A pressure hose (1) for a water-carrying system is shown and described, especially for connecting sanitary taps or for connecting parts of the water-carrying system, having a corrugated inner hose (2) made of plastic, wherein at least one hose end (3, 5) of the pressure hose (1) is provided with a connecting piece (4, 6), designed such that it differs from the inner hose (2), for joining the pressure hose (1) to a complementarily designed connecting piece of a sanitary tap and/or a part of the water-carrying system. According to the invention, it is provided that the inner hose (2) and the connecting piece (4, 6) are formed as one piece and the inner hose (2) and the connecting piece (4, 6) are preferably produced via extrusion in a common extrusion process.

A bell and spigot connection and composite gasket seat spigot ring provides seal mainline pipes (e.g. HDPE and SRPE pipes). An upper (HDPE) spigot sleeve defines an annular groove to provide a gasket seat and is welded to a lower (HDPE) sleeve. A metal ring is received in a ring cavity defined between the sleeves. The metal ring has a height that is a substantial proportion of its width, (e.g. 50% or more). A stepped spigot surface receives a liner surface at a pipe end for welding. A bell is formed on a first pipe segment from a second pipe segment having a same construction where the second segment is larger in diameter so that an exterior surface (e.g. a top of a helically wound rib or top of annularly spaced spacer blocks) of the first segment may be welded to an interior surface (pipe liner) of the second segment.

Losses in the connecting line between the Pressure Wave Generator and the cold head of a GM type pulse tube refrigerator, are reduced while maintaining or improving upon the desirable features of a standard corrugated hose connecting line including vibration isolation, separation distance, and mounting convenience. The basic means are to reduce the internal void volume of the convolutions in a corrugated hose in combination with reducing the number of corrugations, adding fillers to the void volumes, and vibration absorbing coatings.

A garden hose includes a corrugated pipe and a braided layer. The corrugated pipe defines an axial direction. The braided layer is sleeved to the corrugated pipe. An inner diameter of the braided layer is smaller than an outer diameter of the corrugated pipe when the corrugated pipe and the braided layer are separated from each other, and the braided layer is radially stretched by and abutted against the corrugated pipe when being sleeved to the corrugated pipe.

A pressure hose for a water-carrying system, especially for connecting sanitary taps or for connecting parts of the water-carrying system, having a corrugated inner hose made of plastic. At least one hose end of the pressure hose is provided with a connecting piece, designed such that it differs from the inner hose, for joining the pressure hose to a complementarily designed connecting piece of a sanitary tap and/or a part of the water-carrying system. The inner hose and the connecting piece are formed as one piece and the inner hose and the connecting piece are preferably produced via extrusion in a common extrusion process.

A connector to fluidly connect ends of conduits. The connector comprises a connector tubular body which includes a wall, a stopper and one or more conduit-retainer. The wall has an inner and outer surface, with a first conduit-receiving section and a second conduit-receiving section being defined at a first and second ends of the wall, respectively. Each of the first and second conduit-receiving sections are configured to internally and concentrically receive an end portion of a conduit. The stopper extends radially inward from the inner surface of the wall, between the first and the second conduit-receiving sections and is provided with a seal on each side of the stopper adapted to restrict fluid leakage when conduits are installed in the connection. The at least one conduit-retainer extends inwardly from the inner surface of the wall. The at least one conduit-retainer being lockably engageable with a conduit being received.