Comb-Shaped Boiler Tube Shields

Segmented Protection For High-wear Zones

Comb-shaped boiler tube shields offer modular, segmented protection for high-wear zones, reducing erosion and thermal stress in critical boiler areas with precision-engineered steel sleeves.

Comb-Shaped Tube Shield Segmented Boiler Guard Erosion Control Shield Tube Wear Protection +2 More

Comb-Shaped Boiler Tube Shields

Segmented Protection For High-wear Zones

Comb-shaped boiler tube shields offer modular, segmented protection for high-wear zones, reducing erosion and thermal stress in critical boiler areas with precision-engineered steel sleeves.

Comb-Shaped Tube Shield Segmented Boiler Guard Erosion Control Shield Tube Wear Protection +2 More

Comb-Shaped Boiler Tube Shields are modular, interlocking sleeves designed to protect critical boiler tube zones from intense erosion, thermal cycling, and mechanical impact. Unlike standard full-wrap shields, comb-type shields are segmented — resembling comb teeth — which allows them to expand and flex with the tube’s thermal movement, reducing stress cracking and surface delamination.

These shields are especially useful for:

Superheater tubes
Water wall sections
Air preheater zones
Tube intersections or tight access areas

Crafted from stainless steels (304, 316, 310S) or heat-resistant alloys (Cr25Ni20, Inconel), they provide superior corrosion resistance and mechanical durability under high flue gas velocity and extreme temperature conditions.

🏭 Typical Applications
Boiler Section	Problem Type	Recommended Material
Sootblower lanes	Particle impact + thermal fatigue	310S / Cr25Ni20
Water wall corners	Ash erosion + moisture	316L / 1Cr13
Cyclone inlet bends	Flue gas turbulence	Inconel / Duplex
Superheater risers	High-temperature oxidation	310S / 304H
Waste-to-energy walls	Corrosive flue gas attack	SS316L / Hastelloy

🧰 Technical Specifications
Property	Specification
Structure Type	Segmented (Comb-style Interlock)
Material Options	304, 316, 310S, 1Cr13, Cr25Ni20, Inconel
Shield Thickness	1.5 mm – 2.5 mm
Segment Length	80 mm – 150 mm per tooth
Mounting Method	Spot welding / partial wrap / clamp mount
Surface Finishing	Pickled / Shot Blasted / Anti-scaling Coated

Comb-shaped shields offer heat resistance, corrosion protection, and erosion prevention. They help maintain boiler efficiency and are easy to install and maintain.

The comb-shaped design deflects abrasive particles and fly ash away from the tube surface, reducing wear and maintaining structural integrity.

Yes. These shields are made of high-temperature resistant alloys such as 310S, Cr25Ni20, and Inconel, ensuring durability in extreme heat conditions.

Common materials include stainless steels like 304, 316, 310S, as well as Cr25Ni20, 1Cr13, and specialty alloys like Inconel and Hastelloy.

Shields should be mounted using spot welding, partial wrap, or clamp mount methods. Regular inspection and replacement of worn sections help ensure continued performance.

🧩 Modular Design: Perfect for partial coverage and maintenance flexibility
🛡️ Tailored Tooth Spacing: Erosion resistance focused exactly where needed
🔩 Field-Proven Durability: Withstands thousands of thermal cycles without failure
🌐 Engineered for Industry: Used in coal-fired boilers, biomass, marine, and waste heat systems
⚙️ Customization Available: Built per drawing or field dimension survey