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/m²and 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.
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名称:EN877 SML铸铁接头/ DIN19522铸铁管接头 尺寸:完整的EN877管道系列和尺寸从DN40到DN300 标准:铸铁管和管件按照EN877 / DIN19522 / ISO6594和ASTM A888 / CISPI 301,CSA制造B70,GB / T 12772. ...