The present disclosure relates to a male connector holder for an automatic chemical supply apparatus in which, before a chemical is supplied, a neck region of a male connector is pressed through a clamping holder and a support pad to perform alignment on the male connector so that the male connector may be accurately fastened to a female connector.

A pipe joint (1) comprising: a tubular main body (10) having a flow path inside, which is formed of a resin comprising a copolymer having one or more selected from a vinyl cyanide monomer unit and an acrylic monomer unit, a rubber component, and an aromatic vinyl monomer unit; and a socket section (20a) integrally formed with the main body (10), wherein: the main body (10) has a foamed resin layer (30) and a non-foamed resin layer (50) covering the foamed resin layer (30); the amount of the rubber component in the foamed resin layer (30) as determined by pyrolysis-gas chromatography/mass spectrometry is within a specific range; the amount of the rubber component in the non-foamed resin layer (50) is within a specific range; and a ratio (L.sub.a/L.sub.a) of length (L.sub.a) from a base end (21a) to an opening end (22a) of the socket section (20a) to a thickness (d.sub.a) of the socket section (20a) at the opening end is 2.0 or more and 10.0 or less.

A pipe joint (1) comprising: a tubular main body (10) having a flow path inside, which is formed of a resin comprising a copolymer having one or more selected from a vinyl cyanide monomer unit and an acrylic monomer unit, a rubber component, and an aromatic vinyl monomer unit; and a socket section (20a) integrally formed with the main body (10), wherein: the main body (10) has a foamed resin layer (30) and a non-foamed resin layer (50) covering the foamed resin layer (30); the amount of the rubber component in the foamed resin layer (30) as determined by pyrolysis-gas chromatography/mass spectrometry is within a specific range; the amount of the rubber component in the non-foamed resin layer (50) is within a specific range; and a ratio (L.sub.a/L.sub.a) of length (L.sub.a) from a base end (21a) to an opening end (22a) of the socket section (20a) to a thickness (d.sub.a) of the socket section (20a) at the opening end is 2.0 or more and 10.0 or less.

A resin joint 20 includes an outer cylinder 21 molded by a resin material capable of transmitting laser light and an inner cylinder 22 disposed facing the inner peripheral surface of the outer cylinder 21. An annular protrusion 22b that protrudes in the radial direction and extends in the circumferential direction is formed on the inner peripheral surface of the outer cylinder 21 or the outer peripheral surface of the inner cylinder 22. The axial end of the resin tube 10 is inserted into an annular space 30 and is deformed in the radial direction following the annular protrusion 22b, and a region deformed in the radial direction has a surface that is in contact with the inner peripheral surface of the outer cylinder 21. The inner peripheral surface of the outer cylinder 21 and the outer peripheral surface of the resin tube 10 are laser-welded.

A resin joint 20 includes an outer cylinder 21 molded by a resin material capable of transmitting laser light and an inner cylinder 22 disposed facing the inner peripheral surface of the outer cylinder 21. An annular protrusion 22b that protrudes in the radial direction and extends in the circumferential direction is formed on the inner peripheral surface of the outer cylinder 21 or the outer peripheral surface of the inner cylinder 22. The axial end of the resin tube 10 is inserted into an annular space 30 and is deformed in the radial direction following the annular protrusion 22b, and a region deformed in the radial direction has a surface that is in contact with the inner peripheral surface of the outer cylinder 21. The inner peripheral surface of the outer cylinder 21 and the outer peripheral surface of the resin tube 10 are laser-welded.

An apparatus and method for installing an aircraft bulkhead connector with a bulkhead is disclosed where access to only one side of the bulkhead is required. The disclosure is also applicable to installation of bulkhead connectors in aircraft fuel tanks. An aircraft bulkhead connector and installation tool is also disclosed. The bulkhead connector includes a female end portion and the installation tool includes a male end portion. The male end portion of the installation tool is removably engaged with the female end portion of the bulkhead connector, such that the installation tool protrudes beyond the female end portion of the bulkhead connector. The installation tool may be inserted through an aperture in a bulkhead and used to both position and hold the bulkhead connector during the installation process.

An apparatus and method for installing an aircraft bulkhead connector with a bulkhead is disclosed where access to only one side of the bulkhead is required. The disclosure is also applicable to installation of bulkhead connectors in aircraft fuel tanks. An aircraft bulkhead connector and installation tool is also disclosed. The bulkhead connector includes a female end portion and the installation tool includes a male end portion. The male end portion of the installation tool is removably engaged with the female end portion of the bulkhead connector, such that the installation tool protrudes beyond the female end portion of the bulkhead connector. The installation tool may be inserted through an aperture in a bulkhead and used to both position and hold the bulkhead connector during the installation process.

The present disclosure relates to a male connector holder for an automatic chemical supply apparatus in which, before a chemical is supplied, a neck region of a male connector is pressed through a clamping holder and a support pad to perform alignment on the male connector so that the male connector may be accurately fastened to a female connector.

The present disclosure relates to a male connector holder for an automatic chemical supply apparatus in which, before a chemical is supplied, a neck region of a male connector is pressed through a clamping holder and a support pad to perform alignment on the male connector so that the male connector may be accurately fastened to a female connector.

A tube assembly including a cross-linked polyethylene tube having a radial projection and a coupler, and a method for forming the tube assembly. A forming assembly is configured to dispose the radial projection of the cross-linked polyethylene tube through the coupler after the completion of the cross-linking process.