... idea we’ve been refining one step at a time for 80 years. That idea is the grooved end mechanical ... that’s safer, more environmentally friendly and faster to install for designers, contractors and building owners. Today Victaulic piping systems ... pipe2Q235A,20,16Mn3Seal ring1NBR,EPDM4BoltnQ235A,35,1Cr18Ni9Ti5NutnQ235A,20,1Cr18Ni9Ti 3:Dimension of victaulic coupling 4:Installation program 5:Practical ...