Universal Coupling Ductile Iron GGG50,GJS500-7 Size: DN40-DN600 Pressure: PN10;PN16;230psi. Press Test: PN15,PN24,350psi Ductile Iron GGG50,GJS500-7,GGG40Size: DN40-DN600Pressure: PN10;PN16; 230psi. Pressure Test: PN15,PN24,350psi.EPDM, NBR Rubber Seals to EN681 & ASTM D2000.Painting: RAL5017 FBE coated, Min., Coating Thickness 200μm. Connected Pipe: DI Pipe, PVC/UPVC Pipe, Steel Pipe and Part AC ...