The European standard EN 877 is valid for prefabricated parts of cast iron pipes for construction - normally as non-pressure pipelines - of building drainage systems as well as connecting drains. The nominal diameter range covers DN 40 up to and including DN 600. This standard contains requirements for material, dimensions and tolerances, mechanical features, composition, standard coatings for cast iron pipes, fittings and accessories. Further it contains functional requirements for all prefabricated parts including couplings. It is valid for pipes, fittings and accessories which are manufactured by casting process, no matter which type, or from cast parts, and for the corresponding couplings. Düker SML drainage pipe systems are in accordance with.
