Tube end connector which connects a first tubular member and a second tubular member while securing sealing performance is provided. The tube end connector according to the present invention is provided with a heat-shrinkable Teflon® tube 4b which covers both outer surface of an end portion of a zeolite membrane covered ceramic tube 1 and outer surface of an end portion of a metal tube 5 in conditions of jointing the end portion of the zeolite membrane covered ceramic tube 1 and the end portion of the metal tube 5; and a heat-shrinkable fluororubber tube 3b which is placed at the region between the heat-shrinkable tube 4b and the outer surfaces both of the first tubular member and the second tubular member, and which has solvent resistance and swelling property.

A pipe connecting assembly includes a valve body, a valve stem and a fitting pipe part. The valve body includes a first valve body part and a second valve body part. The valve body has a valve cavity. The first valve body part has a first cavity, and the second valve body part has a second cavity. The valve stem is at least partially located in the valve cavity. The valve body is provided with a valve port. The valve stem can move in the valve cavity to close or open the valve port, so that the first cavity is separated from or in communication with the second cavity. The pipe connecting assembly further includes an adhesive layer located between the fitting pipe part and the first valve body part. Such a structure is beneficial to improving the connection reliability of the pipe connecting assembly.

One of a first metallic pipe containing a first metal as a main component and a second metallic pipe containing a second metal as a main component includes an expanded-diameter connecting part which is formed at an end part of the one metallic pipe. An inner diameter of the end part is greater than an inner diameter of an adjacent part that is adjacent to the end part. An intermetallic compound layer of the first and second metal is present at an interface of the first and second metal located between a brazing filler metal and the one or the other of the metallic pipes. A thickness of the intermetallic compound layer is configured such that the thickness of an end portion on the side of a base end is smaller than the thickness of an end portion on the side of an open end.

One of a first metallic pipe containing a first metal as a main component and a second metallic pipe containing a second metal as a main component includes an expanded-diameter connecting part which is formed at an end part of the one metallic pipe. An inner diameter of the end part is greater than an inner diameter of an adjacent part that is adjacent to the end part. An intermetallic compound layer of the first and second metal is present at an interface of the first and second metal located between a brazing filler metal and the one or the other of the metallic pipes. A thickness of the intermetallic compound layer is configured such that the thickness of an end portion on the side of a base end is smaller than the thickness of an end portion on the side of an open end.

The invention relates to a coupling which includes at least: a tubular coupling member suitable for receiving a pipe and comprising one or more annular ribs, and a crimping ring arranged on the coupling member and translatably movable between a position for inserting the pipe into the coupling member, and a crimping position, in which the crimping ring immobilizes the pipe relative to the coupling member after the deformation of the one or more ribs. Recesses are formed between the coupling member and the pipe in the crimping position. The coupling has at least one exhaust opening arranged such as to provide fluid communication between said at least one recess and the outside of the coupling.

The invention relates to a coupling which includes at least: a tubular coupling member suitable for receiving a pipe and comprising one or more annular ribs, and a crimping ring arranged on the coupling member and translatably movable between a position for inserting the pipe into the coupling member, and a crimping position, in which the crimping ring immobilizes the pipe relative to the coupling member after the deformation of the one or more ribs. Recesses are formed between the coupling member and the pipe in the crimping position. The coupling has at least one exhaust opening arranged such as to provide fluid communication between said at least one recess and the outside of the coupling.

A dissimilar metal connection arrangement comprising a dissimilar metal connection between a first member made of a first metal and having a first end, and a second member made of a second metal different from said first metal with regard to its metallurgical behavior, and having a second end, wherein the first end of the first member is fixedly connected to the second end of the second member. An increased lifetime of the connection is achieved by arranging a heating means at said dissimilar metal connection for controlled heating of said dissimilar metal connection.

A dissimilar metal connection arrangement comprising a dissimilar metal connection between a first member made of a first metal and having a first end, and a second member made of a second metal different from said first metal with regard to its metallurgical behavior, and having a second end, wherein the first end of the first member is fixedly connected to the second end of the second member. An increased lifetime of the connection is achieved by arranging a heating means at said dissimilar metal connection for controlled heating of said dissimilar metal connection.

Described is a heating device for thermally connecting a pipe, which has a first plastic material, to a bushing, which has a second plastic material, and which surrounds at least a section of the pipe, wherein an inductively heatable heating means is located between the pipe and the bushing and/or integrated in the pipe and/or the bushing. The heating device has a coil arrangement, which is excitable by a generator, and which has a first coil, which has at least one complete winding within a first cross-sectional area, and a second coil, which is electrically coupled to the first coil, and which has at least one complete winding within a second cross-sectional area. The first cross-sectional area is different from the second cross-sectional area. Furthermore, a heating system having such a heating device as well as a method for thermally connecting a pipe to a bushing are described.

Described is a heating device for thermally connecting a pipe, which has a first plastic material, to a bushing, which has a second plastic material, and which surrounds at least a section of the pipe, wherein an inductively heatable heating means is located between the pipe and the bushing and/or integrated in the pipe and/or the bushing. The heating device has a coil arrangement, which is excitable by a generator, and which has a first coil, which has at least one complete winding within a first cross-sectional area, and a second coil, which is electrically coupled to the first coil, and which has at least one complete winding within a second cross-sectional area. The first cross-sectional area is different from the second cross-sectional area. Furthermore, a heating system having such a heating device as well as a method for thermally connecting a pipe to a bushing are described.