Abstract: A connecting device for piping is disclosed. The connecting device for piping includes a connecting device body having therein ball insertion holes, balls inserted into the ball insertion holes so as to come into close contact with the outer surface of a pipe, a locking cap including a locking cap body movably coupled to the connecting device body and a pressing rim portion pressing the balls, a locking cap spring pressing the locking cap toward the position at which the locking cap contacts the balls, a stopper cap movably coupled to the connecting device body so as to limit movement of the locking cap, a plunger including a plunger body, a plunger tube inserted into the pipe, and a packing disposed on the periphery of the plunger tube so as to come into contact with the pipe, and a plunger spring pressing the plunger toward the pipe.

Abstract: A connecting device for piping is disclosed. The connecting device for piping includes a connecting device body having therein ball insertion holes, balls inserted into the ball insertion holes so as to come into close contact with the outer surface of a pipe, a locking cap including a locking cap body movably coupled to the connecting device body and a pressing rim portion pressing the balls, a locking cap spring pressing the locking cap toward the position at which the locking cap contacts the balls, a stopper cap movably coupled to the connecting device body so as to limit movement of the locking cap, a plunger including a plunger body, a plunger tube inserted into the pipe, and a packing disposed on the periphery of the plunger tube so as to come into contact with the pipe, and a plunger spring pressing the plunger toward the pipe.

Abstract: Disclosed is a connecting device for piping for connecting a pipe to another pipe or to another part for piping. The connecting device includes an adapter and a pipe nipple configured to be threadedly engaged with the adapter. The pipe nipple is fixed to an end of a pipe, and an end of another pipe is inserted into the adapter. The adapter includes a hollow adapter body, a cap coupled to the adapter body, a grip ring configured to fix the pipe introduced into the adapter body, a body-sealing member configured to provide a seal between the adapter body and the pipe, a sleeve disposed between the grip ring and the body-sealing member, and a metal sealing member configured to provide a seal between the adapter body and the pipe nipple.

Abstract: Disclosed is a connecting device for piping for connecting a pipe to another pipe or to another part for piping. The connecting device includes an adapter and a pipe nipple configured to be threadedly engaged with the adapter. The pipe nipple is fixed to an end of a pipe, and an end of another pipe is inserted into the adapter. The adapter includes a hollow adapter body, a cap coupled to the adapter body, a grip ring configured to fix the pipe introduced into the adapter body, a body-sealing member configured to provide a seal between the adapter body and the pipe, a sleeve disposed between the grip ring and the body-sealing member, and a metal sealing member configured to provide a seal between the adapter body and the pipe nipple.