ПНД ХПК линии производства труб

COD (corrugated optic duct) production line, Cable protection pipe extrusion line, COD pipe making/plant The COD pipe production line was the changjie machinery independently develops the development in recent years, and in domestic took the lead the new product which promoted, had the output to be high, the craft was simple, the automaticity was high, characteristics and so on ease of operation, have filled the domestic gap, was in the domestic advanced standard. The changjie brand COD pipe production line output velocity reaches as high as 1.5m/min, each end product length may amount to 500 meters. The processing technology has surpassed the world advanced level! C.O.D is the Corrugated Optic Duct pipes English abbreviation. This was in summarized formerly each kind of fiber optics, advantages in the cable guide foundation, became the new generation high performance fiber optics drive pipe by the brand-new idea development. It uses friction coefficient extremely low modified HDPE is the primary data, in the structure take the friction coefficient extremely low leng wall tube as the sub-tube, bears the high pressure, the easy curving corrugated pipe is the female tube, after compound squeezes out becomes. It bears the high pressure, but is curving, has the discrimination, the easy construction is the main feature, in the physical property, the service life, aspects and so on project construction has the superiority which other many products are unable to compare. . Material and strength C.O.D. pipe is made of H.D.P.E (high-density polyethylene), so is strong against impacts and compressive strength and well endures the winter season. Because of its track surface ( ), it is strong against earth pressure. In addition, the outer pipe and the inner pipe are in a body, there is no change in length (elongation or shrinkage) after being laid.2. Constructability and stability As the inner and outer pipes are in a body, there is no difficulty of inserting the inner pipe. In addition, a roll can be as long as 50 500m, it is possible to lay it between two manholes using heavy equipment. Small obstacles can be passed around thanks to the flexible track surface ( ) and it is possible to skip the installation of manholes at curves of roads. As the outer pipe has track-type surface, it is highly resistant against earth pressure. In addition, as it is made of H.D.P.E that maximizes stability without break. 3. Superiority of product As the product contains the outer and inner pipes in a body, it maximizes the utilization of the space inside the outer pipe. In addition, when it is laid on a sinking or weak ground, the outer pipe protects cables without falling off. It can also be easily installed under bridges or buried in sidewalks. Because the inner pipe is well arranged and its surface is coated with embossing silicon, cables can be laid with less friction and flexibility is maximized for curved sections. When optic cable is laid through a blowing method, it is well inserted over 1km even under the worst condition such as curves and U-turns. Comparison of Optic-Cable-Protecting Communication Pipes Existing F.C pipe C.O.D pipe Material and strength P.V.C vulnerable to external impacts H.D.P.E strong against external impacts and coldness in the winter season. Pipe joints may fall off by earth pressure on slopes. Thanks to track-typed ( ) surface, it is strong against earth pressure. When pipes are installed, they may elongate or shrink due to temperature. As the inner and outer pipes are in a body and the outer surface is of track type ( ), pipes do not elongate or shrink much after buried. Constructability Because each outer pipe is as short as 6m, there are many joints and manholes have to be installed at curves. As each roll is as long as 50 500m, it can link two manholes without joint in the middle