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| PART NO. | INNER DIAMETER/mm | WALL THICKNESS/mm |
WEIGHT (g/m 2) |
| ZDHS-S-003 | 3.0±1.0 | 0.5±0.2 | 30 |
| ZDHS-S-005 | 5.0±1.0 | 0.7±0.2 | 30 |
| ZDHS-S-008 | 8.0±1.6 | 1.6±0.2 | 30 |
| ZDHS-S-010 | 10.0±2.0 | 1.6±0.2 | 30 |
| ZDHS-S-015 | 15.0±3.0 | 1.6±0.2 | 30 |
| ZDHS-S-020 | 20.0±4.0 | 1.6±0.2 | 30 |
| ZDHS-S-025 | 25.0±5.0 | 1.6±0.2 | 30 |
| ZDHS-S-030 | 30.0±6.0 | 1.6±0.2 | 30 |
| ZDHS-S-035 | 35.0±7.0 | 1.6±0.2 | 30 |
| ZDHS-S-040 | 40.0±10.0 | 1.6±0.2 | 30 |
| ZDHS-S-050 | 50.0±10.0 | 1.6±0.2 | 30 |
| ZDHS-S-060 | 60.0±10.0 | 1.6±0.2 | 30 |
| ZDHS-S-070 | 70.0±10.0 | 1.6±0.2 | 30 |
| ZDHS-S-080 | 80.0±10.0 | 1.6±0.2 | 30 |
| ZDHS-S-090 | 90.0±10.0 | 1.6±0.2 | 30 |
| ZDHS-S-100 | 100.0±10.0 | 1.6±0.2 | 30 |
Product Introduction
This high silica fiber sleeve is braided from high-silica oxygen fiber yarns. The sleeve exhibits smooth surface texture, flexibility, high-temperature resistance, fire resistance, personal protection, and thermal insulation characteristics. The continuous operating temperature rating reaches 1000°C. In extreme high-temperature or open flame conditions, the sleeve provides necessary protection for hoses, oil pipes, cables, and other piping systems. The sleeve is suitable for metal melt filtration and purification, high-temperature gas dust collection, liquid filtration, high-temperature refractory materials, welding insulation protection, automotive and motorcycle exhaust systems, muffling components, thermal insulation layers, and exhaust gas filtration. Surface coating treatments are available upon customer request.
Core Advantages
High Temperature Resistance
Continuous operating temperature rating of 1000°C. Withstands direct open flame exposure without melting, dripping, or burning.
High Silica Fiber Construction
Braided from high-silica oxygen fiber yarns containing over 96% silicon dioxide, providing superior thermal stability at extreme temperatures.
Flexible and Smooth Surface
The sleeve maintains flexibility at high temperatures, allowing installation around curves and irregular shapes without cracking.
Fire Protection Performance
The sleeve acts as a fire barrier, protecting underlying components from direct open flame and radiant heat exposure.
Personal Thermal Protection
Reduces surface temperature on exposed piping, protecting personnel from burn injuries when working near high-temperature systems.
Coating Customization
Surface coating treatments available to enhance abrasion resistance, chemical resistance, or provide additional insulation properties.
Product Features
Base material High-silica oxygen fiber containing >96% SiO₂. Braided into a tubular sleeve. Continuous temperature rating: 1000°C. Short-term exposure: up to 1200°C.
Silica fiber properties High-purity amorphous silica fiber with excellent thermal stability. Fiber diameter: 7-9 micrometers. Does not produce smoke or toxic gases when exposed to fire.
Melting point Approximately 1500°C. The sleeve maintains structural integrity up to this temperature before fiber fusion occurs.
Thermal conductivity 0.035-0.040 W/m·K at 500°C, providing effective thermal insulation at extreme temperatures.
Surface coating options Silicone coating, graphite coating, or aluminum coating available. Coatings provide additional abrasion resistance and reduce fiber shedding.
Available inner diameters 10mm to 120mm. Standard lengths: 5m, 10m, 20m rolls. Custom diameters and lengths available.
