Pipe joint

A pipe joint (25) for connecting water supply pipe together and which utilizes compression seals between the pipe and the joint, and is comprised of a holding housing (19) having a band body (19a) that surround a seal ring (10) and a holding ring (13). A locking bolt (21) is threadably tightened onto the holding housing (19). The seal ring (10) is embedded and sealed within outside surface of both ends of the separated pipes(1,1) after the locking bolt (21) is threadably tightened. The holding ring (13) is positioned to engage and become fully engaged within the groove (6) at each of outside of the separated pipes (1,1), and hold the separation pipes(1,1) against being easily separated after the locking bolt (21) is threadably tight-end onto the holding housing (19). The ring spring (15) having a turned up portion (16) eliminate swell out of the holding ring (13) from the holding housing (19), and circumference rotation by itself. A ring expander (18) creatable enlargement of circumference clearance between adjacent segment of the holding ring (13) allowed the diameter enlargement of the holding ring (13) against compress force of the ring spring (15). The setting member (23) maintainable diameter enlargement of the holding ring (13) after removal of the ring expanded (18) is at ease of prior to installing of the pipe joint (25) for connecting the separated pipes (1,1).