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Nylon Sleeve for Concrete Sleepers, 30% Glass Filled, Dielectric Strength 20 KV/mm, Flame Retardant V-0
Product Spotlights
High dielectric strength 20 kV/mm, V-0 flame retardant, 30% glass fiber reinforced nylon sleeve for concrete sleepers. Customizable dimensions, excellent chemical resistance, low moisture absorption, and easy installation. Manufactured by Boli since 1998, with global export experience and strict quality control.
Negotiable
MOQ: 1 Piece (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
material:
Nylon 30% Glass Filled
dielectric strength:
20 kV/mm
flame retardant grade:
V-0
Payment & Shipping
Payment Methods:
Port of Shipment:
tianjin shanghai qingdao
Delivery Detail:
Delivery time depends on order quantity.
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material
Nylon 30% Glass Filled
dielectric strength
20 kV/mm
flame retardant grade
V-0
glass fiber content
30%
application
Concrete sleepers, railway, construction
color
Black (customizable)
size
Customizable
brand
Boli
model
Customizable
Anping County Boli Hardware Wiremesh Products Factory, established in 1998 with an annual export value of US$5-10 million, proudly presents our premium Nylon Sleeve for Concrete Sleepers, reinforced with 30% glass fiber. This sleeve is engineered to deliver exceptional dielectric strength of 20 kV/mm and flame retardancy meeting V-0 standards, making it a reliable choice for demanding railway and infrastructure projects. Our decades of manufacturing experience ensure consistent quality and performance that you can trust.
Key Features and Benefits:
- High Dielectric Strength (20 kV/mm): Ensures excellent electrical insulation, reducing the risk of short circuits or arcing in railway electrification systems. This is critical for maintaining safety and reliability in high-voltage environments.
- 30% Glass Fiber Reinforcement: Enhances mechanical strength, stiffness, and dimensional stability, allowing the sleeve to withstand heavy loads and harsh conditions without deformation or cracking. This extends the service life of the sleeves and reduces maintenance costs.
- Flame Retardant V-0 Rating: The material self-extinguishes within 10 seconds of flame removal, preventing fire propagation. This rating is crucial for compliance with strict safety regulations in tunnels, bridges, and other confined spaces.
- Excellent Chemical Resistance: Resists oils, greases, solvents, and UV radiation, making it suitable for outdoor and industrial environments. The sleeve remains durable even when exposed to corrosive substances common in railway maintenance.
- Low Moisture Absorption: Nylon with glass fill absorbs minimal moisture, maintaining stable electrical and mechanical properties in humid or wet conditions. This ensures consistent performance over time.
- Customizable Dimensions: Available in various lengths, diameters, and wall thicknesses to fit different concrete sleeper designs. We can also add features like anti-slip textures or color coding upon request.
- Easy Installation: The sleeve is lightweight and flexible enough to be slid onto sleepers or cables without special tools, reducing labor time and costs. It can be cut to size on-site if needed.
Technical Specifications:
| Property | Value | Test Method |
| Material | Nylon 66 + 30% Glass Fiber | ASTM D4066 |
| Dielectric Strength | 20 kV/mm | ASTM D149 |
| Flame Retardancy | V-0 (UL 94) | UL 94 |
| Tensile Strength | ≥ 120 MPa | ASTM D638 |
| Operating Temperature | -40°C to +120°C | ASTM D648 |
| Water Absorption (24h) | ASTM D570 | |
| Color | Black (customizable) | – |
| Packaging | Cartons, pallets, or as per request | – |
Why Choose Boli Nylon Sleeves?
- Proven Manufacturing Expertise: Since 1998, we have been producing high-quality hardware and wire mesh products, with a dedicated R&D team focused on improving nylon sleeve performance.
- Global Export Experience: Our products are shipped to over 10 markets worldwide including North America, Europe, Southeast Asia, and Africa, meeting diverse international standards.
- Strict Quality Control: Each batch undergoes rigorous testing for dielectric strength, flame retardancy, and mechanical properties to ensure consistency and reliability.
- Cost-Effective Solution: By directly manufacturing in our Hebei factory, we offer competitive pricing without compromising on quality. Our annual export value of US$5-10 million reflects our ability to handle large orders efficiently.
With shipments available from major ports like Tianjin, Qingdao, Shanghai, and Foshan, we ensure timely delivery to your project site. Our team is ready to assist with custom specifications, samples, and technical support. Contact us today to discuss your concrete sleeper sleeve requirements and experience the Boli advantage.
Frequently Asked Questions (FAQ):
- Q: What is the typical lead time for custom-sized sleeves? A: Lead time depends on order quantity and complexity. For standard sizes, we usually ship within 15-20 days. Custom orders may require 25-30 days. Please contact us for a precise quote.
- Q: Can the sleeves be used for both new and existing concrete sleepers? A: Yes, our sleeves are designed for easy retrofit or new installation. They can be installed on existing sleepers if the cable or bolt passes through the sleeve.
- Q: Are these sleeves UV resistant for outdoor use? A: Yes, the nylon material with glass fill offers good UV resistance. However, for prolonged direct sunlight exposure, we recommend adding a UV stabilizer – we can customize this upon request.
- Q: Do you provide a sample before bulk order? A: Certainly. We offer free samples for evaluation, with the customer covering shipping costs. Bulk order discounts are available after sample approval.
- Q: What is the maximum operating temperature? A: The continuous service temperature range is -40°C to +120°C. Short-term peaks up to 150°C are possible without significant degradation.
- Q: How do you ensure the V-0 flame retardancy is maintained? A: Our raw materials are sourced from reputable suppliers, and we conduct in-house UL 94 testing on each production batch. We also provide test reports upon request.
- Q: Can the sleeves be made in other colors besides black? A: Yes, we can produce sleeves in various colors (e.g., red, yellow, blue) for identification purposes. Minimum order quantities may apply for custom colors.
- Q: What is the minimum order quantity (MOQ)? A: For standard sizes, MOQ is typically 1000 pieces. For custom sizes, please inquire. We are flexible for trial orders.
Anping County Boli Hardware Wiremesh Products Factory – your trusted partner for high-performance nylon sleeves. With over 25 years of manufacturing excellence, we deliver products that meet the strictest requirements of the railway industry. Place your order today and enhance the safety and durability of your concrete sleepers.
Send Inquiry to This Supplier
Mr. Geng Xiaozhong
Sales Manager
2Yrs
Hengshui, Hebei, China
2Yrs
Business Type
Manufacturer
Year Established
1998
Annual Export Value
US$5 Million - US$10 Million
Port of Shipment
Tianjin, Qingdao, qingdao, shanghai, foshan
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