STANDARD

SMOOTHWALL
 Manufactured from flexible HDPE, makes gradual bends without special
equipment
 Continuous lengths reduce joining costs
 Excellent low-temperature properties, allows installation in cold climates
 Outstanding long-term cable protection from shifting ground, rock, and root
impingement
 Provides a permanent pathway, simpifies future cable repairs or replacement

INSTALLATION TYPES SIZE RANGE AVAILABLE WALL TYPES

Aerial 1/2" 2" 6" SDR 9 SCH 40
Subdivided Conduit 3/4" 2 1/2" 8" SDR 11 SCH 80
Plow 1" 3" 10" SDR 13.5 SIDR 9
Trench 1 1/4" 4" 12" SDR 15.5 SIDR 11
Directional Bore 1 1/2" 5" SDR 17
Tray
Direct Burial STANDARD COLORS
BGDSC F AWYZba or custom colors with optional stripes

STANDARD

MATERIAL Manufactured from flexible HDPE (High Density Polyethylene)

SPECIFICATIONS All Smoothwall conduit dimensions meet or exceed one or more of the following: ASTM
F-2160, ASTM D-3350, ASTM D-3485, NEMA TC-7, UL 651A, UL 1990, Bellcore GR-356, CSA C22.2 No. 327-18

CONDUIT MARKINGS Permanent marking along conduit includes: material, relevant standards, production
info, and sequential feet or meter markings. Custom options available.
F E AT U R E S

OPTIONS

CO-EXTRUDED LINING SILICORE® ULF (Ultra-Low Friction) is co-extruded inside the HDPE wall creating a
slick, permanent, interior lining. With a coefficient of friction 60% lower than standard HDPE conduit without
the aid of wet lubricants, SILICORE® ULF exhibits no loss in performance over time or in extreme temperature
conditions.

PRE-INSTALLED TAPE Factory pre-installed Bull-Line™ Pull Tape with EVEN-LOAD™ ensures extra slack at any
access point throughout the reel. Available 500lb–6,000lb tensile strength or locatable.

PRE-INSTALLED CABLE Cable can be factory pre-installed in conduit

UV PROTECTANT Available for UV exposure applications (Aerial, Lashed, or External Tray)

+1 800 847 7661

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DL.SMOOTHWALL.3.2023
DL.SMOOTHWALL.12.2024
 SMOOTHWALL (SDR/SCH) TECHNICAL SPECIFICATIONS (additional sizes next pages)

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SDR 9 0.840 0.004 0.093 0.020 0.634 0.614 0.098 8 16 525

SDR 11 0.840 0.004 0.076 0.020 0.668 0.648 0.084 8 16 440

SDR 13.5 0.840 0.004 0.062 0.020 0.696 0.676 0.072 8 16 365
1/2"

SDR 15.5 0.840 0.004 0.062 0.018 0.698 0.680 0.071 8 16 351

SCH 40 0.840 0.004 0.109 0.020 0.602 0.582 0.111 8 16 601

SCH 80 0.840 0.004 0.147 0.020 0.526 0.506 0.139 8 16 768

SDR 9 1.050 0.005 0.117 0.020 0.796 0.776 0.152 10 20 821

SDR 11 1.050 0.005 0.095 0.020 0.840 0.820 0.128 10 20 687

SDR 13.5 1.050 0.005 0.078 0.020 0.874 0.854 0.110 10 20 570
3/4"

SDR 15.5 1.050 0.005 0.068 0.020 0.894 0.874 0.098 10 20 536

SDR 17 1.050 0.005 0.062 0.020 0.906 0.886 0.091 10 20 460

SCH 40 1.050 0.005 0.113 0.020 0.804 0.784 0.148 10 20 798

SCH 80 1.050 0.005 0.154 0.020 0.722 0.702 0.188 10 20 1,040

SDR 9 1.315 0.007 0.146 0.020 1.003 0.983 0.234 13 26 1,288

SDR 11 1.315 0.007 0.120 0.020 1.055 1.035 0.199 13 26 1,078

SDR 13.5 1.315 0.007 0.097 0.020 1.101 1.081 0.167 13 26 894
1"

