NuMex Plastics, Inc.

Controlled outside diameter pipe designed to be fused together by heat and pressure.

ASTM D-3035 (DR-PR) Based on Controlled Outside Diameter

This specification covers polyethylene pipe made in standard thermoplastic pipe dimension ratios and pressure rated for water at 73.4°F. Pipe manufactured under this specification is based on a controlled outside diameter. For a given nominal size, the outside diameter will be constant regardless of the pressure rating.

Pipe manufactured to this specification is described using a prefix-diameter ratio. The prefix for ASTM D-3035 is DR. It is still common to refer to ASTM D-3035 pipe as SDR as that was how the ASTM used to describe it. They removed the "S" in hopes of clearing up the confusion between it and ASTM D-2737 CTS tubing. It did not. Some also call pipe made to this standard ductile iron pipe size or D.I.P.S.

The most common ratios under this specification are DR-21, DR-17, DR-15.5, DR-13.5, DR-11, DR-9, DR-7, DR-6, and DR-5. The lower the DR number, the thicker the wall and the higher the pressure rating. The definition of DR (Dimension Ratio) is the specific ratio of the average specified outside diameter to the minimum specified wall thickness.

Dr compare

IPS Dimension Ratio DR-17 125PSI NSF Certified

IPS Dimension Ratio DR-17 125PSI NSF Certified
Nominal Size Nominal O.D. Min. Wall Thickness Wt / 100' Standard Coil Lengths
3/4" 1.050" 0.062" 8.0#
100'
300'
500'
1000'
1" 1.315" 0.077" 12.5#
100'
300'
500'
1000'
1-1/4" 1.660" 0.098" 19.9#
100'
300'
500'
1000'
1500'
1-1/2" 1.900" 0.112" 26.1#
100'
300'
500'
1000'
1500'
2" 2.375" 0.140" 40.7#
100'
300'
500'
1000'
2-1/2" 2.875" 0.169" 59.7#
100'
300'
500'
1000'
3" 3.500" 0.206" 92.9#
100'
300'
500'
1000'

IPS Dimension Ratio DR-15.5 138PSI NSF Certified

IPS Dimension Ratio DR-15.5 138PSI NSF Certified
Nominal Size Nominal O.D. Min. Wall Thickness Wt / 100' Standard Coil Lengths
3/4" 1.050" 0.068" 8.7#
100'
300'
500'
1000'
1" 1.315" 0.084" 13.6#
100'
300'
500'
1000'
1-1/4" 1.660" 0.107" 21.7#
100'
300'
500'
1000'
1500'
2000'
1-1/2" 1.900" 0.123" 28.4#
100'
300'
500'
1000'
1500'
2000'
2" 2.375" 0.153" 44.4#
100'
300'
500'
1000'
1500'
2-1/2" 2.875" 0.185" 65.0#
100'
300'
500'
1000'
3" 3.500" 0.226" 96.4#
100'
300'
500'
1000'

IPS Dimension Ratio DR-13.5 160PSI NSF Certified

IPS Dimension Ratio DR-13.5 160PSI NSF Certified
Nominal Size Nominal O.D. Min. Wall Thickness Wt / 100' Standard Coil Lengths
3/4" 1.050" 0.078" 9.9#
100'
300'
500'
1000'
1" 1.315" 0.097" 15.5#
100'
300'
500'
1000'
1-1/4" 1.660" 0.123" 24.6#
100'
300'
500'
1000'
1500'
2000'
2500'
1-1/2" 1.900" 0.141" 32.3#
100'
300'
500'
1000'
1500'
2000'
2" 2.375" 0.176" 50.4#
100'
300'
500'
1000'
1500'
2000'
2-1/2" 2.875" 0.213" 73.9#
100'
300'
500'
1000'
3" 3.500" 0.259" 109.5#
100'
300'
500'
1000'

