Welcome to North Coast Conduit

North Coast Conduit began manufacturing HDPE Innerduct and Conduit in 2010 as an alternative source to the ever decreasing choice of suppliers. Because of North Coast's size and attention to quality they offer the best possible value in the industry.

Smoothwall Innerduct

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North Coast Conduit Smoothwall is manufactured from High Density Polyethylene (HDPE) and is intended for use in underground, aerial, and innerduct applications. Smoothwall offers superior protection and serves as an ideal raceway for future cable expansion.

Smoothwall Innerduct is available in ½", through 4" diameters. Options include:

  • Internal ribs
  • Silicone pre-lube
  • Aerial UV protection
  • Pre installed pulling tapes
  • A large variety of colors and striping
  • Multiple lengths on a reel ½" through 2"

Smoothwall Innerduct is offered in custom lengths on collapsible steel reels or in straight lengths. A full line of couplers and terminal connectors are also available.


Standards

North Coast Conduit Innerduct is manufactured according to the following industry standards:

ASTM F 2160
Solid wall High Density Polyethylene (HDPE) Conduit based on Controlled Outside Diameter (O.D.).

NEMA TC-7
Electrical Plastic Conduit.


Resin Properties

The resin properties meet or exceed the values listed below for HDPE:

ASTM Test Description Values HDPE
D-1505 Density g/cm³ 0.941-0.955
D-1238 Melt Index, g/10 min Condition E 0.05 - 0.50
D-638 Tensile strength at yield (psi) 3000 psi min.
D-1693 Environmental Stress Crack Resistance Condition B,. F10> 96 hr.
D-790 Flexural Modulus, MPa (PSI) 80,000 min.
D-746 Brittleness Temperature -75°C

Schedule 40 ASTM F2160 / NEMA TC-7 EPEC-40 * ETL Listed to UL 651A

Size Type Min Wall (in.) AVG OD (in.) ID Smooth (lb/ft.) ID Ribbed (lb/ft.)
1/2" SCH 40 0.109 0.840 0.111 0.117
3/4" SCH 40 0.113 1.050 0.148 0.155
1" SCH 40 0.133 1.315 0.218 0.229
1-1/4" SCH 40 0.140 1.660 0.294 0.309
1-1/2" SCH 40 0.145 1.900 0.351 0.369
2" SCH 40 0.154 2.375 0.471 0.495
2-1/2" SCH 40 0.203 2.875 0.744 0.781
3" SCH 40 0.216 3.500 0.973 1.022
4" SCH 40 0.237 4.500 1.387 1.456

Schedule 80 ASTM F2160 / NEMA TC-7 EPEC-80 * ETL Listed to UL 651A

Size Type Min Wall (in.) AVG OD (in.) ID Smooth (lb/ft.) ID Ribbed (lb/ft.)
1/2" SCH 80 0.147 0.840 0.139 0.146
3/4" SCH 80 0.154 1.050 0.189 0.198
1" SCH 80 0.179 1.660 0.277 0.291
1-1/4" SCH 80 0.191 1.660 0.383 0.402
1-1/2" SCH 80 0.200 1.900 0.465 0.488
2" SCH 80 0.218 2.375 0.644 0.676
2-1/2" SCH 80 0.276 2.875 0.982 1.031
3" SCH 80 0.300 3.500 1.315 1.381
4" SCH 80 0.337 4.500 1.923 2.019

SDR Dimensions

SDR 7

Size SDR Min Wall (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1/2" 7 0.120 0.840 0.119 0.125
1" 7 0.188 1.315 0.288 0.302
1-1/4" 7 0.237 1.660 0.458 0.480
1-1/2" 7 0.271 1.900 0.600 0.630
3" 7 0.500 3.500 2.037 2.139
4" 7 0.643 4.500 3.367 3.535

SDR 9

Size Type Min Wall (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1/2" 9 0.093 0.840 0.098 0.103
3/4" 9 0.117 1.050 0.152 0.159
1" 9 0.146 1.315 0.234 0.246
1-1/4" 9 0.184 1.660 0.370 0.388
1-1/2" 9 0.211 1.900 0.485 0.509
2" 9 0.264 2.375 0.759 0.797
3" 9 0.389 3.5 1.648 1.730
4" 9 0.500 4.500 2.722 2.859

