A combination sealing and restraint system capable of both sealing and restraining a female section of pipe to a mating male pipe having an interior surface and an exterior surface, to thereby form a sealed and retrained pipe joint, the sealing and restraint system comprising: a female section of PVC-Q plastic pipe having a triangular annular groove provided within a mouth region located adjacent an end opening thereof; an annular gasket body made of a resilient elastomeric material, the annular gasket body having an inner circumferential region and an outer circumferential region, the annular gasket body being installed within the annular groove provided in the mouth region of the female section of plastic pipe so that the outer circumferential region forms a seal with the mouth region and the inner circumferential region forms a sealing surface for a mating male pipe; a plurality of arcuate rigid gripping segments extending outwardly from the annular gasket body at a predetermined spacing around the circumference of the annular gasket body; wherein the gripping segments are comprised of an inner surface, an outer surface separated by a thickness, a front edge and a rear edge, and opposing end surfaces (45, 47), and wherein the inner surface of each segment has at least one row of gripping teeth capable of engaging selected points on the exterior surface of the mating male pipe and apply a gripping force to the exterior surface as the male pipe is inserted within the mouth opening of the female pipe during assembly of the pipe joint; and wherein the outer surface of each gripping segment has a sharp circumferential ridge formed thereon adjacent the rear edge thereof, the sharp ridge being positioned so as to contact the annular groove provided in the mouth region of the PVC-Q female pipe section during assembly of the pipe joint to prevent further sliding of the male pipe relative to the female pipe after initial gripping of the male pipe has occurred during the assembly of the pipe joint, characterized in that each of the gripping segments has a side chamfered region joined to a relatively straight region on each of the side surfaces thereof, the side chamfered region serving to reduce clash between adjacent gripping segments during installation of the male pipe section within the female pipe section to make up the pipe joint. a female section of PVC-Q plastic pipe having a triangular annular groove provided within a mouth region located adjacent an end opening thereof; an annular gasket body made of a resilient elastomeric material, the annular gasket body having an inner circumferential region and an outer circumferential region, the annular gasket body being installed within the annular groove provided in the mouth region of the female section of plastic pipe so that the outer circumferential region forms a seal with the mouth region and the inner circumferential region forms a sealing surface for a mating male pipe; a plurality of arcuate rigid gripping segments extending outwardly from the annular gasket body at a predetermined spacing around the circumference of the annular gasket body; wherein the gripping segments are comprised of an inner surface, an outer surface separated by a thickness, a front edge and a rear edge, and opposing end surfaces (45, 47), and wherein the inner surface of each segment has at least one row of gripping teeth capable of engaging selected points on the exterior surface of the mating male pipe and apply a gripping force to the exterior surface as the male pipe is inserted within the mouth opening of the female pipe during assembly of the pipe joint; and wherein the outer surface of each gripping segment has a sharp circumferential ridge formed thereon adjacent the rear edge thereof, the sharp ridge being positioned so as to contact the annular groove provided in the mouth region of the PVC-Q female pipe section during assembly of the pipe joint to prevent further sliding of the male pipe relative to the female pipe after initial gripping of the male pipe has occurred during the assembly of the pipe joint, characterized in that each of the gripping segments has a side chamfered region joined to a relatively straight region on each of the side surfaces thereof, the side chamfered region serving to reduce clash between adjacent gripping segments during installation of the male pipe section within the female pipe section to make up the pipe joint.