IPS Dimension Ratio DR-11 200PSI NSF Certified

IPS Dimension Ratio DR-11 200PSI NSF Certified
Nominal Size Nominal O.D. Min. Wall Thickness Wt / 100' Standard Coil Lengths
3/4" 1.050" 0.095" 12.3#
100'
300'
500'
1000'
1" 1.315" 0.120" 19.4#
100'
300'
500'
1000'
1-1/4" 1.660" 0.151" 30.9#
100'
300'
500'
1000'
1500'
2000'
2500'
3000'
1-1/2" 1.900" 0.171" 40.5#
100'
300'
500'
1000'
1500'
2000'
2500'
2" 2.375" 0.216" 63.0#
100'
300'
500'
1000'
1500'
2000'
2-1/2" 2.875" 0.261" 93.0#
100'
300'
500'
1000'
3" 3.500" 0.318" 136.0#
100'
300'
500'
1000'

IPS Dimension Ratio DR-9 250PSI NSF Certified

IPS Dimension Ratio DR-9 250PSI NSF Certified
Nominal Size Nominal O.D. Min. Wall Thickness Wt / 100' Standard Coil Lengths
3/4" 1.050" 0.117" 14.6#
100'
300'
500'
1000'
1" 1.315" 0.146" 22.9#
100'
300'
500'
1000'
1-1/4" 1.660" 0.184" 36.4#
100'
300'
500'
1000'
1500'
2000'
2500'
3000'
1-1/2" 1.900" 0.211" 48.1#
100'
300'
500'
1000'
1500'
2000'
2" 2.375" 0.264" 74.4#
100'
300'
300'
1000'
1500'
2-1/2" 2.875" 0.319" 110.1#
100'
300'
500'
1000'
3" 3.500" 0.389" 165.0#
100'
300'
500'
1000'

IPS Dimension Ratio DR-7 333PSI NSF Certified

IPS Dimension Ratio DR-7 333PSI NSF Certified
Nominal Size Nominal O.D. Min. Wall Thickness Wt / 100' Standard Coil Lengths
1" 1.315" 0.188" 28.6#
100'
300'
500'
1000'
1-1/4" 1.660" 0.237" 45.4#
100'
300'
500'
1000'
1500'
2000'
2500'
1-1/2" 1.900" 0.271" 59.9#
100'
300'
500'
1000'
1500'
2000'
2" 2.375" 0.339" 93.3#
100'
300'
500'
1000'
2-1/2" 2.875" 0.411" 136.8#
100'
300'
500'
3" 3.500" 0.500" 205.0#
100'
300'
500

IPS Dimension Ratio DR-6 400PSI NSF Certified

IPS Dimension Ratio DR-6 400PSI NSF Certified
Nominal Size Nominal O.D. Min. Wall Thickness Wt / 100' Standard Coil Lengths
1" 1.315" 0.219" 28.6#
100'
300'
500'
1000'
1-1/4" 1.660" 0.277" 45.4#
100'
300'
500'
1000'
1-1/2" 1.900" 0.317" 59.9#
100'
300'
500'
1000'
2" 2.375" 0.396" 93.3#
100'
300'
500'
2-1/2" 2.875" 0.479" 136.8#
100'
300'
500'

IPS Dimension Ratio DR-5 500PSI NSF Certified

IPS Dimension Ratio DR-5 500PSI NSF Certified
Nominal Size Nominal O.D. Min. Wall Thickness Wt / 100' Standard Coil Lengths
1" 1.315" 0.263" 36.0#
100'
300'
500'
1000'
1-1/4" 1.660" 0.332" 57.0#
100'
300'
500'
1000'
1-1/2" 1.900" 0.380" 75.0#
100'
300'
500'
1000'
2" 2.375" 0.475" 118.0#
100'
300'
500'
2-1/2" 2.875" 0.575" 172.0#
100'
300'
500'

3505 S Main St, Roswell, NM 88201
PO Box 1697, Roswell, NM 88202-1697

(800) 440-9323    (575) 622-2070    (575) 624-0832