SDR 11

Size SDR Min Wall (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1/2" 11 0.076 0.840 0.084 0.088
3/4" 11 0.095 1.050 0.128 0.135
1" 11 0.120 1.315 0.199 0.209
1-1/4" 11 0.151 1.660 0.312 0.328
1-1/2" 11 0.173 1.900 0.408 0.428
2" 11 0.216 2.375 0.636 0.668
2-1/2" 11 0.261 2.875 0.930 0.976
3" 11 0.318 3.500 1.379 1.448
4" 11 0.409 4.500 2.281 2.395

SDR 13.5

Size SDR Min Wall (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1/2" 13.5 0.062 0.840 0.072 0.075
3/4" 13.5 0.078 1.050 0.110 0.115
1" 13.5 0.097 1.315 0.167 0.176
1-1/4" 13.5 0.123 1.660 0.263 0.276
1-1/2" 13.5 0.141 1.900 0.342 0.359
2" 13.5 0.176 2.375 0.528 0.555
2-1/2" 13.5 0.213 2.875 0.775 0.813
3" 13.5 0.259 3.500 1.146 1.203
4" 13.5 0.333 4.500 1.894 1.989

SDR 15.5

Size SDR Min Wall (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
3/4" 15.5 0.068 1.050 0.098 0.103
1" 15.5 0.084 1.315 0.149 0.156
1-1/4" 15.5 0.107 1.660 0.234 0.245
1-1/2" 15.5 0.123 1.900 0.304 0.319
2" 15.5 0.153 2.375 0.467 0.490
3" 15.5 0.226 3.500 1.010 1.061
4" 15.5 0.290 4.500 1.668 1.751

SDR 17

Size SDR Min Wall (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1/2" 17 0.062 0.840 0.072 0.075
3/4" 17 0.062 1.050 0.091 0.096
1" 17 0.077 1.315 0.138 0.145
1-1/4" 17 0.098 1.660 0.217 0.228
1-1/2" 17 0.112 1.900 0.281 0.295
2" 17 0.140 2.375 0.432 0.453
3" 17 0.206 3.500 0.928 0.974
4" 17 0.265 4.500 1.534 1.611

SDR 21

Size SDR Min Wall (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1" 21 0.063 1.315 0.107 0.113
2" 21 0.113 2.375 0.358 0.376
4" 21 0.214 4.500 1.255 1.318

SDR 26

Size SDR Min Wall (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
2-1/2" 26 0.111 2.875 0.419 0.203

SDR 17 True

Size SDR Min Wall (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1-1/2" 17 True 0.088 1.702 0.194 0.203
2" 17 True 0.117 2.260 0.337 0.354

SIDR 7

Size SDR Min Wall (in.) AVG ID (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
3/4" 7 0.118 0.824 0.106 0.154 0.162
1" 7 0.150 1.049 1.349 0.246 0.258
1-1/4" 7 0.197 1.380 1.774 0.423 0.444
1-1/2" 7 0.230 1.610 2.070 0.576 0.605
2" 7 0.295 2.067 2.657 0.948 0.995
3" 7 0.438 3.068 3.944 2.105 2.210

SIDR 9

Size SDR Min Wall (in.) AVG ID (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
3/4" 9 0.092 0.824 1.008 0.120 0.126
1" 9 0.117 1.049 1.283 0.190 0.199
1-1/4" 9 0.153 1.380 1.686 0.321 0.337
1-1/2" 9 0.179 1.610 1.968 0.435 0.457
2" 9 0.230 2.067 2.527 0.721 0.757
4" 9 0.447 4.026 4.920 2.742 2.879

SIDR 11.5

Size SDR Min Wall (in.) AVG ID (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1/2" 11.5 0.060 0.622 0.742 0.061 0.064
3/4" 11.5 0.072 0.824 0.968 0.094 0.099
1" 11.5 0.091 1.049 1.231 0.148 0.155
1-1/4" 11.5 0.120 1.380 1.620 0.251 0.263
1-1/2" 11.5 0.140 1.610 1.890 0.338 0.355
2" 11.5 0.180 2.067 2.427 0.553 0.580
4" 11.5 0.350 4.026 4.726 2.081 2.195

SIDR 15

Size SDR Min Wall (in.) AVG ID (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1/2" 15 0.060 0.622 0.742 0.061 0.064
3/4" 15 0.060 0.824 0.944 0.079 0.083
1" 15 0.070 1.049 1.189 0.115 0.121
1-1/4" 15 0.092 1.380 1.564 0.193 0.203
1-1/2" 15 0.107 1.610 1.824 0.258 0.271

