Jul 31, 2026Customized case
Silicone Duct Hose - High Temperature Industrial Ventilation
High-temperature silicone duct hose for industrial exhaust, HVAC, and automotive applications. Rated to +310C with OEM customization and global shipping.
Silicone duct hose is a high-temperature flexible ventilation hose made from silicone-coated glass fiber fabric with a spring steel wire reinforcement. It is designed for industrial exhaust, HVAC, and automotive applications that require reliable airflow at temperatures up to +310°C - outperforming standard rubber and PVC ducting in extreme thermal environments.
Key Specifications & Selection Parameters
Selecting the right silicone duct hose starts with matching the operating environment to the correct material grade and construction. Below are the critical parameters that determine performance and service life:
Material: Silicone-coated glass fiber fabric (outer layer) + spring steel wire reinforcement
Temperature Range: -50°C to +150°C (standard); -50°C to +310°C (premium / Kevlar reinforced)
Inner Diameter: 16mm to 305mm - customizable per application
Working Pressure: Low-pressure ventilation (typically <0.5 bar) - not rated for high-pressure liquid transfer
Color Options: Red, grey, black - Pantone match available for OEM orders
Length: Standard 4m per piece; customized lengths up to 4.3m with end cuffs
Why Choose Silicone Duct Hose - Core Advantages
Compared to neoprene, PVC, or standard rubber ducting, silicone duct hose delivers measurable advantages in high-heat and chemically aggressive environments:
1. Extreme Temperature Resistance
Silicone-coated fiberglass withstands continuous exposure to +260°C and intermittent peaks up to +310°C - more than double the limit of neoprene (-50°C to +150°C). This makes it the default choice for engine exhaust, turbocharger routing, and industrial furnace ventilation.
2. Flame Retardant & Self-Extinguishing
The glass fiber substrate and silicone coating meet UL94 V-0 flame classification. In the event of direct flame contact, the hose does not propagate combustion, protecting surrounding equipment and personnel.
3. Superior Chemical Resistance
Silicone resists oxidation, ozone, and mild acids / alkalis that degrade organic rubber over time. Service life in outdoor or chemical-adjacent installations is typically 3-5 years - versus 1-2 years for neoprene equivalents.
4. 360° Flexible Routing
The corrugated construction and embedded spring wire allow full 360-degree bendability without kinking. Installers can route around obstacles, through tight engine bays, or across uneven factory floors without additional elbows or connectors.
5. Lightweight & Easy to Handle
A 100mm x 4m silicone duct hose weighs approximately 1.8 kg - roughly 40% lighter than comparable metal ducting. This reduces shipping costs, simplifies on-site installation, and lowers structural load in overhead HVAC runs.
Typical Applications
Silicone duct hose is used across a broad spectrum of industries where hot air, fumes, or exhaust gases must be safely conveyed:
Automotive & Motorsport: Turbocharger intercooler piping, exhaust gas recirculation (EGR) routing, dyno-cell ventilation, and racing air intake systems
Industrial Ventilation: Fume extraction from welding stations, chemical processing hoods, and high-temperature drying ovens
HVAC & Climate Control: Hot-air distribution in industrial heaters, kiln pre-heating circuits, and dehumidification systems
Aerospace & Defense: Ground-support equipment (GSE) ducting, aircraft engine test-cell exhaust, and auxiliary power unit (APU) ventilation
Food & Pharmaceutical: Clean-room hot-air sterilization lines and drying tunnels where FDA-compliant materials are required
Quality & Trust - What to Look For
Not all silicone duct hoses are manufactured to the same standard. Before placing an order, verify the following quality indicators:
Material Certification: Request RoHS and REACH compliance certificates to ensure the silicone and glass fiber meet EU environmental and safety regulations.
Temperature Testing: Reputable suppliers provide third-party test reports confirming continuous and peak temperature ratings under ISO 17441 or equivalent standards.
Reinforcement Integrity: Inspect that the spring steel wire is fully embedded between fabric layers (not exposed) to prevent corrosion and maintain structural integrity.
End-Cuff Options: For airtight connections, specify silicone cuffs at one or both ends. Cuff-equipped hoses eliminate the need for separate clamps and reduce leak points by approximately 35%.
Get a Custom Quote for Your Silicone Duct Hose
Ready to source high-temperature silicone ducting for your project? Contact ShengYa today with your required inner diameter, length, temperature range, and end-cuff preferences. We provide OEM private-label packaging, global shipping, and sample dispatch within 3-5 business days.
WhatsApp: +86 177 3387 8703
Email: info@zdsyb.com
Website: www.ssyhose.com
