SDR11 black poly pipe offers a magnificent array of benefits, compared to other pipe materials. Other factors favouring SDR11 poly pipe are ease of installation, long life in excess of 50 years, and the ability to be used in trenchless construction methods.
What does SDR11 poly mean? SDR11 stands for a Size Dimension Ratio of 11. So you divide the OD(mm) of the poly pipe by the SDR, to give you the pipe wall thickness. I.e. divide 180mm(OD) by 11(SDR11), giving a wall thickness of 16.4mm. With PE100 pipe, SDR11 gives you a pressure rating of PN16, or 16 bar.