Standard Air Preheater Tubes

Standard air preheater tubes are typically made of carbon steel or alloy steel and are used in systems where corrosion and fouling are minimal.

Key Features:

• High heat transfer efficiency

• Good mechanical strength and dimensional stability

• Suitable for high-temperature, low-corrosion environments

• Customizable size and material options

Typical Specifications:

Coated Air Preheater Tubes

In harsh environments, especially where flue gases contain sulfur, chlorine, or high ash content, standard tubes can rapidly degrade due to corrosion, erosion, or fouling. To address this, coated air preheater tubes are used to extend service life and maintain heat transfer performance.

Why Coating Is Needed:

• Prevents acid dew point corrosion at cold-end zones

• Resists erosion from high-velocity ash-laden flue gases

• Reduces fouling and slagging, improving long-term efficiency

Common Coating Options:

• Service life extended 3–5 times over uncoated tubes

• Lower maintenance frequency and downtime

• Better heat transfer efficiency over time

• Custom coatings based on specific gas composition

Why Choose Boyu Industry

Boyu Industry combines decades of fabrication experience with advanced coating technology to provide full-scope air preheater tube solutions:

• Standard and coated tubes available

• Material traceability and ASME/ISO certifications

• In-house coating and heat treatment capabilities

• Tailored engineering support and after-sales service

Our tubes are trusted by clients in power generation, cement, petrochemical, and waste treatment sectors, both in China and internationally.

Conclusion

Whether you're operating in a standard thermal environment or dealing with aggressive flue gas conditions, Boyu Industry offers the right air preheater tube solution—from robust bare tubes to corrosion-resistant coated options. Our products help your system run longer, cleaner, and more efficiently.