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Microduct 7/4 mm

TWD 7/4 mm Primary Tube, Striped

  • For direct burial
  • 7/4 mm microducts
  • Low friction inner surface
  • The colour of the tubes is transparent
Three white microducts with respectively red, green and blue stripes

The thick walled microduct are designed with an inner low friction surface that enables installation of air-blown fibers or nano cables. The thick inner wall of the microducts allow for installation directly into the ground without the need for additional protection.

7/4 mm microducts are optimized for installation of air-blown fibers and nano cables. The microducts have a solid low-friction innner surface for best blowing performance.

Microducts: HDPE

Technical Information

Product Color The individual transparent microducts are identified by their colour stripe in accordance with the DIN VDE 0888 standard.
Color Code DIN0888
Temperature, Operation [°C] -40 to +60
Temperature, Storage [°C] -40 to +60
Temperature, Installation [°C] -20 to +50

Abrasion: IEC 60794-1-2-E2B(1)
Kink: IEC 60794-1-2-E10, 20 x outer diameter
Impact: IEC 60794-1-2-E4
Crush: IEC 60794-1-2-E3
Tensile: IEC 60794-1-2-E
Bend: IEC 60794-1-2-E11A
Torsion: IEC 60794-1-2-E
Flexibility: IEC 60794-1-2-E8
Inner Clearance: IEC 60794-5-20, IEC 60794-5-10, Ann. D


Microducts have markings showing the type and tube length. The individual microducts are identified by their colors (stripes).

12 different colors are available: orange, yellow, red, white, green, violet, blue, grey, turquoise,black, brown, pink.