... -1000mm 3.Pull strength: >420MPa Details of ductile iron ISO2531 puddle pipe:1. Standards : ISO2531, ISO4422, EN545 , EN598 , BS4772 , AWWA C110 ... nuts available upon request . 5. flanged pipe fittings , double flange pipe, single flange pipe, push-on Tyton socket fittings , Ductile iron/PVC ... fittings Welcome to visit our website and our foundry ISO2531 puddle pipe