Structure:
Orange-color wall of plasticized PVC, white coil of hard PVC, smooth on inside.

Application:
As tube or duct for opto-telecommunication cables in places where the cables must be passed at sharp angles, in groups (bundles) with other cables, along trestle bridges, in jointing chambers. In telephone exchange rooms they may be used on agreeing with the designer.

Temperature range: -20^oC to + 55^oC

Quality Requirements:
TWT-ZP-01/2001

Internal
diameter 
(mm)

Internal
diameter
tolerance 
(mm)

Wall
thickness 
(mm)

Weight 
(g/mm)

Bending
radius
(mm)
in temp. 
23+/-2^oC

18
20
25
32
40
50

+/- 0,75
+/- 0,75
+/- 1,25
+/- 1,25
+/- 1,50
+/- 1,50

3,00
3,00
3,00
3,30
3,80
4,00

260
270
310
400
500
750

75
80
120
150
180
220