SDR 15.5 1.315 0.007 0.084 0.020 1.127 1.107 0.149 13 26 792

SDR 17 1.315 0.007 0.077 0.020 1.141 1.121 0.138 13 26 722

SCH 40 1.315 0.007 0.133 0.020 1.029 1.009 0.217 13 26 1,340

SCH 80 1.315 0.007 0.179 0.021 0.936 0.915 0.276 13 26 1,533

SDR 9 1.660 0.008 0.184 0.022 1.270 1.248 0.370 17 34 2,052

SDR 11 1.660 0.008 0.151 0.020 1.338 1.318 0.312 17 34 1,717

SDR 13.5 1.660 0.008 0.123 0.020 1.394 1.374 0.263 17 34 1,425
1 1/4"

SDR 15.5 1.660 0.008 0.107 0.020 1.426 1.406 0.234 17 34 1,234

SDR 17 1.660 0.008 0.098 0.020 1.444 1.424 0.217 17 34 1,150

SCH 40 1.660 0.008 0.140 0.020 1.360 1.340 0.293 17 34 1,604

SCH 80 1.660 0.008 0.191 0.023 1.255 1.232 0.382 17 34 2,116

+1 800 847 7661

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DL.SMOOTHWALL.12.2024
 SMOOTHWALL (SDR/SCH) TECHNICAL SPECIFICATIONS (additional sizes previous and next pages)

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SDR 9 1.900 0.010 0.211 0.025 1.453 1.428 0.485 19 38 2,688

SDR 11 1.900 0.010 0.173 0.021 1.533 1.512 0.408 19 38 2,249

SDR 13.5 1.900 0.010 0.141 0.020 1.598 1.578 0.342 19 38 1,867
1 1/2"

SDR 15.5 1.900 0.010 0.123 0.020 1.634 1.614 0.304 19 38 1,607

SDR 17 1.900 0.010 0.112 0.020 1.656 1.636 0.281 19 38 1,507

SCH 40 1.900 0.010 0.145 0.020 1.590 1.570 0.350 19 38 1,919

SCH 80 1.900 0.010 0.200 0.024 1.476 1.452 0.463 19 38 2,564

SDR 9 2.375 0.012 0.264 0.032 1.815 1.783 0.759 24 48 4,200

SDR 11 2.375 0.012 0.216 0.026 1.917 1.891 0.636 24 48 3,515

SDR 13.5 2.375 0.012 0.176 0.021 2.002 1.981 0.528 24 48 2,917

SDR 15.5 2.375 0.012 0.153 0.020 2.049 2.029 0.467 24 48 2,466
2"

SDR 17 2.375 0.012 0.140 0.020 2.075 2.055 0.432 24 48 2,355

SCH 40 2.375 0.012 0.154 0.020 2.047 2.027 0.469 24 48 2,579

SCH 80 2.375 0.012 0.218 0.026 1.913 1.887 0.641 24 48 3,501

SDR 9 2.875 0.014 0.319 0.038 2.199 2.161 1.110 29 58 6,155

SDR 11 2.875 0.014 0.261 0.031 2.322 2.291 0.930 29 58 5,151

SDR 13.5 2.875 0.014 0.213 0.026 2.423 2.397 0.775 29 58 4,274
2 1/2"

