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
XX/PFCP22/HP2066 Paper Phenolic Tubes are high-performance insulation components designed for industrial and electrical applications. Made from a premium paper-phenolic composite, they combine mechanical strength, excellent electrical insulation, and heat resistance to provide reliable performance under harsh conditions. These tubes maintain durability and stability even at high temperatures and under mechanical stress, making them suitable for critical electrical and industrial uses.
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, resistant to cracking and deformation
Excellent electrical insulation with high dielectric strength
Heat resistant, stable up to 120°C (Class E)
Low moisture absorption for humid environments
Chemical and environmental resistance
Long-lasting durability
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 chemical agents
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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