A pipe junction includes a corrugated pipe including a pipe wall having an inner pipe wall and an outer pipe wall, the outer pipe wall having a plurality of peaks and a plurality of valleys disposed between the plurality of peaks, and an opening through the pipe wall. The corrugated pipe junction includes a hub and sleeve assembly received within the opening of the pipe wall, the hub and sleeve assembly including a hub received within the sleeve. When the hub and sleeve assembly is received within the opening of the pipe wall, a compressive seal is formed between the hub and sleeve assembly and the inner pipe wall such that the hub and sleeve assembly is sealingly engaged with the inner pipe wall around an entire circumference of the hub and sleeve assembly.

A connector assembly including a plate (10) having an orifice (10a) and a spigot (12), the spigot (12) having an internal flow path for liquid, and connector means (14) for connecting the spigot (12) to the metal plate (10) so as to guide the liquid flowing in the flow path through the orifice (10a), the connector (14) including a protruding collar structure (16) surrounding the orifice (10a). The connector means (14) further includes a ring-shaped snap-on module (18) configured to be fitted over the collar structure (16), the snap-on module (18) including a cylindrical insertion part (18a) configured to be inserted into an orifice (10a) of the collar structure (16), wherein a remote end of the cylindrical insertion part (18a) in the insertion direction is provided with first snap-on structures engaging with the collar structure (16).

A connector assembly including a plate (10) having an orifice (10a) and a spigot (12), the spigot (12) having an internal flow path for liquid, and connector means (14) for connecting the spigot (12) to the metal plate (10) so as to guide the liquid flowing in the flow path through the orifice (10a), the connector (14) including a protruding collar structure (16) surrounding the orifice (10a). The connector means (14) further includes a ring-shaped snap-on module (18) configured to be fitted over the collar structure (16), the snap-on module (18) including a cylindrical insertion part (18a) configured to be inserted into an orifice (10a) of the collar structure (16), wherein a remote end of the cylindrical insertion part (18a) in the insertion direction is provided with first snap-on structures engaging with the collar structure (16).

Disclosed herein is a method and structure for connecting first (110) and second (120) plastic pipes to each other. The structure includes: an arch-shaped heating element (130) which is made of conductive plastic material and has an arch cross-sectional shape to cover the connection hole (111), with an opening (131) formed in a central portion of the arch-shaped heating element (130); an electricity supply assembly including a plurality of unit electricity supplies disposed around the opening (131) in different directions, each of the unit electricity supplies including a pair of electric connection terminals (140) disposed parallel to each other in the arch-shaped heating element (130) on opposite sides of the opening (131); and the second plastic pipe (120) provided on the end thereof with a cover (121) covering at least an outer surface of the arch-shaped heating element (130).

Disclosed herein is a method and structure for connecting first (110) and second (120) plastic pipes to each other. The structure includes: an arch-shaped heating element (130) which is made of conductive plastic material and has an arch cross-sectional shape to cover the connection hole (111), with an opening (131) formed in a central portion of the arch-shaped heating element (130); an electricity supply assembly including a plurality of unit electricity supplies disposed around the opening (131) in different directions, each of the unit electricity supplies including a pair of electric connection terminals (140) disposed parallel to each other in the arch-shaped heating element (130) on opposite sides of the opening (131); and the second plastic pipe (120) provided on the end thereof with a cover (121) covering at least an outer surface of the arch-shaped heating element (130).

A multi-fitting rotatable fluid connection apparatus comprising a fluid entry fitting and first and second fluid discharge fittings. The fluid entry fitting comprises a first end connector threaded for attachment to a fluid source, and first and second distribution connectors. The first fluid discharge fitting has a first intake connector which receives fluid from the first distribution connector. A first rotation member is coupled between the first intake connector and the first distribution connector such that the first fluid discharge fitting is rotatable about a first axis of rotation. The second fluid discharge fitting has a second intake connector which receives fluid from the second distribution connector. A second rotation member is coupled between the second intake connector and the second distribution connector such that the second fluid discharge fitting is rotatable about a second axis of rotation.

A method of manufacturing a connector for a fluid transfer conduit comprises: manufacturing a tube which runs parallel to a central axis C from fibre-reinforced polymer, said tube comprising a hub portion 206 and a flange-forming portion 208 located adjacent to the hub portion 206, wherein the hub portion 206 comprises continuous circumferentially oriented fibre-reinforcement 210; and the hub portion 206 and the flange-forming portion 208 comprise longitudinally oriented fibre-reinforcement 212 which runs continuously from the hub portion 206 into the flange-forming portion 208; and bending the flange-forming portion 208 away from the central axis C such that it extends from the hub portion 206 at an angle to the central axis C.

The invention relates to a screw element comprising an internal torque limitation for fastening a liquid-conducting line to a device connector or to a coupling for a further line, said screw element having a connection part, which preferably has a thread, and an actuation part; and having a torque limiting unit that limits a torque that can be transmitted from the actuation part to the connection part, wherein the torque limiting unit is arranged between the connection part and the actuation part and has a limiting element, in particular a separate limiting element, that can be assembled from at least two limiting element parts connectable to one another and that limits the torque limiting unit in an axial direction of a longitudinal axis of the screw element. The invention further relates to a system comprising at least one screw element and a line fastened to the screw element.

A fitting holder designed for receiving a branch pipe during a welding operation in order to attach the branch pipe to a pipeline or a pipe, wherein differently dimensioned branch pipes can be received by the fitting holder, comprising a hollow-cylindrical housing with an upper region which, during the welding, faces away from the pipeline to be welded thereto, and a lower region which, during the welding, faces the pipeline to be welded thereto, wherein mounts for the axial fixing of the branch pipe which can be received by the fitting holder are arranged in the lower region, a ring arranged displaceably in the housing, and clamping elements pressing the ring downwards, wherein the fitting holder has different guide inside diameters which guide the differently dimensioned branch pipes by way of their differently dimensioned outside diameters in the fitting holder.

A pipe processing apparatus, for forming branches on pipes made of thermoplastic material, including a base adapted to be fastened to the outer wall of a pipe and a supporting structure which extends from the base; a support member is slidingly associated with the supporting structure and is adapted to receive an interchangeable processing/handling means configured to interact with the pipe; the apparatus also includes a movement means which engages the support member in order to move it on command along a processing axis. The supporting structure includes a single elongated structural element.