Thrust ring for pipe joints

A pipe joint thrust ring interposed between a joint member of a pipe joint and a connecting threaded member rotatably fitted to the joint member, the thrust ring comprising a C-shaped body having a substantially rectangular cross-section and being in the form of a circle having approximately one-third of the circle cut away and having spring elasticity, the inner width between opposed ends of the C-shaped body being smaller than the outside diameter of the joint member and increasable to a value equal to the outside diameter of the joint member, wherein adjacent and in contact with said thrust ring, said joint member has a flange of greater outside diameter than an outside diameter of said thrust ring.