STAINLESS STEEL COUPLING, CAST IRON PIPE COUPLING, NO HUB COUPLING DINSEN pipes and fittings are connected by the cast iron pipe coupling with elastomeric gasket. There are various options of couplings for your choice to satisfy the different applications of pipe system. Stainless steel couplings for European standard EN877, Stainless steel couplings or clamping components is in accordance with EN10088-1 to ensure resistance to corrosion. The EPDM elastomeric gaskets is conform to ISO4633/EN681-1 TYPE EDN40 to DN300