Solid wall 50mm blue MDPE (also known as alkathene) pipe coil suitable for below ground potable water mains supply distribution. 12.5 bar maximum operating pressure. SDR 11-rated. 4.6mm wall thickness. WRAS approved & complies with BS EN 12201. Flexible, lightweight and easy to install Corrosion free material for longer life Colour-coded PE80 light blue exterior, PE80 black inner layer Fully compatible with a range of push-fit fittings from JDP Suitable for open-cut and no-dig installation methods and for use in pipeline rehabilitation projects Use 50mm pipe inserts and compression couplings & fittings to create a mains water supply network underground. 50mm blue water pipe is typically used where 100m to 800m of continuous below ground water supply pipe is required. However, check with your local water authority as distances vary. Manufactured from MDPE. Use black HDPE for above ground water distribution instead of blue MDPE.