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Communication Pipeline Series
HDPE Silicon Core Pipe
Standard: GB/T 24456-2009
1. Size: 32/26, 34/28, 40/33, 46/38, 50/41, 63/54, etc.
2. Length: Coil Length 1000m-3000m A Roll.
3. Material: PE80, PE100 & Silicon materials.
4. Standard: GB/T 24456-2009, JT/T496-2004.
5. Delivery: 10-20 days depending on the total quantity.
- Introduction
- Feature
- Specification
- Physical Parameter
- Application
- Download
Introduction
HDPE Silicon Core Pipe is a high-density polyethylene (HDPE) pipe with a silicon-core structure. It consists of a silicon core embedded inside an HDPE outer pipe, forming a double-layer composite structure. This pipe is mainly used for the protection and installation of communication cables. It provides a reliable protective solution to prevent cable damage during installation and delivers excellent mechanical and shielding performance.
Description of HDPE (High Density Polyethylene) Silicon Core Pipe
HDPE silicon-core pipes are specially designed as protective tubing for communication optical and electrical cables. These pipes are formed via co-extrusion of HDPE and silicon core materials, which creates an inner surface with an ultra-low friction coefficient. Thanks to their durability and the lubricating, low-friction solid channel inside, HDPE silicon-core pipes offer exceptional convenience for cable installation. They represent one of the most advanced solutions for communication cable protection worldwide.
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Feature
Benefits of (High Density Polyethylene) Silicon Core Pipe
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The inner wall of the HDPE silicon core pipe is integrated with a solid permanent lubricant.
The inner silicon core layer of the HDPE silicon core pipe is co-extruded synchronously with the HDPE pipe wall. It is evenly distributed across the entire inner surface, resistant to peeling or delamination, and boasts the same service life as the pipe itself.
The inner silicon core layer of the HDPE silicon core pipe shares identical mechanical and physical properties with the pipe body.
The friction performance of the inner silicon core layer remains consistent over time, allowing cables to be pulled through and retrieved repeatedly inside the pipe.
The inner silicon core layer is non-reactive with water, enabling pipe flushing with water in the event of an accident.
The HDPE silicon core pipe features a small bending radius (10 times its outer diameter).
The pipe can be bent freely to adapt to the working environment and terrain conditions without any pre-treatment.
Specification
| Specification DN |
Outside diameter dem/mm |
Wall thickness and tolerance mm |
Out-of-roundness % |
|||
| Nominal value | Tolerance | Standard Value | Tolerance | Before Coiling | After Coiling | |
| 32/26 | 32 | 0.3 | 2.5 | 0.3 | ≤2 | ≤3 |
| 0 | 0 | |||||
| 34/28 | 34 | 0.3 | 3 | 0.3 | ≤2 | ≤3 |
| 0 | 0 | |||||
| 40/33 | 40 | 0.4 | 3.5 | 0.35 | ≤2.5 | ≤3.5 |
| 0 | 0 | |||||
| 46/38 | 46 | 十0.4 | 4 | 0.35 | ≤3 | ≤5 |
| 0 | 0 | |||||
| 50/41 | 50 | 0.5 | 4.5 | 0.4 | ≤3 | ≤5 |
| 0 | 0 | |||||
| 63/54 | 63 | 0.6 | 5 | 0.4 | ≤3 | ≤5 |
| 0 | 0 | |||||
| The specification dimensions and tolerances of ribbed pipes shall be determined through negotiation between the supplier and the buyer. | ||||||
| Specification(DN) | Nominal Length/m | Length Deviation / % |
| 32/26 | 3000 | ≥+0.3 |
| 34/28 | 3000 | ≥+0.3 |
| 40/33 | 2000 | ≥+0.3 |
| 46/38 | 1500 | ≥+0.3 |
| 50/41 | 1500 | ≥+0.3 |
| 63/54 | 1000 | ≥+0.3 |
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Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.
Physical Parameter
| Physical and chemical properties of HDPE silicon core tube GB/T 24456-2009 |
||||||
| Item | 32/26 | 34/28 | 40/33 | 46/38 | 50/41 | 63/54 |
| Outer wall hardness/HD | ≥59 | |||||
| Inner wall friction coefficient | static state：≤0.25（Plate method, standard test rod for PE-HD） | |||||
| dynamic condition：≤0.15（Round drum method） | ||||||
| Tensile yield strength/MPa | ≥20 | |||||
| Elongation at break/% | ≥500 | |||||
| Maximum traction load/N | ≥5000 | ≥6000 | ≥8000 | ≥10000 | ≥11000 | ≥12000 |
| Cold bending property | According to the bending radius below, the silicon core tube of the corresponding specifications should be cold bending test, there should be no cracking and obvious stress whitening phenomenon. | |||||
| 300mm | 300mm | 400mm | 500mm | 625mm | 750mm | |
| Ring-stiffness/ （kN/m2） |
≥50 | ≥40 | ≥30 | |||
| Recovery rate/% | When the deformation of the outer diameter is 50% of the original outer diameter under vertical pressure, it is immediately unloaded, the pattern is not broken and not stratified, and the inner and outer diameter can naturally recover to more than 85% of the original in 10min. | |||||
| Resistance to drop hammer impact | At a temperature of -20°C, impact 10 samples with 15.3Kg weight hammer, and more than 9 (including) should pass through | |||||
| Hydraulic resistance | Under the condition of temperature 20°C and water pressure 2.0MPa, the sample was kept for 15min, and no visible cracks or cracks were detected。 | |||||
| Longitudinal shrinkage ratio/% | ≤3.0 | |||||
| Resistance to environmental stress cracking | 48 hours, failure number ≤20% | |||||
| Resistance to hydrocarbons | After soaking with heptane for 720h, 528N external force is applied to the silicon core tube, the sample is not damaged, and the permanent deformation is not more than 5%. | |||||
Feel free to contact us for product catalogs, quotations and professional technical support.
Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.
Application
It is suitable for outdoor communication cables, public information networks, cable television systems, highways and other communication cable transmission projects.
Feel free to contact us for product catalogs, quotations and professional technical support.
Please contact us by email: sales@hengdepipes.com or WhatsApp: +86 15265578500.
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