SDR 15.5 2.875 0.014 0.185 0.022 2.483 2.461 0.680 29 58 3,592

SDR 17 2.875 0.014 0.169 0.020 2.517 2.497 0.625 29 58 3,450

SCH 40 2.875 0.014 0.203 0.024 2.445 2.421 0.740 29 58 4,090

SCH 80 2.875 0.014 0.276 0.033 2.290 2.257 0.978 29 58 5,409

SDR 9 3.500 0.018 0.389 0.047 2.675 2.628 1.648 39 78 9,122

SDR 11 3.500 0.018 0.318 0.038 2.826 2.788 1.380 39 78 7,633

SDR 13.5 3.500 0.018 0.259 0.031 2.951 2.920 1.146 39 78 6,335
3"

SDR 15.5 3.500 0.018 0.226 0.027 3.021 2.994 1.011 39 78 5,342

SDR 17 3.500 0.018 0.206 0.025 3.063 3.038 0.928 39 78 5,114

SCH 40 3.500 0.018 0.216 0.026 3.042 3.016 0.969 39 78 5,348

SCH 80 3.500 0.018 0.300 0.036 2.864 2.828 1.310 39 78 7,238

+1 800 847 7661

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DL.SMOOTHWALL.12.2024
 SMOOTHWALL (SDR/SCH) TECHNICAL SPECIFICATIONS (additional sizes previous and next pages)

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SDR 9 N
4.500 0.023 0.500 0.060 3.440 3.380 2.723 50 100 15,080

SDR 11 4.500 0.023 0.409 0.049 3.633 3.584 2.282 50 100 12,618

SDR 13.5 4.500 0.023 0.333 0.040 3.794 3.754 1.895 50 100 10,472
4"

SDR 15.5 4.500 0.023 0.290 0.035 3.885 3.850 1.669 50 100 8,814

SDR 17 4.500 0.023 0.265 0.032 3.938 3.906 1.534 50 100 8,453

SCH 40 4.500 0.023 0.237 0.028 3.998 3.970 1.380 50 100 7,618

SCH 80 4.500 0.023 0.337 0.040 3.786 3.746 1.914 50 100 10,578

SDR 9 5.563 0.028 0.618 0.074 4.253 4.179 4.161 61 122 23,045

SDR 11 5.563 0.028 0.506 0.061 4.490 4.429 3.490 61 122 19,284

SDR 13.5 5.563 0.028 0.412 0.049 4.690 4.641 2.896 61 122 16,004
5"

SDR 15.5 5.563 0.028 0.359 0.043 4.802 4.759 2.552 61 122 13,483

SDR 17 5.563 0.028 0.327 0.039 4.870 4.831 2.339 61 122 12,918

SCH 40 5.563 0.028 0.258 0.031 5.016 4.985 1.872 61 122 10,320

SCH 80 5.563 0.028 0.375 0.045 4.768 4.723 2.657 61 122 14,669

SDR 9 6.625 0.033 0.736 0.088 5.065 4.977 5.901 73 146 32,684

SDR 11 6.625 0.033 0.602 0.072 5.349 5.277 4.944 73 146 27,349

SDR 13.5 6.625 0.033 0.491 0.059 5.584 5.525 4.122 73 146 22,697
6"

SDR 15.5 6.625 0.033 0.427 0.051 5.720 5.669 3.615 73 146 19,123

SDR 17 6.625 0.033 0.390 0.047 5.798 5.751 3.324 73 146 18,321

SCH 40 6.625 0.033 0.280 0.034 6.031 5.997 2.432 73 146 13,395

SCH 80 6.625 0.033 0.432 0.052 5.709 5.657 3.656 73 146 20,172

SDR 9 8.625 0.043 0.958 0.115 6.593 6.479 10.001 155 233 55,397
8"

SDR 11 8.625 0.043 0.784 0.094 6.963 6.869 8.383 155 233 46,355

SDR 13.5 8.625 0.043 0.639 0.077 7.270 7.193 6.969 155 233 38,470

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DL.SMOOTHWALL.12.2024
 SMOOTHWALL (SDR/SCH) TECHNICAL SPECIFICATIONS (additional sizes previous and next pages)

