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.
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 |
DR-11 200 PSI |
DR-9 250 PSI |
DR-7 333 PSI |
|---|---|---|---|---|---|
| 3/4" | 1.050" | ~0.894" | ~0.860" | ~0.816" | ~0.750" |
| 1" | 1.315" | ~1.121" | ~1.075" | ~1.023" | ~0.939" |
| 1-1/4" | 1.660" | ~1.414" | ~1.358" | ~1.292" | ~1.186" |
| 1-1/2" | 1.900" | ~1.618" | ~1.554" | ~1.478" | ~1.358" |
| 2" | 2.375" | ~2.023" | ~1.943" | ~1.847" | ~1.697" |
| 3" | 3.500" | ~2.982" | ~2.864" | ~2.722" | — |
Calc. I.D. values shown. 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.