Characteristics of Silicon Core Pipe:
The Optical cable is very popular in the 21th century that go with the fast development of telecom industry. It is inevitable that strengthen the protection to optical cable. At present, the silicon core pipe is most advanced cable jacket material, good performance, low price, convenient to construction and durable, instead of multi-holes concrete pipes, PVC pipes and HDPE double side corrugated pipes step by step, become the perfect products in cable jacket material.
To catch up with the development of world telecom industry, our company researched and develop this product by our abundant technical strength and rich production experience through two years hard work. Its main characteristics are:
1.Adopt the mode of multi-machine co-extrusion, silicon core layer is synchronizely embedded in the pipe. It will be lubricated and not be stripped forever.
2.The friction coefficient of the inner wall is very small. Optical cable (electric cable) can be repeatedly extracted and tensioned in the pipe. Trough using cable blowing machine, one time blowing length can be 1000 to 2000 meter under normal conditions.
3.Good tightness, waterproof, damp-proof, can avoid the damage by rodent animals.
4.With great ring stiffness and toughness. In construction, its bending radius should not be less than 10 times of the external diameter of the pipe.
5.Aging-resistant, anticorrosion of chemicals. With long service life, and will not deteriorate within 50 years in the earth.
6.Good weather resistant ability, and its suitable temperature scope is from -40℃ to 100℃.
7.Convenient in construction. This will save time and the project cost is only 30% of the PVC pipe.
Specification and Colors of the Products
1.Specification of the Products
Our company provides customers with the following specifications of silicon core pipes or light pipe: Φ50/42, Φ48/40, Φ46/38, Φ40/33, Φ34/28, Φ32/26 and so on. We also can make products according to customers'requirement.
2.Colors of the Pipes
Our company can produce many pure color silicon core pipes. Longitudinal color stripes of various colors can be enchased on certain pure color pipes. In this case, different pipes can be distinguished when laid in the same ditch. Such as 14, 23, 32, and so on.
3.Recommended specification and colors
To improve the antioxidation ability of the silicon core pipes and prolong its service life, we recommend black (substrate) silicon core pipes with longitudinal color stripes.
For the economy of the total project cost and to facilitate the loading and unloading, transportation and construction of products, and after verifying by the practice of customers from all areas, silicon core pipes with diameter of Φ40/33 and the length of each roll 2000m are the best one for design and construction. Of course, we can produce 500m, 1000m, 1500m, 3000m, and any lengths products according to customers requirements.
The Notify of Ordering
1.We have many specification silicon core pipes for customers’ selection.
2.Pipe Diameter:
Pipe diameter decided by the outer diameter of cables. Usually, the referring parameter according to the rate between inner diameter (ID) of silicon core pipes and outer diameter (OD) of cables, the parameter will be the best in the range 2—2.3, it will lay longer pipes when select blowing method. The common silicon core pipe is (OD/ID): 40/33, 50/42, 32/26. We can refer the following table for select appropriate pipes:
| OD of Cable (mm) |
≤11 |
12 |
12.5 |
13.5 |
14 |
15 |
16 |
| ID of Silicon Core Pipe(mm) |
24 |
26/28 |
26/28 |
26/28 |
28/33 |
33 |
33 |
| OD of Cable (mm) |
17 |
18 |
19 |
20 |
21 |
21.5 |
23 |
| ID of Silicon Core Pipe(mm) |
33 |
33/42 |
33/42 |
33/42 |
33/42 |
42/50 |
42/50 |
| OD of Cable (mm) |
24 |
25 |
26 |
28 |
30 |
36 |
| ID of Silicon Core Pipe(mm) |
42/50 |
42/50 |
50/55 |
50/55 |
50/55 |
50/55 |
Blowing machines can connect silicon core pipe from OD 25mm to 63mm. The machine con not work if the OD exceed this range, but can adopt other method (such as traction method) to install cables.
The rate of silicon core pipes’ ID and OD will influence the blowing length directly. According to the experience from Europe and America, the silicon core pipe of 40/33 is the most popular, its strength, blowing length and efficiency can get to the best condition. We will select ID=42mm or big pipes only when the cable diameter bigger than 18mm and heavy copper core cable. It is worth to notice that many reasons effect affect the blowing length, the most important is diameter of silicon core pipe, weight of cable, outer material of cable and hardness, second including air pressure, air current, terrain and so on. Usually, the blowing length can get to 1000—2000m per time. So, many reasons affect the blowing length, it is necessary that customers let us know the OD of cables, weight per meter, outer material and general route. (It will be better if we can get a 50cm sample). We can input related data to special computer system, through accurate analysis, then recommend appropriate sizes to customers. From practice and theory, the blowing length is not ideal when OD bigger than 36mm and heavier than 1.5kg/meter, only 500m per time.
3.Thickness
It will have more outstanding performance of corrosion resistance when the silicon core pipe thicker and stronger. But if the pipe wall is too thick, it will affect the curving, and difficult to construction, the cost will higher.
The thickness of silicon core pipe from 2mm to 6mm. We can make special wall thickness according to customers’ requirement. Common thickness is 3.0mm, 3.5mm, 4.0mm.
4.Length:
Order and plate length requirement should confirm according to actual engineering and man well space.
When lay silicon core pipes, it will have some nature curving, so the actual length of pipes should longer 0.4—0.7% than ground. If we neglect the above notice, it will cause to add the quantity of short sections and fittings.
At president, the standard length of Φ50/42 silicon core pipe is 1500m/plate, the length of Φ40/33 is 2000m/plate, the length of Φ32/26 is 3000m/plate. If customers have special requirement, we can make it under then condition of convenient transportation and construction.
5.Color:
Customers can select any pure color, or inlay longitudinal strip in some pure color pipes. According to many customers comment and actually using indicate that: the longitudinal strip silicon core pipe is most popular, and more economy.
6.Packing:
Our pipes have unwrapped packing and plate packing. The plate packing is convenient to load and unload, easy to construction. |
