Micro duct

Brief Introduction of Micro duct

Cable Micro Multi-ducts is made by one micro duct or more than one micro duct grouped according to a certain arrangement order with outer sheathing layer. It can hold more conduits in the limited space.

The structure of Cable Micro duct bundle has some characteristics as follows:

 1. The technical specification of micro ducts grouped into tube bundle fully comply with the above-mentioned specification of micro duct;

2. Through the color, arrangement definition, ie, the position of each micro duct in the tube bundle, the construction becomes convenient so as to effectively avoid the misconnect of micro ducts;

3. Inner micro ducts and the outer sheathing layer can be relatively separated through a special manufacturing technology and product formulation so as to convenient for construction and the connection of inner micro ducts;

4. Many tube bundles placed into the same one trench can be distinct through the different color of outer sheathing layer of tube bundle or different strips on the outer sheathing layer of tube bundle;

5. The surface of outer sheathing layer of tube bundle is smooth without defects, such as visible holes or scars.

The HDPE raw material used for the manufacture of outer sheathing layer of tube bundle has the following technical specifications:

After having processed trial production and product testing, other HDPE raw material which can comply with the above technical specification are also can be used for the manufacture of tube bundle

Note: The standard tube bundle product is non-flame retardant duct. If used in the sites where the fire protection is required, we suggest adopting flame retardant conduit or taking other fire protection measures.

Classification and Structure Definition of Cable Micro duct Bundle

The appearance of whole tube bundle has a certain solid color, Hawei can provide the full color

spectrum to customers as required for choice, or also add the marking strips as required.

In general, the typical section of tube bundle is as follows: (take 7holes tube bundle as example) 

Picture 7: Section of Tube Bundle

Type and Dimension Deviation of Cable Micro duct  Bundle

Unit: mm

Picture 4:Type and Dimension Deviation of Tube Bundle

Note:

TB   / JTB      Tube Bundle or Straightened Tube Bundle

**/**mm         OD/ID of Inner Micro ducts

*                      Quantity of Inner Micro ducts in Tube Bundle

Microtubes can be bundled in various configurations from 1-way to 24-way. These assemblies are available in variety of sheathing options suitable for Direct Install, Direct Bury or Fire Retardant (LSZH) applications and can be customised to meet specific environmental challenges. Please contact us to discuss your individual requirements.