UNIVERSAL SHAPED PART OF POLYMER PRESURE PIPE Russian patent published in 2008 - IPC F16L15/08 

FIELD: mechanics, pipelines.

SUBSTANCE: invention relates to shaped parts of composite polymer water supply and sewage pressure pipelines. Invention allows lower costs of the shaped sections and higher joint reliability. The polymer pressure pipeline shaped section contains a threaded sleeve, a sealing element, an inserted bushing and a nut, the sealing element being made up of, at least, two flat flexible O-rings, while the inserted bushing representing a collet tapered inserted bushing with retaining teeth on its inner surface and incorporating, at least, two grooves on its both sides forms, along with the tapered surface of the sleeve shaped surface, shaped section nut tapered surface, flexible O-rings and polymer pipe, a collet clamp preventing the pipe shaped section from axial travel caused by the liquid pressure in the pipeline.

EFFECT: lower costs, higher reliability of joint.

1 dwg