Technical Specifications
| Parameter | Specification |
|---|---|
| Continuous operating temperature | -60°C to +1000°C |
| Short-term peak temperature | Up to 1200°C (less than 15 minutes) |
| Melting point | Approximately 1500°C |
| Silica content (SiO₂) | >96% |
| Fiber diameter | 7-9 micrometers |
| Thermal conductivity | 0.035-0.040 W/m·K at 500°C |
| Tensile strength | > 800 N per 25mm width |
| Elongation at break | < 4% |
| Density | 2.20 g/cm³ |
| Available inner diameters | 10mm, 15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 80mm, 100mm, 120mm |
| Standard length | 5m, 10m, 20m rolls |
| Color | Off-white (natural), tan or gray (after heat exposure) |
Application Scenarios
Metal melt filtration and purification
High-temperature gas dust collection systems
Liquid filtration at elevated temperatures
High-temperature refractory materials
Welding insulation protection
Automotive exhaust and muffler systems
Motorcycle exhaust heat shielding
Industrial high-temperature pipe protection
This high silica fiber sleeve is suitable for extreme high-temperature industrial applications where standard glass fiber sleeves may degrade. Applications include metal melt filtration and purification systems where the sleeve contacts molten metal filtration media, high-temperature gas dust collection equipment operating at 800-1000°C, liquid filtration systems for molten metals and high-temperature fluids, and refractory material handling equipment. The sleeve is also used for welding insulation protection to shield personnel from spatter and heat, automotive and motorcycle exhaust systems for thermal insulation and noise reduction, and general high-temperature pipe protection in industrial furnaces and kilns.
Common Questions and Solutions
What is the difference between high silica fiber and standard glass fiber?
High silica fiber contains over 96% silicon dioxide (SiO₂), compared to approximately 55% in standard E-glass. This higher silica content provides continuous temperature resistance up to 1000°C versus 550°C for E-glass. High silica fiber also exhibits lower thermal shrinkage and better chemical resistance at elevated temperatures.
Does the sleeve require any special handling due to fiber dust?
Yes. Handle the high silica fiber sleeve with gloves, long sleeves, and eye protection. The fibers can cause mechanical skin irritation. After installation, the sleeve releases minimal fiber dust. For critical cleanroom applications, request coated versions that encapsulate fibers and reduce dust release.
Can the sleeve be used for molten metal filtration applications?
Yes. The high silica fiber construction resists wetting by most molten metals and maintains structural integrity at filtration temperatures. However, direct immersion in molten metal for extended periods will eventually cause fiber degradation. For continuous immersion applications, consult technical specifications for specific metal compatibility.
How does the sleeve perform after exposure to high temperatures?
High silica fiber undergoes gradual crystallization above 1000°C, causing the sleeve to become more brittle over time. The sleeve remains flexible at temperatures below 800°C. After multiple thermal cycles above 1000°C, the sleeve may lose flexibility but maintains insulation properties. Replace sleeves that become excessively brittle.
What surface coatings are available and when should they be used?
Silicone coating (up to 260°C) for added flexibility and abrasion resistance. Graphite coating (up to 1200°C) for chemical resistance and reduced fiber dust. Aluminum coating (up to 600°C) for reflective thermal protection. Uncoated sleeve for maximum temperature applications.
How should the sleeve be cut to length?
Cut the sleeve using sharp scissors or a utility knife. For high silica fiber, the ends fray more easily than standard glass fiber. Seal cut ends by dipping in high-temperature silicone or using a high-temperature adhesive. Alternatively, wrap the cut ends with high-temperature tape to prevent fraying.
Installation and Handling Considerations
Wear protective gloves, long sleeves, and safety glasses when handling high silica fiber sleeve. The fibers can cause mechanical skin irritation and respiratory irritation if airborne particles are inhaled.
Measure the outer diameter of the component to be protected. Select a sleeve with inner diameter 15-25% larger than the component diameter. High silica fiber sleeves have less stretch than standard glass fiber sleeves.
For installations requiring the sleeve to slide over long pipe sections, use a pulling cord or fish tape to guide the sleeve. The high silica fiber material has higher friction than standard glass fiber.
Secure the sleeve using stainless steel tie wraps or high-temperature wire every 30-40cm. Do not use plastic zip ties as they melt below 100°C. For vertical installations, secure at both top and bottom to prevent sliding.
Avoid bending the sleeve to a radius less than 3 times the sleeve diameter. High silica fiber is more brittle than E-glass and may crack under tight bends. For tight radius applications, use a wrap-style sleeve or multiple shorter sections.
After the first heat exposure, inspect the sleeve for discoloration, shrinkage, or brittleness. Some color change to tan or gray is normal. Replace the sleeve if visible fiber cracking or material loss is observed. For applications with frequent maintenance access, consider using wrap-style sleeves with Velcro closures for easier removal and reinstallation.
