ASTM D-2737 (SDR-PR) Based on Controlled Outside Diameter

This specification covers polyethylene pipe made in standard thermoplastic pipe dimension ratios and pressure rated for water. Pipe manufactured under this specification is based on a controlled outside diameter which is designed to match and mate with copper tube using copper tube size (CTS) compression couplings.

Pipe manufactured to this specification is described using a prefix-diameter ratio. The prefix for ASTM D-2737 is SDR.

The most common ratio under this specification is SDR-9. The definition of SDR (Standard Dimension Ratio) is the specific ratio of the average specified outside diameter to the minimum specified wall thickness.

SDR-9 service tubing is available in black, Super Service™ Blue and Reclaimed Water Purple.

Specifications

PIPE CALCULATED ID OUTSIDE DIAMETER MINIMUM WALL
3/4"~0.681"0.875" +0.004"0.097" +0.010"
1"~0.875"1.125" +0.005"0.125" +0.012"
1-1/4"~1.069"1.375" +0.005"0.153" +0.015"
1-1/2"~1.263"1.625" +0.006"0.181" +0.018"
2"~1.653"2.125" +0.006"0.236" +0.024"