Fire Safe Phenolic Duct Series

The phenolic duct system is designed for high-risk environments. It uses
closed-cell foaming technology to achieve ultra-low thermal conductivity
(0.022W/m·K), which is 80% lighter than traditional metal ducts and meets
Class A fire protection standards. The smooth inner wall design reduces wind
resistance and is suitable for commercial buildings, laboratories and
industrial exhaust systems.
​Attribute Category ​Attribute Item ​Attribute Value Example
​Basic Information Product Model SQ-PF-120 (FireSafe Phenolic Duct 120
kg/m³)
Material Composition Phenolic resin + Glass fiber reinforcement
layer + Flame retardant additives
Color Standard gray / Custom colors (RAL color chart supported)
​Physical Properties Density 120 kg/m³ ±5%
Thermal Conductivity ≤0.022 W/(m·K)
Compressive Strength ≥0.15 MPa (ASTM D1621 standard)
​Fire Performance Fire Resistance Class Class A Non-combustible (GB
8624-2012 / ASTM E84 Class A)
Smoke Density Rating ≤5 (GB/T 8627)
​Environmental Adaptability Operating Temperature Range −40°C ~
+150°C
Corrosion Resistance Resists acids/alkalis, anti-mold (ASTM G154
certified)
​Installation Parameters Standard Length 3m / 6m (custom cutting supported)
Connection Method Flange connection / Socket joint (compatible
with ISO 13351 standard)
​Certifications & Compliance International Certifications CE / UL 723 /
RoHS

Click to Enlarge