DS drainage pipe systems are manufactured of grey cast iron with flake graphite (type at least EN-GJL-150).

 

DS SML and couplingCompletely meet the requirements of EN 877,ISO6594, DIN19522 for normal building drainage,inside coating resistance surpassing the standard requirements by far.

 

for underground installation,DS TML and KMLSystems are fulfilled by the standard, which requires an pipe outside coating with zinc layer min. 130 g/mand an additional cover coat.

 

DS BML systemOutside coating correspond to ZTV-ING part 4 steel construction, annex A, table A 4.3.2, construction part no. 3.3.3. It has typical properties of resisting acidic waste gas, road salt mist, etc, suit-able for special requirements in the field of bridge construction,roads, tunnels.