Abstract:
An irrigation pipe (IQ) comprising at least one layer (14) is provided. The layer (14) has a maximum longitudinal tensile strength in the longitudinal direction of the pipe and a maximum tensile hoop strength along the circumference of the pipe. The value of the maximum longitudinal tensile strength is substantially less than the value of the maximum tensile hoop strength.
Abstract:
An irrigation pipe (12) with holes is provided. The pipe is, at least in the area of each hole, multilayered. At least top (152a) and bottom (152b) layers of the pipe (12) are made of a water-repellant material, and an inner layer (154) of the pipe (12) is made of a porous material. The hole is defined by a cut surface of the pipe wall. The cut surface comprises a seal, which covers at least the inner layer (154). Each layer (152a, 152b, 154) may be bonded to adjacent layers.
Abstract:
A fitting assembly (10) that can attach to an open end (12) of a pipe (14) has a nipple (18) and a clamp (20). For attachment, the pipe (14) is fitted with its open end over the nipple (18) and the clamp (20) fits over the pipe (14) where the pipe fits over the nipple (18). The nipple (18) has a seal (32) and a barb means (34) that is located rear to the seal (32) that contact an inner face of the pipe and the clamp (20) having an axial extension that is sized to overlie the barb means (34) and the seal (32) in order to press the pipe (14) against the barb means (34) and the seal (32).
Abstract:
The present invention relates to a method of production of an irrigation pipe (12), said method including: providing a strip of flexible weldable or bondable material with a plurality of irrigation elements (14) fitted to said strip; bending or twisting said strip so as to juxtapose or overlap lateral edges thereof; and welding or bonding integrally said edges so as to obtain a seam and a closed pipe section.
Abstract:
An irrigation pipe connector (16) has a core (18) that is adapted to connect to an irrigation element (40) and a wing (20) that is attachable to a wall of a pipe (10). The wing (20) is provided with resiliency to allow the connector (16) to deform in response to changing fluid pressures in the pipe (10). In addition, the wing (20) may be provided with a thin segment in order to reduce potential damage during welding of the wing to the wall of the pipe (10).
Abstract:
An irrigation pipe (58) formed from a sheet that is rolled into a tube about a longitudinal axis of the sheet. The pipe has a watertight layer and a fabric layer (30). The fabric layer comprises a first fiber arrangement including first main fibres (34) having a first orientation and a second fiber arrangement including second main fibers (36) having a second orientation. The first and second orientations are transverse relative to each other and to the longitudinal axis when viewed in the sheet before it is rolled.