ASTM D-3035 · Outside Controlled · IPS Sizing

HDPE Pressure Pipe

Interstate Plastic manufactures HDPE pressure pipe to ASTM D-3035 in four dimension ratios from DR-13.5 (160 PSI) to DR-7 (333 PSI). Outside diameter is the controlled dimension — IPS sizing makes this pipe compatible with standard iron pipe fittings and heat fusion equipment. As pressure rating increases, wall thickness increases and bore diameter decreases while OD remains constant.

Nominal Size

Cross-Section Comparison

Select two dimension ratios to compare. Notice the outside diameter stays the same while the bore shrinks as wall thickness increases.

Color:
Color:
wall wall Same O.D. O.D. O.D. DR-13.5 · 160 PSI DR-7 · 333 PSI

Specifications

All available dimension ratios for the selected size. O.D. is constant. Calc. I.D. decreases as pressure rating increases.

Ratio Pressure O.D. Calc. I.D. Min. Wall Wt / 100' Cut Sheet

A minimum order may be required for colors other than black. Contact us for details.

All Sizes & Ratings

Complete specifications. The O.D. column is constant for each nominal size regardless of pressure rating. Wall thickness increases — and bore diameter decreases — as pressure rating increases.

Size O.D. DR-13.5
160 PSI
I.D. / Wall 		DR-11
200 PSI
I.D. / Wall 		DR-9
250 PSI
I.D. / Wall 		DR-7
333 PSI
I.D. / Wall
3/4" 1.050" ~0.894" 0.078" ~0.860" 0.095" ~0.816" 0.117" ~0.750" 0.150"
1" 1.315" ~1.121" 0.097" ~1.075" 0.120" ~1.023" 0.146" ~0.939" 0.188"
1-1/4" 1.660" ~1.414" 0.123" ~1.358" 0.151" ~1.292" 0.184" ~1.186" 0.237"
1-1/2" 1.900" ~1.618" 0.141" ~1.554" 0.173" ~1.478" 0.211" ~1.358" 0.271"
2" 2.375" ~2.023" 0.176" ~1.943" 0.216" ~1.847" 0.264" ~1.697" 0.339"
3" 3.500" ~2.982" 0.259" ~2.864" 0.318" ~2.722" 0.389" —

Calc. I.D. and Min. Wall shown per pressure rating. O.D. is constant per nominal size across all pressure ratings.

Available Colors

Black

General purpose. NSF-14 and NSF-61. Ships from stock.

Blue

Potable water ID. NSF-14 and NSF-61.

Purple

Reclaimed water. NSF-14 only.

Green

Sewer and irrigation. No NSF certification.

Grey

Wire-in-pipe applications. No NSF certification.

A minimum order may be required for colors other than black. Contact us for details.

Standards & Certifications

NSF/ANSI Standard #14, NSF/ANSI Standard #61

ASTM D-3035 — Polyethylene plastic pipe (DR-PR) based on controlled outside diameter

ASTM D-3350 — Polyethylene plastics pipe and fittings material

ASTM D-1248 — Polyethylene plastics molding and extrusion materials

Pressure pipe and tubing made from PE4710 is classified as CC3 per ASTM D-3350

Interstate Plastic, Inc. HDPE pressure pipe and tubing are in compliance with the Trade Agreement Act (19 USC 2501) and are proudly made in the USA in Post Falls, ID.

Flow Loss

PSI per 100 feet · Williams-Hazen C = 150 · Shaded = velocity > 5 ft/sec · Click any value to open the nomograph.

