An annular sealing material seals a pipe joint between a socket and a spigot. The sealing material includes a bulb part which is composed of a first bulb, a second bulb located closer to the inner side of the socket than the first bulb, and a narrow part present between the first and second bulbs. The first bulb is pressed against the inner circumferential surface of the socket. The second bulb is pressed against the outer peripheral surface of the spigot. The second bulb is inclined towards the pipe center from the first bulb in a natural state before it is provided between the socket and the spigot. The inner diameter of the second bulb is smaller than the outer diameter of the spigot in the natural state. The second bulb is extensible in the pipe diameter direction due to elastic deformation of the narrow part.

A coupling device for coupling a tube includes a pressure element for exerting a clamping force on the tube having a series of correspondingly embodied neighboring pressure elements, wherein each pressure element of the series has a first pressure element segment and a second pressure element segment, and wherein the first pressure element segment is placed proximally and the second pressure element segment distally with respect to the tube. The first pressure element segment is provided with a protrusion extending transversely to the longitudinal direction of the tube, and the protrusion extends into a slot that is provided in a directly neighboring second pressure element segment that forms part of a neighboring pressure element.

A coupling device for coupling a tube includes a pressure element for exerting a clamping force on the tube having a series of correspondingly embodied neighboring pressure elements, wherein each pressure element of the series has a first pressure element segment and a second pressure element segment, and wherein the first pressure element segment is placed proximally and the second pressure element segment distally with respect to the tube. The first pressure element segment is provided with a protrusion extending transversely to the longitudinal direction of the tube, and the protrusion extends into a slot that is provided in a directly neighboring second pressure element segment that forms part of a neighboring pressure element.

A fluid connector comprising a body having a through-bore, a plurality of radially inwardly facing surfaces comprising a first cylindrical surface having a first diameter, a frusto-conical surface adjacent the first cylindrical surface, and a second cylindrical surface adjacent the frusto-conical surface, the second cylindrical surface having a second diameter, wherein the frusto-conical surface is arranged between the first and second cylindrical surfaces, and a plurality of outwardly facing surfaces comprising a first cylindrical surface having a first diameter, and a second cylindrical surface adjacent the first cylindrical surface, the second cylindrical surface having a second diameter, and a deformable tab integrally connected to the body and extending axially from the body.

A mechanical joint includes a piping element, the piping element including an element flange, the piping element defining a socket extending inwards from the element flange; a pipe length, the pipe length extending through the element flange into the socket, the pipe length defining an outer pipe surface; and a gland, the pipe length extending through the gland, the gland including a joint restraint assembly, the joint restraint assembly including a restraint base; and a gripper disposed within the restraint pocket, the gripper configured to rotate in the restraint pocket, the gripper further configured to engage the outer pipe surface to prevent removal of the pipe length from the socket.

A mechanical joint includes a piping element, the piping element including an element flange, the piping element defining a socket extending inwards from the element flange; a pipe length, the pipe length extending through the element flange into the socket, the pipe length defining an outer pipe surface; and a gland, the pipe length extending through the gland, the gland including a joint restraint assembly, the joint restraint assembly including a restraint base; and a gripper disposed within the restraint pocket, the gripper configured to rotate in the restraint pocket, the gripper further configured to engage the outer pipe surface to prevent removal of the pipe length from the socket.

A gland assembly for a piping element includes a gland comprising a joint restraint assembly comprising a restraint base, the restraint base defining a restraint pocket, the joint restraint assembly further comprising a gripper disposed within the restraint pocket, wherein the gripper is configured to rotate within the restraint pocket about and between a disengaged position in which the gripper is disengaged from the piping element and an engagement position in which the gripper is engaged with the piping element. The gland assembly also includes a cover removably attached to the restraint base, the cover comprising a bottom wall comprising a stop leg; a sidewall; a tab extending from the sidewall, the tab preventing the cover from being pushed onto the restraint base in a fully depressed configuration and preventing the stop leg from engaging the gripper into the disengaged position.

A gland assembly for a piping element includes a gland comprising a joint restraint assembly comprising a restraint base, the restraint base defining a restraint pocket, the joint restraint assembly further comprising a gripper disposed within the restraint pocket, wherein the gripper is configured to rotate within the restraint pocket about and between a disengaged position in which the gripper is disengaged from the piping element and an engagement position in which the gripper is engaged with the piping element. The gland assembly also includes a cover removably attached to the restraint base, the cover comprising a bottom wall comprising a stop leg; a sidewall; a tab extending from the sidewall, the tab preventing the cover from being pushed onto the restraint base in a fully depressed configuration and preventing the stop leg from engaging the gripper into the disengaged position.

A gland includes an annular ring, the annular ring defining a gland bore, the gland bore defining a gland axis extending through the annular ring; and a joint restraint assembly, the joint restraint assembly including a restraint base, the restraint base attached to the annular ring, the restraint base defining a restraint pocket, the restraint base including a structural rail; a gripper, the gripper disposed within the restraint pocket and configured to move in the restraint pocket; a spring biasing the gripper to move inwards towards the gland axis; and a cover contacting at least a portion of the restraint base.

A non-welded type branch piping reinforcement apparatus capable of preventing damage to a branch pipe system by increasing the strength of the branch pipe system by covering and protecting the branch pipe system connected to a header pipe, by a joint clamp, a connection pipe clamp, and a valve clamp includes: a joint clamp arranged to cover the branch pipe joint and the connection pipe and having an arc-shaped cross section; a connection pipe clamp arranged to cover the connection pipe and having an arc-shaped cross section; and a valve clamp arranged to cover the connection pipe and the valve and having an arc-shaped cross section, wherein one end of the connection pipe clamp is connected to the joint clamp and the other end of the connection pipe clamp is connected to the valve clamp.