MICRO DUCT

HDPE MINI DUCT FOR INSTALLING MICRO FIBER CABLES

Features & Benefits

  • Optimizes system design and utilization
  • Available in various sizes
  • Single and multiple (bundled) configurations for specific project needs
  • Permanently lubricated with our unique Perma-LubeTM process for longer micro fiber cable installations
  • Variety of colors available for easy identification
  • Sequential foot or meter markings
  • Standard stock lengths for faster service
  • Custom lengths are also available

Micro Fiber Cable Installations

MD is designed for installation into new or existing conduits to maximize conduit capacity. Mini ducts are used to sub-divide 3/4" through 2" I.D. conduits facilitating future installation of additional micro cables. The internal rib profile, in combination with our permanent factory lubrication process, provides for optimum productivity by reducing friction between the micro cable and the duct. MD system reduces “Last Mile" costs while optimizing system flexibility for future fiber installations.

STANDARD MD SIZES

SIZE
MM (INCHES)		 AVE. OD
MM (INCHES)		 WALL
MM (INCHES)		 MIN. ID
MM (INCHES)		 BEND RADIUS
MM (INCHES)		 PULL STRENGTH
(LBF) @ 3% STRAIN
10/8 (.394/.315) 10 ± 0.10 (.394 ± .004) 1.00 + 0/-0.1 (.039 + 0/-0.004) 7.92 (.312) 203 (8) 126
12/10 (.472/.394) 12 ± 0.10 (.472 ± .004) 1.00 + 0/-0.1 (.039 + 0/-0.004) 9.90 (.390) 279 (11) 154
14/10 (.551/.394) 14 ± 0.10 (.551 ± .004) 2.00 + 0/-0.1 (.078 + 0/-0.004) 9.90 (.390) 152 (6) 320
16/12 (.625/.472) 16 ± 0.10 (.625 ± .004) 2.00 + 0/-0.1 (.078 + 0/-0.004) 11.76 (.463) 178 (7) 374

MD IN CONDUIT

Conduit Size (id)
mm (inches)		 10/8-mm 12/10-mm 14/10-mm 16/12-mm
19 (0.75) 1 1 - -
25 (1.00) 3 2 1 1
32 (1.25) 5 4 2 1
38 (1.50) 8 6 3 2
50 (2.00) 10 8 7 4
  1. MD is often used to divide larger conduits into smaller conduits. The table above shows how many mini ducts will fit into the common diameters of conduit from 3/4" to 2" in diameter.
  2. Table above is for field installed bundles. For number of MD's that can be Factory preassembled in conduit please contact.
 

MD Configurations

Multiple lengths and color combinations of MD are provided in several ways:

  • Paralleled on reels
  • Preinstalled in conduit
  • Bundled and jacketed

Material Specification

MD is designed to meet or exceed all industry standards assuring maximum protection for micro fiber cables in accordance with ASTM F 2160. Manufactured from high-density polyethylene in accordance with ASTM D 3350, the duct is available in black or solid colors to provide easy route identification.

MD PHYSICAL PROPERTIES

Physical Properties PE3408 Material Designation Code
Test Methods NOminal Values
Minimum Cell Classification ASTM D 3350 334480 C (Black) or E (Color)
Density ASTM D 1505 >0.940-0.947 gm/cc
Melt Index Flow Rate ASTM D 1238 (<0.4 to 0.15) 8.5gm/10 min
Flexural Modulus (minimum) ASTM D 790 (80,000 t0 110,000 psi)
Tensile Strength @ yield ASTM D 636 3000 - <3500 psi
ESCR Condition B ASTM D 1693 F10, in 96 hrs. 10% Igepal solution
Carbon Black (UV Protection) ASTM D 1603 2% minimum

 

Standard Colors:

Blue, Orange, Green, Brown & Gray

Standard Bundled Colors:

Blue, Orange, Green, Brown, Gray, Yellow & White

Optional Colors Available:

Terra Cotta, Pink, Lilac, Buff, Pipe Green, Red & Black

HDPE Innerduct