DR-13.5 · 160 PSI

GPM 3/4" 1" 1-1/4" 1-1/2" 2" 3" GPM
ID 0.894" ID 1.121" ID 1.414" ID 1.618" ID 2.023" ID 2.982"
1 0.07 1
2 0.27 0.09 2
3 0.56 0.19 0.06 3
4 0.96 0.32 0.1 0.05 4
5 1.45 0.48 0.16 0.08 5
6 2.03 0.68 0.22 0.11 6
7 2.7 0.9 0.29 0.15 0.05 7
8 3.46 1.15 0.37 0.19 0.07 8
9 4.3 1.43 0.46 0.24 0.08 9
10 5.23 1.74 0.56 0.29 0.1 10
11 6.24 2.07 0.67 0.35 0.12 11
12 7.33 2.44 0.79 0.41 0.14 12
13 8.5 2.83 0.91 0.47 0.16 13
14 9.75 3.24 1.05 0.54 0.18 14
15 11.08 3.68 1.19 0.62 0.21 15
16 12.48 4.15 1.34 0.7 0.23 16
17 13.97 4.64 1.5 0.78 0.26 17
18 5.16 1.67 0.87 0.29 18
19 5.71 1.84 0.96 0.32 0.05 19
20 6.28 2.03 1.05 0.35 0.05 20
22 7.49 2.42 1.26 0.42 0.06 22
24 8.8 2.84 1.48 0.5 0.08 24
25 9.49 3.07 1.59 0.54 0.08 25
26 10.2 3.3 1.71 0.58 0.09 26
28 11.7 3.78 1.96 0.66 0.1 28
30 13.3 4.3 2.23 0.75 0.11 30
35 5.72 2.97 1.0 0.15 35
40 7.32 3.8 1.28 0.19 40
45 9.1 4.73 1.59 0.24 45
50 11.07 5.74 1.94 0.29 50
60 8.05 2.71 0.41 60
70 10.71 3.61 0.55 70
80 13.71 4.62 0.7 80
90 5.75 0.87 90
100 6.99 1.06 100
120 9.8 1.48 120
140 13.04 1.97 140
160 2.53 160
180 3.14 180
200 3.82 200
220 4.56 220
240 5.35 240
260 6.21 260
280 7.12 280
300 8.1 300

DR-11 · 200 PSI

GPM 3/4" 1" 1-1/4" 1-1/2" 2" 3" GPM
ID 0.860" ID 1.075" ID 1.358" ID 1.554" ID 1.943" ID 2.864"
1 0.09 1
2 0.32 0.11 2
3 0.68 0.23 0.07 3
4 1.16 0.39 0.13 0.07 4
5 1.75 0.59 0.19 0.1 5
6 2.45 0.83 0.27 0.14 0.05 6
7 3.26 1.1 0.35 0.18 0.06 7
8 4.18 1.41 0.45 0.23 0.08 8
9 5.19 1.75 0.56 0.29 0.1 9
10 6.31 2.13 0.68 0.35 0.12 10
11 7.53 2.54 0.82 0.42 0.14 11
12 8.85 2.99 0.96 0.5 0.17 12
13 10.26 3.47 1.11 0.58 0.19 13
14 11.77 3.98 1.27 0.66 0.22 14
15 13.38 4.52 1.45 0.75 0.25 15
16 5.09 1.63 0.85 0.29 16
17 5.7 1.83 0.95 0.32 0.05 17
18 6.33 2.03 1.05 0.36 0.05 18
19 7.0 2.24 1.16 0.39 0.06 19
20 7.7 2.47 1.28 0.43 0.07 20
22 9.18 2.94 1.53 0.52 0.08 22
24 10.79 3.46 1.8 0.61 0.09 24
25 11.63 3.73 1.94 0.65 0.1 25
26 12.51 4.01 2.08 0.7 0.11 26
28 14.35 4.6 2.39 0.81 0.12 28
30 5.23 2.71 0.92 0.14 30
35 6.96 3.61 1.22 0.18 35
40 8.91 4.62 1.56 0.24 40
45 11.08 5.75 1.94 0.29 45
50 13.47 6.99 2.36 0.36 50
60 9.8 3.3 0.5 60
70 13.03 4.4 0.67 70
80 5.63 0.85 80
90 7.0 1.06 90
100 8.51 1.29 100
120 11.93 1.81 120
140 2.4 140
160 3.08 160
180 3.83 180
200 4.65 200
220 5.55 220
240 6.52 240
260 7.56 260
280 8.67 280
300 9.85 300

