Stainless Steel Double-Layer Insulated Chimney / Duct

Product Description

This double-layer insulated chimney features a stainless steel inner and outer shell with a rock wool insulation core, providing excellent thermal insulation and fire resistance. Designed for high-temperature exhaust systems, it reduces heat loss and improves safety. Ideal for boilers, industrial exhaust, and fire-rated ventilation systems.

Materials & Structure

• Core Materials
  • Inner & Outer Layers: Stainless Steel (304 / 201 / 316 Optional)
  • Insulation Layer: Rock Wool (Fireproof, Heat-Resistant, Thermal Insulation)
  • Type: Insulated Ventilation Duct / High-Temperature Exhaust Chimney
  • Application: Dust Extraction, Smoke Exhaust, High-Temperature Ventilation
  • Customization: Yes (OEM / ODM Supported)
• Structural Features
  • Double-Layer Design  Stainless steel inner and outer walls with a rock wool insulation core to effectively reduce heat transfer.
  • Connection Method   Flange connection with pre-drilled holes for easy installation and strong sealing performance.
  • Manufacturing Options   Available in spiral duct, TDF flange duct, and welded duct configurations.

Performance Parameters

• Operating Temperature: -70°C to 900°C
• Compressive Strength: High
• Bending Strength: ≥ 90
• Thermal Insulation: Rock wool core minimizes heat loss, prevents condensation, and reduces surface temperature
• Corrosion Resistance: Stainless steel resists acids and alkalis, suitable for harsh industrial environments
• Sealing Performance: Flange + welded construction ensures low air leakage and efficient system operation

Specifications & Customization

• Dimensions: Fully customizable (diameter, length, thickness)
• Customization Services
  • Production based on drawings or samples
  • Custom materials, insulation thickness, and connection methods

Product Advantages

• Excellent Thermal Insulation   Double-layer structure with rock wool effectively reduces heat transfer and improves safety
• High Temperature & Corrosion    ResistanceSuitable for extreme environments up to 900°C
• Easy Installation   Flange connection allows quick on-site assembly and reduces installation time
• Flexible Customization    Meets diverse project requirements in size, structure, and materials

Applications

• Core Applications
  • Industrial dust collection and smoke exhaust systems
  • High-temperature exhaust ventilation
  • Fire smoke exhaust systems
  • Industrial waste gas discharge
• Applicable Scenarios
  • Factories, workshops, and chemical plants
  • Boiler and generator exhaust systems
  • Hotels, shopping malls, and office buildings
  • Fire-rated ventilation systems requiring insulation and safety

Important Notes

• This product is fully customized.
• Please confirm
  • Material type (304 / 201 / 316)
  • Diameter, length, and thickness
  • Insulation requirements
  • Connection method
  • Operating temperature and application conditions