In modern boiler and waste heat recovery systems, heat transfer efficiency directly determines fuel consumption and operating costs. As a professional Chinese serpentine tube manufacturer, Boyu Industry provides high-efficiency finned serpentine tubes widely used in economizers, air preheaters, HRSG systems, and industrial furnaces.

Our helical finned U-type coils are engineered for long service life, high heat transfer rates, and stable operation under severe flue gas conditions.

What Is a Finned Serpentine Tube?

A finned serpentine tube (also known as a U-type finned tube coil) consists of:

• Carbon steel or alloy steel base tube

• Continuously welded helical fins

• Precision cold-bent U configuration

The spiral fin structure significantly increases the external heat exchange surface area, enhancing convective heat transfer performance while reducing system footprint.

These components are typically installed in:

• Boiler economizers

• Air preheaters

• Waste heat boilers

• Cement plant heat recovery systems

• Industrial flue gas energy-saving units

Why Choose a Chinese Serpentine Tube Supplier?

China has become one of the most competitive manufacturing bases for boiler heat exchange components. Choosing a reliable Chinese supplier provides:

Cost Efficiency Without Compromising Quality

Optimized supply chains and large-scale production enable competitive pricing while maintaining strict quality standards.

Advanced Welding Technology

Boyu Industry adopts high-frequency welding for helical fin attachment, ensuring:

• Strong metallurgical bonding

• Uniform fin height and spacing

• High heat transfer efficiency

• Reduced fin detachment risk

Flexible Customization

We manufacture according to project specifications, including:

• Tube material: SA-210, SA-213, SA-179, 20G, alloy steels

• Fin pitch and thickness

• U-bend radius

• Surface treatment and anti-corrosion coating

Strict Quality Control

Each serpentine coil undergoes:

• Dimensional inspection

• Welding quality inspection

• Pressure testing (if required)

• Surface finish evaluation

Technical Advantages of Helical Finned Serpentine Tubes

Compared to bare tubes, finned serpentine tubes offer:

• 3–8 times increased external surface area

• Improved overall heat transfer coefficient

• Reduced exhaust gas temperature

• Lower fuel consumption

• Compact equipment design

The U-shaped configuration also facilitates flexible arrangement inside boiler convection sections, allowing efficient layout within limited space.

Applications in Boiler Economizers

In boiler economizer systems, finned serpentine tubes are installed in flue gas passages to recover residual heat from exhaust gases. The recovered heat preheats feedwater, which:

• Increases boiler thermal efficiency

• Reduces coal or gas consumption

• Minimizes stack temperature

• Decreases carbon emissions

This makes finned serpentine tubes an essential component in energy-saving retrofit projects.

Boyu Industry – Reliable Chinese Serpentine Tube Manufacturer

As a professional heat exchanger equipment manufacturer, Boyu Industry supplies finned serpentine tubes to power plants, coking industries, and energy recovery projects worldwide.

We provide:

• OEM manufacturing

• Custom engineering support

• Export-ready packaging

• Technical documentation

If you are looking for a reliable Chinese finned serpentine tube supplier, contact us for technical consultation and quotation support.