SIDR 11.5t

Size SDR Min Wall (in.) AVG ID (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1" 11.5t 0.087 1.020 1.194 0.138 0.145
1-1/4" 11.5t 0.109 1.270 1.448 0.211 0.221
1-1/2" 11.5t 0.130 1.520 1.780 0.297 0.312
2" 11.5t 0.174 1.995 2.343 0.517 0.542
4" 11.5t 0.325 4.050 4.700 1.97 2.68

SIDR 9t

Size SDR Min Wall (in.) AVG ID (in.) AVG OD (in.) OD Smooth/ID Smooth (lb/ft.) OD Smooth/ID Ribbed (lb/ft.)
1" 9t 0.111 1.020 1.242 0.176 0.184
1-1/4" 9t 0.128 1.270 1.526 0.248 0.260

HDPE Micro Duct

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Dimensions

The micro duct properties meet or exceed the values listed below for HDPE:

OD/ID Outside Diameter Walls Inside Diameter LBS/FT Bend Radius
Min Max Min Max Supported Unsupported
8.5/6mm 0.331 0.339 0.045 0.053 0.232 0.019 3 in. 6 in.
10/8mm 0.390 0.398 0.035 0.043 0.315 0.019 4 in. 8 in.
12/10mm 0.468 0.476 0.035 0.043 0.394 0.023 5 in. 10 in.
12.7/10mm 0.496 0.504 0.049 0.057 0.394 0.032 5 in. 10 in.
16/12mm 0.626 0.634 0.074 0.082 0.462 0.059 6 in. 12 in.
16/13mm 0.626 0.634 0.055 0.063 0.512 0.046 6 in. 12 in.
18/14mm 0.705 0.713 0.075 0.083 0.551 0.068 7 in. 14 in.

General Specifications

Type: Smooth O.D. / Ribbed I.D.

Material Type: Base HDPE resin conforms to ASTM-D3350-14, Cat. 5, Class B or C.

Options: Pre-Lubricated: Silicone lubricant GE #SF96-350 or equivalent
* I.D. is measured at peak of rib
* wall thickness is measured in valley between ribs

Riser Micro Duct

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Dimensions

The micro duct properties meet or exceed the values listed below for Plenum:

OD/ID Outside Diameter Walls Inside Diameter LBS/FT Bend Radius
Min Max Min Max Supported Unsupported
10/8mm 0.390 0.398 0.035 0.043 0.315 0.02 4 in. 8 in.
12/10mm 0.468 0.476 0.035 0.043 0.394 0.024 5 in. 10 in.
12.7/10mm 0.496 0.504 0.049 0.057 0.394 0.034 5 in. 10 in.
16/12mm 0.626 0.634 0.074 0.082 0.462 0.062 6 in. 12 in.
16/13mm 0.626 0.634 0.055 0.063 0.512 0.049 6 in. 12 in.
18/14mm 0.705 0.713 0.075 0.083 0.551 0.072 7 in. 14 in.

General Specifications

Color: Natural (other colors and striping options available upon request)

Nominal Density: 1.78 g/cm3

Material Type: PVDF (polyvinylidene fluoride)

Options: Pre-Lubricated: Silicone lubricant GE #SF96-350 or equivalent
* I.D. is measured at peak of rib
* wall thickness is measured in valley between ribs

Plenum Micro Duct

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Dimensions

The micro duct properties meet or exceed the values listed below for Plenum:

OD/ID Outside Diameter Walls Inside Diameter LBS/FT Bend Radius
Min Max Min Max Supported Unsupported
10/8mm 0.390 0.398 0.035 0.043 0.315 0.035 4 in. 8 in.
12/10mm 0.468 0.476 0.035 0.043 0.394 0.043 5 in. 10 in.
12.7/10mm 0.496 0.504 0.049 0.057 0.394 0.060 5 in. 10 in.
16/12mm 0.626 0.634 0.074 0.082 0.462 0.110 6 in. 12 in.
16/13mm 0.626 0.634 0.055 0.063 0.512 0.086 6 in. 12 in.
18/14mm 0.705 0.713 0.075 0.083 0.551 0.127 7 in. 14 in.

General Specifications

Color: White (Natural) color is standard (other color options available upon request)

Nominal Density: 1.78 g/cm3

Material Type: PVDF (polyvinylidene fluoride)

Options: Pre-Lubricated: Silicone lubricant GE #SF96-350 or equivalent
* I.D. is measured at peak of rib
* wall thickness is measured in valley between ribs


Contact Us Directly

Phone: +1 (814) 838-2560

Email: sales@northcoastconduit.com

Hours: M-F 8:00AM - 5:00PM Eastern Time

Located in Erie, PA