Hydraulic fitting

pneumaticsocketiron

Combining the sealing features of the time-proven Fastite joint and a boltless restrained connection, AMERICAN Flex-Ring joint ductile iron pipe provides flexible, easily assembled, positive restraint against endwise separation due to thrust. Centrifugally cast for piping water, sewage and other liquids, Flex-Ring joint pipe may also be used in trenchless applications such as horizontal directional drilling and pipe bursting. With spigot ahead, the low-profile Flex-Ring bell assembles quickly and offers a smooth transition during pipe pull-back. AMERICAN offers a Flex-Ring pulling bell assembly specifically designed for this installation method. Flexible restraint for 4” through 12” sizes is provided by a beveled, welded-on ductile iron retainer ring plus a yellow painted ductile iron split flex-ring assembled behind the retainer ring. After the plain end of the pipe is assembled into the Flex-Ring bell, the split Flex-Ring is inserted and springs into the socket locking groove. The Flex-Ring is securely positioned behind the welded-on retainer ring and in the socket locking groove on the inside of the pipe bell. For 14” though 54” sizes, restraint is provided by a shop-applied weld bead and a rubber-backed ring containing yellow painted ductile iron segments. As the plain end of the pipe is fully assembled into the bell, the ductile iron segments automatically close on the pipe behind the weld bead. The enclosure of the segments between the weld bead, spigot and the sloped inner lip of the bell provides the flexible restraint.