6-core optical fiber heat shrink tubing specifications
6-core optical fiber heat shrink tubing typically features cross-linked polyolefin with stainless steel reinforcement, operating temperatures from -45°C to +100°C, and provides mechanical and environmental protection for fiber splices.
Material and Construction
6-core heat shrink tubing is generally made of cross-linked polyolefin, which ensures durability, flexibility, and resistance to heat shocks. Many designs include a 304-grade stainless steel reinforcing rod to provide mechanical strength at the fusion splice area, prevent fiber breakage, and maintain optical transmission performance . The stainless steel edges are polished to be burr-free, reducing the risk of fiber damage during installation .
Dimensions
- Inner Tube Diameter: Typically around 1.3 mm per fiber core, adjustable for multi-core configurations .
- Outer Tube Diameter: Approximately 2.6 mm per fiber core, depending on the number of cores and reinforcement .
- Length: Commonly 60 mm, though custom lengths are available .
- Multi-Core Compatibility: Designed to accommodate 6 cores, with individual access to each fiber splice if needed .
Thermal and Environmental Ratings
- Operating Temperature: -45°C to +100°C, suitable for most indoor and outdoor applications .
- Minimum Full Recovery Temperature: Around 120°C to ensure proper shrinkage and sealing .
- Moisture and Corrosion Resistance: Stainless steel reinforcement provides excellent resistance, even in coastal or humid environments .
- Airproof and Humidity Resistance: Sealing structure maintains splice integrity under varying environmental conditions .
Mechanical and Optical Protection
- Strain Relief: Reinforced tubing provides mechanical support to prevent fiber breakage at the splice point .
- Optical Transmission Preservation: The design ensures minimal impact on optical performance while protecting the fusion joint .
- Ease of Installation: Clear sleeves allow visual inspection of splices before shrinkage, and smooth edges reduce installation risk .
Additional Features
- Durability: Resistant to heat shocks, cracking, dripping, or flowing during shrinkage .
- Customization: Multi-core tubing can be customized for specific fiber counts, diameters, or lengths .
- Compatibility: Works with standard fusion splicers and heat-shrink ovens, and can be integrated into splice trays . In summary, 6-core optical fiber heat shrink tubing combines cross-linked polyolefin with stainless steel reinforcement to provide robust mechanical protection, environmental resistance, and reliable optical performance for fiber optic splices, with standard dimensions and temperature ratings suitable for most industrial and field applications .
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