Brand: YILONG
Materials: Phenolic Resin + Kraft Paper
Process: Laminated
Color: Black
Wall thickness: 2-200mm
OD: 10-1200mm
Length: 1000mm
Packaging: Pallet, Wooden Box
Description
XXX/PFCP23/HP2067 Paper Phenolic Tubes are high-performance insulation components designed for demanding electrical and industrial applications. Made from a durable paper-phenolic composite, they combine mechanical strength, excellent electrical insulation, and heat resistance, ensuring reliable performance under mechanical stress, high temperatures, and harsh environments.
We have tubes of below standards:
GOST Standard: 3520
IEC Standard: PFCP21, PFCP22, PFCP23
DIN: HP2065, HP2066, HP2067
NEMA Standard: X, XX, XXX
Features
High mechanical strength, impact and wear resistant
Excellent electrical insulation with high dielectric strength
Heat resistant up to 140°C, stable under thermal stress
Low moisture absorption for humid environments
Chemical resistance to oils and solvents
Durable and long-lasting performance
Applications
Electrical insulation in transformers, capacitors, and motor windings
Protective tubing for electrical circuits and machinery components
Industrial applications requiring high-strength, durable insulation
Environments exposed to heat, moisture, and chemicals
Technical Data Sheet
| No. | Item | Unit | Range | Phenolic Paper Lanimates | |||
| PFCP21 | PFCP22 | PFCP23 | 3520 | ||||
| X | XX | XXX | — | ||||
| HP2065 | HP2066 | HP2067 | — | ||||
| 1 | Flexural Strength (Perpendicular to Laminations) | MPa | ≥ | 100 | 100 | 100 | 90 |
| 2 | Compressive Strength (Axial) | MPa | ≥ | 100 | 80 | 100 | 60 |
| 3 | Shear Strength (Nominal Dia ≤100 mm) | MPa | ≥ | 70 | 70 | 70 | 15 |
| 4 | Electric Strength ⊥ (in oil at 90°C, wall thickness 1.6 mm) | kV/mm | ≥ | — | 11.6 | 7.8 | 8 |
| 5 | Breakdown Voltage Parallel to Laminations (in oil at 90°C) | kV | ≥ | 15 | 50 | 25 | 25 |
| 6 | Dissipation Factor (1 MHz) | — | ≤ | — | — | — | — |
| 7 | Dissipation Factor (48–62 Hz) | — | ≤ | — | — | — | 0.03 |
| 8 | Dielectric Constant (1 MHz) | — | ≥ | — | — | — | — |
| 9 | Insulation Resistance After Water Immersion (Nominal thickness ≥10 mm, nominal inner dia ≥8 mm) | MΩ | ≥ | 1 | 1 | 5 | 1 |
| 10 | Heat Resistance | ℃ | ≤ | 120 | 120 | 120 | 120 |
| 11 | Water Absorption | mg/cm² | ≤ | 10 | 10 | 5 | 8 |
| 12 | Density | g/cm³ | — | 1.3-1.4 | 1.3-1.4 | 1.3-1.4 | 1.3-1.4 |
| 13 | Flammability | Class | — | — | — | — | — |
| 14 | Standard | IEC 61212-3-1:2006 | GB | ||||
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