system inefficiency or failure. They needed a manufacturer capable of precise custom fabrication with strict adherence to dimensional tolerances.
Our Solution
We immediately mobilized our engineering team to design a custom integral low fin tube that met every parameter of their inquiry. We focused on three critical areas: material integrity, heat transfer optimization, and exact dimensional matching.
Technical Challenge
The client required complex Low Fin Tubes with both internal and external grooves to maximize the refrigerant-side and water-side heat transfer coefficients. The specifications demanded high-precision customization:
- Material: Copper-Nickel Alloy (CuNi) for superior corrosion resistance in demanding cooling environments.
- Structure: Integral Low Fin with Internal Ribbing (Enhanced surface area).
- Dimensions: OD:19mm Wall:1.5 mm Length:3100 mm
- Custom Land Areas: Specific “no-groove” plain sections (5 cm at both ends and 10 cm in the middle) to accommodate support plates and tube sheets.
Custom Integral Low Fin Tube Precision Engineering for 30HXC Heat Exchangers in Thailand



The Datang Solution
At Datang Finned Tube, we don’t just supply pipes; we provide engineered reliability.
- Material Integrity: We utilized high-grade Copper-Nickel alloy, ensuring the tubes withstand the rigorous thermal cycling and potential scaling typical of 30HXC water-cooled screw chillers.
- Precision Machining: Using advanced rolling technology, we achieved the precise internal and external groove profiles required to match the original thermal profile of the 30HXC unit.
- Accurate Plain Sections: Our production line was calibrated to leave exact $5 \text{ cm}$ end-lands and a $10 \text{ cm}$ mid-section land, ensuring a perfect, leak-free fit during installation into the existing tube bundle.
- Strict Tolerance Control: Every tube was inspected to ensure the OD and wall thickness met the tight tolerances necessary for high-pressure chiller applications.
- Rigorous Quality Testing for Reliable DeliveryEvery low-fin tube underwent multiple quality inspection procedures: from spectral analysis of raw materials, to in-process dimensional inspections, to finished product pressure testing, corrosion testing, and heat transfer performance simulation testing. This ensured the products not only met the client’s technical requirements but also operated stably in actual working conditions.
Why Global Clients Trust Datang
- OEM Compatibility: We specialize in manufacturing tubes that meet or exceed the performance of major brands like Carrier, Trane, and York.
- Expert Technical Support: Our team understands the nuances of “shape-like pipe” specifications and internal enhancement geometries.
- Fast Response & Logistics: From the initial Thai inquiry to final production, we prioritize clear communication and streamlined shipping to minimize maintenance downtime.
Whether it’s large-volume orders with standard specifications or personalized custom requirements, Datang can deliver precise technical solutions, reliable product quality, and efficient response speed to create value and win trust for clients worldwide.
Is your heat exchanger losing efficiency? Whether you need Copper-Nickel, Copper, or Stainless Steel enhanced tubes, Datang Finned Tube delivers the precision your system deserves. Contact us today for a technical consultation.Email:info@datangpipe.com,Whatsapp:+86 15690122018