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SDR 9 N
10.750 0.054 1.194 0.143 8.219 8.076 15.534 194 290 86,057
10"

SDR 11 10.750 0.054 0.977 0.117 8.679 8.562 13.019 194 290 72,010

SDR 13.5 10.750 0.054 0.796 0.096 9.062 8.966 10.821 194 290 59,762

SDR 9 12.750 0.064 1.417 0.170 9.746 9.576 21.866 230 344 121,056
12"

SDR 11 12.750 0.064 1.159 0.139 10.293 10.154 18.319 230 344 101,297

SDR 13.5 12.750 0.064 0.944 0.113 10.749 10.636 15.214 230 344 84,067

SMOOTHWALL SDR & SCHEDULE NOTES

1. Bend Radius
½" through 2 ½" Supported Bend Radius 10 times the OD Unsupported Bend Radius 20 times the OD
3" through 6" Supported Bend Radius 11 times the OD Unsupported Bend Radius 22 times the OD
8" through 16" Supported Bend Radius 18 times the OD Unsupported Bend Radius 27 times the OD

2. During cable placement, large sweeping bends are recommended over tighter bends.
Pre-formed sweeps are recommended for conduit sizes 8" through 16" diameters.

3. SWPS (Safe Working Pull Strength) is calculated using a 25% safety factor with the minimum resin tensile strength
of 3,000 psi, the average OD and average wall thickness.

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DL.SMOOTHWALL.12.2024
 SMOOTHWALL (SIDR) TECHNICAL SPECIFICATIONS

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SIDR 9 0.780 0.069 0.020 0.622 0.072 8 16 445

1/2"
SIDR 11.5 0.762 0.060 0.022 0.622 0.063 8 16 390

SIDR 9 1.026 0.092 0.020 0.824 0.122 10 20 760

3/4"
SIDR 11.5 0.986 0.072 0.020 0.824 0.096 10 20 597

SIDR 9 1.298 0.117 0.020 1.049 0.192 13 26 1,471

1"
SIDR 11.5 1.246 0.091 0.020 1.049 0.150 13 26 891

SIDR 9 1.701 0.153 0.020 1.380 0.324 17 34 1,652

1 1/4"
SIDR 11.5 1.635 0.120 0.020 1.380 0.253 17 34 1,549

1 1/2" SIDR 11.5 1.908 0.140 0.020 1.610 0.341 19 38 2,123

SIDR 9 2.553 0.230 0.028 2.067 0.729 24 48 4,535

2"
SIDR 11.5 2.447 0.180 0.022 2.067 0.558 24 48 3,468

2 1/2" SIDR 11.5 2.919 0.215 0.026 2.469 0.792 29 58 4,934

3" SIDR 11.5 3.627 0.267 0.032 3.068 1.225 39 78 7,627

4" SIDR 11.5 4.768 0.350 0.042 4.026 2.111 50 100 13,119

6" SIDR 11.5 7.175 0.527 0.063 6.065 4.782 73 146 29,750

SMOOTHWALL SIDR NOTES:

1. Bend Radius
½” through 2 ½" Supported Bend Radius 10 times the OD Unsupported Bend Radius 20 times the OD
3” through 6" Supported Bend Radius 11 times the OD Unsupported Bend Radius 22 times the OD
8” through 16" Supported Bend Radius 18 times the OD Unsupported Bend Radius 27 times the OD

2. During cable placement, large sweeping bends are recommended over tighter bends.
Pre-formed sweeps are recommended for conduit sizes 8” through 16” diameters.

3. SWPS (Safe Working Pull Strength) is calculated using a 25% safety factor with the minimum resin tensile strength
of 3,000 psi, the average OD and average wall thickness.

4. Internal or external ribs are in addition to the average wall and for determining OD and ID dimensions.
The average rib height to be added is 0.020”

5. Add 0.016 #/ft for ribbed products 1 1/2” and less. For 2” and larger, add 0.025 #/ft

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