... Dn100) 2.European EN14420-8/NF E29 Guillemin Quick Coupling,guillemin coupling,reducing with locking ring Specifications: 1.Technical Standard :European ... NF E29-5752.Working Pressure :16 bar/230psi3.Material(coupling body):Aluminum(heat thread T6)4.Thread:EN ISO ... industrial field used:military,oil,colliery,fire,control,chenmical,industry agriculturalirrigation and other fields8.Size:11/2"~4"(Dn40- ...