DR-9 · 250 PSI

GPM 3/4" 1" 1-1/4" 1-1/2" 2" 3" GPM
ID 0.816" ID 1.023" ID 1.292" ID 1.478" ID 1.847" ID 2.722"
1 0.11 1
2 0.41 0.14 2
3 0.88 0.29 0.09 0.05 3
4 1.49 0.5 0.16 0.08 4
5 2.26 0.75 0.24 0.13 5
6 3.17 1.05 0.34 0.18 0.06 6
7 4.21 1.4 0.45 0.23 0.08 7
8 5.39 1.79 0.58 0.3 0.1 8
9 6.71 2.23 0.72 0.37 0.13 9
10 8.15 2.71 0.87 0.45 0.15 10
11 9.73 3.24 1.04 0.54 0.18 11
12 11.43 3.8 1.22 0.63 0.21 12
13 13.25 4.41 1.42 0.74 0.25 13
14 5.06 1.62 0.84 0.29 14
15 5.75 1.85 0.96 0.32 0.05 15
16 6.48 2.08 1.08 0.37 0.06 16
17 7.25 2.33 1.21 0.41 0.06 17
18 8.06 2.59 1.34 0.45 0.07 18
19 8.91 2.86 1.49 0.5 0.08 19
20 9.8 3.15 1.63 0.55 0.08 20
22 11.69 3.75 1.95 0.66 0.1 22
24 13.73 4.41 2.29 0.77 0.12 24
25 14.81 4.75 2.47 0.84 0.13 25
26 5.11 2.66 0.9 0.14 26
28 5.87 3.05 1.03 0.16 28
30 6.66 3.46 1.17 0.18 30
35 8.87 4.61 1.56 0.24 35
40 11.35 5.9 2.0 0.3 40
45 14.12 7.34 2.48 0.38 45
50 8.92 3.02 0.46 50
60 12.5 4.23 0.64 60
70 5.62 0.85 70
80 7.2 1.09 80
90 8.96 1.36 90
100 10.89 1.65 100
120 2.31 120
140 3.08 140
160 3.94 160
180 4.9 180
200 5.96 200
220 7.1 220
240 8.35 240
260 9.68 260
280 11.11 280
300 12.62 300

DR-7 · 333 PSI

GPM 3/4" 1" 1-1/4" 1-1/2" 2" GPM
ID 0.750" ID 0.939" ID 1.186" ID 1.358" ID 1.697"
1 0.17 0.06 1
2 0.62 0.21 0.07 2
3 1.32 0.44 0.14 0.07 3
4 2.25 0.75 0.24 0.13 4
5 3.4 1.14 0.37 0.19 0.06 5
6 4.77 1.6 0.51 0.27 0.09 6
7 6.35 2.13 0.68 0.35 0.12 7
8 8.13 2.72 0.87 0.45 0.15 8
9 10.11 3.39 1.09 0.56 0.19 9
10 12.29 4.12 1.32 0.68 0.23 10
11 14.66 4.91 1.58 0.82 0.28 11
12 5.77 1.85 0.96 0.32 12
13 6.69 2.15 1.11 0.38 13
14 7.68 2.46 1.27 0.43 14
15 8.72 2.8 1.45 0.49 15
16 9.83 3.16 1.63 0.55 16
17 11.0 3.53 1.83 0.62 17
18 12.23 3.92 2.03 0.69 18
19 13.52 4.34 2.24 0.76 19
20 14.86 4.77 2.47 0.83 20
22 5.69 2.94 1.0 22
24 6.69 3.46 1.17 24
25 7.21 3.73 1.26 25
26 7.76 4.01 1.36 26
28 8.9 4.6 1.56 28
30 10.11 5.23 1.77 30
35 13.45 6.96 2.35 35
40 8.91 3.01 40
45 11.08 3.75 45
50 13.47 4.55 50
60 6.38 60
70 8.49 70
80 10.88 80
90 13.53 90