corrugated optical duct COD

corrugated optical duct COD 1)spiral hose 2)co-extrusion forming 3)3-9 sub pipe 4)we make machine and pipe all

    Ccorrugated optical duct COD.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

Description	Outer Duct(mm)					Sub Duct(mm)
sub duct I.D(mm) X Nou.	O.D		THCK		I.D	O.D	THCK	I.D	Nou.
28X5	110		10		90	33	2.5	28	5
32X4	110		10		90	38	3	32	4
36X3	110		10		90	42	3	36	3
36X4	120		10		100	42	3	36	4
50X3	160		17.5		125	59	4	50	3
Tolerance allowed		±mm
Outer Duce  Outer Dia		3
Outer Duce  Inner Dia		2
Outer Duce  Thickness		1
		2
		2
		1

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Test item	Technical Requirement		Test Result
			test data	conclusion
1. Outshape	inner/outer wall smooth, color evenly, no bubble, no cracks, no impurity,no decomposition line		pass	grade
2. Structure and sise	outer duct O.D 115±2		114	grade
	sub duct I.D 32±2		31.9	grade
	sub duct thickness 2.5±2		1.8	grade
	outer duct thickness 1.5±3		2.6	grade
3.KN/m2	whole duct		39.1	grade
	outer duct	≥6.3	18.7	grade
4.Press	give press to whole duct from vertical till shape change to 40% of orignal shape and relax , non broken		pass	grade
5. strech strenth(inner)	≥34.6MPa		34.6	grade
6.impact hammer test	temp 0°C,height 1m, 1kg hammper impact 10 times, above 9 times no broken		pass	grade
7.low tem. Fall down	low temp.-30°C, height 1m, fall down free, no broken		pass	grade
8.inner side friction	≤0.5		0.198	grade
9.length shrinkable %	≤3		1.7	grade

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corrugated optical duct COD