Abstract: A Cu—Zn—Si alloy having low lead content is described, along with components such as plumbing fittings suitable for drinking water pipes, and methods of manufacturing same are described.

Abstract: The invention relates to a tube cutter (1:1.1) for cutting a round tube (100). The tube cutter (1:1.1) comprises a main body (2:2.1), a cutting device (3) assigned to the main body (2:2.1), and a rotary guide (4) for the main body (2:2.1). The rotary guide (4) is designed to rotatably receive the round tube (100) in order to allow for a rotation of the tube cutter (1:1.1) about the central axis (110) of the round tube (100) along its outer circumference (120). The cutting device (3) has a cutting part (5) with a blade (6) lying in a cutting plane (7) and is designed such that, with a rotation of the tube cutter (1:1.1) about the round tube (100), the blade (6) executes a circumferential cut (400) in the cutting plane (7). In the tube cutter (1:1.1), at least one forming element (8) is also provided, which protrudes into the cutting plane (7) or is positioned at least in the cutting plane (7) and is designed such that, with the rotation of the tube cutter (1:1.

Abstract: A press fitting includes a socket defining at one end an opening for insertion of an end of a tube, a sealing ring within the socket, and a gripping ring within the socket, arranged in front of the sealing ring in the direction of insertion of the tube, wherein the gripping ring is provided with at least one weakening feature, in particular in the form of notches, being reducible in size by deforming the gripping ring when applying a pressing action on the socket such that an inner diameter D2 of the gripping ring is reduced. A joint assembly may comprise such a press fitting having a tube inserted therein.

Abstract: A press fitting includes a socket defining at one end an opening for insertion of an end of a tube, a sealing ring within the socket, and a gripping ring within the socket, arranged in front of the sealing ring in the direction of insertion of the tube, wherein the gripping ring is provided with at least two weakening features in the form of notches, being reducible in size by deforming the gripping ring when applying a pressing action on the socket such that an inner diameter D2 of the gripping ring is reduced. A joint assembly may include such a press fitting having a tube inserted therein.

Abstract: A fitting (3, 3?) for connecting to a tubular element (5, 5?) having a first end section (9, 9?) comprising at least one first connection element (21, 21?), wherein the diameter of at least a part of the first connection element (21, 21?) can be reduced in a radial direction in order to produce a connection, wherein the first connection element (21, 21?) comprises at least one first hook element (21, 21?) and/or at least one first crimp (237, 437) configured to be connected in force-fit and/or form-fit manner to at least one second crimp (7, 7?) and/or at least one second hook element (235) formed on the outer surface of the tubular element, when the diameter of at least a part of the first connection element (21, 21?) is reduced, as well as a tubing connection and a method for connecting a fitting to a tubular element.

Abstract: A press fitting includes a socket defining at one end an opening for insertion of an end of a tube, a sealing ring within the socket, and a gripping ring within the socket, arranged in front of the sealing ring in the direction of insertion of the tube, wherein the gripping ring is provided with at least one weakening feature, in particular in the form of notches, being reducible in size by deforming the gripping ring when applying a pressing action on the socket such that an inner diameter D2 of the gripping ring is reduced. A joint assembly may comprise such a press fitting having a tube inserted therein.

Abstract: A press fitting comprises a socket defining at one end an opening for insertion of an end of a tube, a sealing ring within the socket, and a gripping ring within the socket, arranged in front of the sealing ring in the direction of insertion of the tube, wherein the gripping ring is provided with at least two weakening features, in particular in the form of notches, being reducible in size by deforming the gripping ring when applying a pressing action on the socket such that an inner diameter D2 of the gripping ring is reduced. A joint assembly may comprise such a press fitting having a tube inserted therein.

Abstract: A pipe connector including a connector body having a passage; a plurality of flexible pieces; a locking cap; a first stopping member; and a second stopping member. The plurality of flexible pieces is circumferentially disposed at one end of the passage. One end of each of the flexible pieces is fixedly connected to the connector body. The locking cap includes a first end close to the connector body and a second end opposite to the first end. A conical surface is formed on the internal wall of the second end. The conical surface coordinates with the external wall of the flexible pieces to lock the pipe. The first stopping member is disposed on the external wall of the connector body or the flexible pieces; and the second stopping member is disposed on the internal wall of the first end of the locking cap and coordinates with the first stopping member.

Abstract: A pipe adaptor, including an adaptor body; an axial passage; a socket connecting segment for connecting with a socket; a pipe connecting segment for connecting with a pipe; a first O-shaped sealing ring; and a second O-shaped sealing ring. The axial passage is disposed in the adaptor body. The first O-shaped sealing ring is disposed on the socket connecting segment for forming a sealed connection with the internal wall of the socket. The second O-shaped sealing ring is disposed on the pipe connecting segment for forming a sealed connection with the internal wall of the pipe. A pipe connector including the pipe adaptor.

Abstract: A pipe connector not only allows a flexible pipe (like PEX pipe) easy to enter, but also ensures the sealing of socket and holding of pipe connection when the pipe is injected with liquid and gets pressurized to expand, the pipe connector includes a socket body in which in the direction of pipe entry, configuring in sequence: grab ring, retainer and O-shaped sealing ring; when pipe enters the socket, flange arranged on the grab ring is deflected; when the pipe is injected with liquid and gets pressurized to expand, the O-shaped sealing ring is compressed and expands axially, then the O-shaped sealing ring pushes the retainer, so as to push the grab ring to move in reverse direction of pipe entry, thus locking the pipe.

Abstract: A pipe fitting arrangement in at least one embodiment comprises a pipe, a housing defining at one end an opening for insertion of an end of the pipe, a metallic grip ring and a sealing ring downstream the grip ring in the insertion direction of the pipe, the location of both the grip ring and the sealing ring between the housing and the pipe being defined by the housing, wherein the grip ring is provided with a first amount of first internal teeth directed toward the pipe in a first direction with a first inclination in the pipe insertion direction for engagement with the pipe, and with a second amount of second external teeth directed towards the housing in a second direction with a second inclination away from the pipe insertion direction for engagement with the housing. Further disclosed herein is a method for forming such a pipe fitting arrangement.