COD color pipe

COD color pipe C.O.D Corrugated Optic Duct It uses friction coefficient extremely low modified HDPE is the primary data, in the structure take the friction coefficient extremely low long 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 Optiroad C.O.D. opens new era of telecommunication backbone with its built-in multiple inner ducts (3 to 5) inside of the outer duct by means of assembling cable ducts in the course of production. Both inner and outer ducts are made of HDPE (High Density Polyethylene) having high flexibility enabling rolled-on spool regardless of numbers of inner ducts built-in. Coiling Length of C.O.D.each reel may practically coiled up to 500 meters, however, coiling even 1,000 meters of small dimension model is also available. flexible and lengthy product of COD, it enables quick installation reducing considerable consecutive work quantities such as trench excavation, inner duct insertion DescriptionOuter Duct(mm)Sub Duct(mm)sub duct I.D(mm) X Nou.O.DTHCKI.DO.DTHCKI.DNou.28X51101090332.528532X4110109038332436X3110109042336336X41201010042336450X316017.5125594503Tolerance allowed±mm Outer Duce Outer Dia3 Outer Duce Inner Dia2 Outer Duce Thickness1 2 2 1 Test itemTechnical RequirementTest Resulttest dataconclusion1. Outshapeinner/outer wall smooth, color evenly, no bubble, no cracks, no impurity,no decomposition linepassgrade2. Structure and siseouter duct O.D 115±2114gradesub duct I.D 32±231.9gradesub duct thickness 2.5±21.8gradeouter duct thickness 1.5±32.6grade3.KN/m2whole duct39.1gradeouter duct≥6.318.7grade4.Pressgive press to whole duct from vertical till shape change to 40% of orignal shape and relax , non brokenpassgrade5. strech strenth(inner)≥34.6MPa34.6grade6.impact hammer testtemp 0°C,height 1m, 1kg hammper impact 10 times, above 9 times no brokenpassgrade7.low tem. Fall downlow temp.-30°C, height 1m, fall down free, no brokenpassgrade8.inner side friction≤0.50.198grade9.length shrinkable %≤31.7grade //