... by the building industry as a reliable drainage system, widely used in sanitary Drain, Waste, and Vent, sewer drainage applications. ... choice for drainage inside the building.1) For no-hub pipe: Standard: EN877, ISO6594; ASTM A 888, CISPI301 Nominal Size ... single branches, double branches, corner branches, unequal branches, down pipe support, spigot caps, reducer, traps, access pieces with circle door ...