Coupling Minimess 1620 Cap thread M16x2Nominal width DN2Max. pressure 630 bar (63 MPa)Machining steel 1.0718 or high-grade steel 1.45 Coupling Minimess 1215 Locking thread 12Nominal width DN2Max. pressure 630 bar (63 MPa)Machining steel 1.0718 or high-grade steel 1.4571Sealing material NBR (Perbunan) or FKM (Viton)5