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Diphenyl Ether fiberglass cloth laminted Tube （EPGF51/EPGF52/EPGF53 ）
Standard:IEC61212-2;2006
Regular Size: 1000mm-3000mm(support customize)
Wall thickness: ≧0.8mm
Inside Diameter:Ф10mm-Ф600mm(support customize)
Thermal rating: Class H(180℃)
Color:Green
Application:Dry type transformers,SF6 Circuit Breaker,Surge Arrester,load tap changers
Diphenyl Ether fiberglass cloth laminted Tube is a high-performance Class H insulation material. It is typically made from diphenyl ether resin as the matrix and reinforced with fiberglass cloth, manufactured through processes such as rolling, baking, and molding.
This type of tube features excellent heat resistance (with a continuous operating temperature of up to 180°C or higher), outstanding mechanical strength, and superior dielectric properties. It is widely used in heavy electrical equipment such as motors, generators, and transformers.
High Heat Resistance:
Classified as Class H insulation (temperature resistance above 180°C), it maintains stable physical properties under high-temperature conditions.
High Mechanical Strength:
The fiberglass-reinforced structure provides excellent strength and dimensional stability.
Excellent Dielectric Properties:
Offers superior electrical insulation and arc resistance, ensuring the safety of electrical equipment.
Chemical Stability:
Resistant to chemical corrosion and moisture, providing reliable performance in harsh environments.
Bearings and insulating spacers in motors and transformers
Insulating structural components in high-voltage switchgear and generators
Insulating tubing used in aerospace and high-temperature industrial environments
1.Factory: We operate a professional electrical insulation materials manufacturing facility and are ISO-certified.
2.Fully Automated Production: Our advanced automated workshop is supported by a strict and comprehensive quality management system.
3.Quality Inspection: Equipped with four major laboratories and five core product performance testing capabilities.
4.Processing Services: We provide customized processing solutions based on your requirements, ensuring high quality and on-time delivery.
5.Product Certification: Our products comply with UL, SGS, RoHS, and REACH standards. Sample testing is available upon request.
6.Ready Stock Supply: Standard products can be delivered within 7–15 days.
Our company is certified to ISO 9001, ISO 14001, and ISO 45001 management systems. Our products also comply with international certifications and reports including UL, RoHS, REACH, MSDS, CEMT, as well as factory inspection and test reports provided before shipment.
We are a professional manufacturer of Diphenyl Ether fiberglass cloth laminted Tube, which can be customized according to your needs
| Number | Item | Unit | Value |
| 1 | Density | g/cm3 | 1.7-1.8 |
| 2 | Flexural Strength at Perpendicular Lamination （Under Normal） | MPa | ≥80 |
| 3 | Axial Compressive Strength | MPa | ≥70 |
| 4 | Breakdown Voltage at Parallel Lamination （Transformer Oil at 90℃） | Kv | ≥25 |
| 5 | Dielectric Strength at Perpendicular Lamination （Transformer Oil at 90℃） | KV/mm | ≥6-14 |
| 6 | Dielectric Loss Factor（50Hz） | – | ≤0.03 |
| 7 | Water Absorption (3mm) | % | ≤1 |
| 8 | Thermal Index- | 180 |
| Name | Unit | Value |
| Minimum Wall Thickness | mm | 2 |
| Maximum Wall Thickness | mm | 200 |
| Minimum Bore Size | mm | 6 |
| Maximum Bore Size | mm | 1200 |
| Length | mm | 1000-1200 |
