摘要:
An emitting pipe boring method, for forming an ejection hole on a drip pressure reducing hose above a discharging portion of at least one drip which is adhered to an inside of the drip pressure reducing hose and includes an introducing portion, a pressure reducing portion and a discharging portion, includes a first step for forming an upward projection to be higher than a height of the drip at the discharging portion of the drip, a second step for forming a protruding portion on the drip pressure reducing hose by the upward projection of the drip when the drip is adhered to the inside of the drip pressure reducing hose, and a third step for forming an ejection hole of the drip pressure reducing hose by horizontally cutting an upper portion of the protruding portion formed on the drip pressure reducing hose through the second step.
摘要:
The converter for converting a mechanical joint to a socket fusion joint includes a body having an inner surface, a stop disposed on the inner surface, and a fusion surface extending from the stop for a distance d1. The converter also includes a marker disposed on the outer surface for providing a reference location as to where the body can be severed to keep d1nullFM, wherein FM is the minimum fusion surface length allowable for the fusion socket joint. A method for repairing a leaking mechanical joint is provided which includes severing the mechanical coupling from the converter and the pipe. The method also includes performing a facing operation on the converter end surface to form a faced end such that the fusion surface extends between the faced end and a stop for an axial distance d1nullFM. The method also includes delineating a stab depth measurement on the outer surface of the pipe, inserting the pipe into the passage until the stab depth measurement is adjacent the faced end, and forming a socket fusion joint having a uniform fusion length FLnulld1.
摘要:
A structural kit for the installation of a flow regulator valve in pipeline without interruption of the fluid flow in the pipeline. To make precise cutting of the desired portion of the pipeline in simple cutting operation and to just fit the valve into the cut-away portion thereof, a plane of the ring-shaped gear having cutting tools is tilted against a plane perpendicular to the axis of the pipe so as to cut away the pipe section the upper portion of which is longer than that of the bottom portion thereof.
摘要:
An extruder for the formation of a branch on a pipe comprises two arms and a mandrel. The arms are cranked and are pivoted to one another. The extruder is suitable for use when it is desired to connect a branch pipe to a main pipe.