Abstract: A flexible expansion joint is capable coping with a great extension for its limited length. The flexible expansion joint includes: a first sleeve to be put on an end part of a first pipe; an outer sleeve to be put on an end part of a second pipe so as to overlap the first sleeve and capable of moving axially relative to the first sleeve; a first sealing member; a second sealing member; a third sealing member; a first length limiter including a first stopper for limiting the axial movement of the first pipe and the first sleeve relative to each other; and a second length limiter including a second stopper for limiting the axial movement of the second pipe the outer sleeve relative to each other.

Abstract: A flexible expansion joint is capable coping with a great extension for its limited length. The flexible expansion joint includes: a first sleeve to be put on an end part of a first pipe; an outer sleeve to be put on an end part of a second pipe so as to overlap the first sleeve and capable of moving axially relative to the first sleeve; a first sealing member; a second sealing member; a third sealing member; a first length limiter including a first stopper for limiting the axial movement of the first pipe and the first sleeve relative to each other; and a second length limiter including a second stopper for limiting the axial movement of the second pipe the outer sleeve relative to each other.

Abstract: A housing type joint including: a housing formed by arranging at least three arcuate segments in a circumferential direction with gaps; an elastic ring arranged in the housing for hermetically sealing end portions of a pair of pipes; a fastening band arranged so as to surround an outside surface of the housing and having loop portion at both ends thereof; and a fastening unit that makes the loop portions at both ends of the fastening band closer to each other, in order to make the arcuate segments closer to each other or in contact with each other; wherein the elastic ring has engagement projections at positions located in a circumferential direction thereof with gaps, correspondingly to the respective arcuate segments, each engagement projection extending outward in a radial direction of the elastic ring; each arcuate segment has a positioning hole into which each engagement projection is inserted; and a fastening-band guiding part is provided on an outside surface of each arcuate segment for guiding the fas

Abstract: Each of the semi-circular coupling segments has pipe fastening parts. One pipe fastening part has a protrusion to be in contact with the side surface of the circumferential groove of one pipe nearer to the end of the pipe in one of the end sections thereof with respect to a circumferential direction, and a protrusion to be in contact with the side surface of the circumferential groove of the pipe farther from the end of the pipe in the other end section thereof with respect to the circumferential direction. The other pipe fastening part has a protrusion to be in contact with the side surface of the circumferential groove of the pipe farther from the end of the pipe in one of the end sections thereof with respect to the circumferential direction, and a protrusion to be in contact with the side surface of the circumferential groove of the pipe nearer to the end of the pipe in the other end section thereof with respect to the circumferential direction.

Abstract: Each of the circular coupling segments 20 has pipe fastening parts 24, 25. One pipe fastening part 24 has a protrusion 26 to be in contact with the side surface 3a of the circumferential groove 3 of one pipe 4 nearer to the end of the pipe 4 in one of the end sections thereof with respect to a circumferential direction, and a protrusion 27 to be in contact with the side surface 3b of the circumferential groove 3 of the pipe 4 farther from the end of the pipe 4 in the other end section thereof with respect to the circumferential direction. The other pipe fastening part 25 has a protrusion 28 to be in contact with the side surface 3b of the circumferential groove 3 of the pipe 5 farther from the end of the pipe 5 in one of the end sections thereof with respect to the circumferential direction, and a protrusion 29 to be in contact with the side surface 3a of the circumferential groove 3 of the pipe 5 nearer to the end of the pipe 5 in the other end section thereof with respect to the circumferential direction.