A joining structure airtightly or liquid-tightly joins an outer peripheral surface of the pipe member and an inner peripheral surface of a cylindrical member to be mounted on the pipe member, and the pipe member and the cylindrical member are made inseparable by an annular protrusion formed on the inner peripheral surface of the cylindrical member.

A ferrule for coupling a tube to a fitting body of a fitting assembly. The ferrule may include a reduced thickness portion near a nut end of the ferrule, the reduced thickness portion being thinner than adjacent portions of the ferrule and configured to flex when the fitting assembly is made up. The ferrule may include a thin section toward the bite end of the ferrule, and an axially middle portion, between the thin section and the reduced thickness portion, may be configured to bow radially outwardly during assembly. The reduced thickness portion may have a radial thickness less than any other portion of the ferrule between the nut end and a bite edge of the ferrule closest to the nut end.

[Problem] To provide a pipe joint allowing reliable connection to a pipe P without flaring.

[Means of solving problem] The pipe joint includes a flare joint body 1F, a cap nut 2, and a stop ring 3. A curved pressure-contacting slope surface 32 of the stop ring 3 contacts a slope surface 5 with reduced-diameter tip of the flare joint body 1F under pressure to establish sealing by means of mutual contact between metallic surfaces. The pipe P is grasped in a tightly pressure-contacting state using a back tooth and a front tooth formed at a tip head 37 of a substantially cylindrical thin part 35 of the stop ring 3.

Compression fittings for pipes having a range of diameters, including a support body with a central section between end sections, the central section having a smaller diameter than the end sections, with a transition surface between the central section and each end section. A gasket fits over a pipe and engages one of the support body end section end surfaces. A fitting nut is movable axially over the support body to draw the support body and the gasket together in the axial direction and bias the gasket radially inward against the pipe. A grip ring encircles the pipe at one gasket end and has a surface engaging the fitting nut whereby the fitting nut biases the grip ring radially inwardly toward the pipe. An insert adapter has a hub with a radially extending flange may block the other gasket end to load the gasket between its axial ends.

Compression fittings for pipes having a range of diameters, including a support body with a central section between end sections, the central section having a smaller diameter than the end sections, with a transition surface between the central section and each end section. A gasket fits over a pipe and engages one of the support body end section end surfaces. A fitting nut is movable axially over the support body to draw the support body and the gasket together in the axial direction and bias the gasket radially inward against the pipe. A grip ring encircles the pipe at one gasket end and has a surface engaging the fitting nut whereby the fitting nut biases the grip ring radially inwardly toward the pipe. An insert adapter has a hub with a radially extending flange may block the other gasket end to load the gasket between its axial ends.

Compression fittings for pipes having a range of diameters, including a support body with a central section between end sections, the central section having a smaller diameter than the end sections, with a transition surface between the central section and each end section. A gasket fits over a pipe and engages one of the support body end section end surfaces. A fitting nut is movable axially over the support body to draw the support body and the gasket together in the axial direction and bias the gasket radially inward against the pipe. A grip ring encircles the pipe at one gasket end and has a surface engaging the fitting nut whereby the fitting nut biases the grip ring radially inwardly toward the pipe. An insert adapter has a hub with a radially extending flange may block the other gasket end to load the gasket between its axial ends.

A magnet assembly (200) is provided that comprises a magnet keeper (204) configured to hold at least one magnet (202). The bracket (208) is configured to receive the magnet keeper (204) and also configured to be attachable to a flowmeter (5) sensor assembly (10). A first surface (216) is formed on the magnet keeper (204), and a second surface (218) is formed on the bracket (208), wherein the first and second surfaces (216, 218) are configured to mate so to provide a radial alignment of the magnet keeper (204) that is within a predefined radial tolerance range.

An installation apparatus for connecting a fluid fitting to a fluid element includes a tool mechanism having a first abutment surface and a second abutment surface that faces and is movable relative to the first abutment surface; a first sensor configured to detect a first property of the installation apparatus or fluid fitting and provide a first output corresponding to the first property; a second sensor configured to detect a second property of the installation apparatus or fluid fitting and provide a second output corresponding to the second property; and a processing unit that is configured to generate a first resulting data set based on the first output and second output, and compare the resulting data set with a first predetermined data set to determine if the first resulting data set is compliant with the first predetermined data set.

A pipe joint allowing reliable connection to a pipe P without flaring. The pipe joint includes a flare joint body 1F, a cap nut 2, and a stop ring 3. A curved pressure-contacting slope surface 32 of the stop ring 3 contacts a slope surface 5 with reduced-diameter tip of the flare joint body 1F under pressure to establish sealing by means of mutual contact between metallic surfaces. The pipe P is grasped in a tightly pressure-contacting state using a back tooth and a front tooth formed at a tip head 37 of a substantially cylindrical thin part 35 of the stop ring 3.