| 主权项 |
1. An installation fitting for use with an induction weldable pipe connector and a multi-layer pipe for forming a welded sealed joint connecting the installation fitting and the multi-layer pipe,
the induction weldable pipe connector including i) an induction weldable pipe socket pair having a first induction weldable pipe socket and a second induction weldable pipe socket, ii) an internal thermoplastic solder lining having a central inward directed stop, and iii) a solid metal susceptor sleeve entirely peripherally enveloping the internal thermoplastic solder lining, the multi-layer pipe including i) a multi-layer construction having an external plastic layer, an aluminum core layer, an internal plastic layer, and ii) an exposed annular pipe end face having an annular aluminum core end face, the installation fitting comprising a tubular plastic pipe end having a pipe end centerline and an exposed external peripheral plastic surface co-directional with said pipe end centerline, said pipe end having a shoulder converging to a tubular pipe tang having at least two O rings, the arrangement being that said pipe end stops against the central inward directed stop on forced sliding insertion into the first induction weldable pipe socket and the multi-layer pipe stops against the central inward directed stop on forced sliding insertion into the second induction weldable pipe socket thereby sealingly inserting said pipe tang into the multi-layer pipe, whereupon inducing electromagnetic induction in the susceptor sleeve melts the internal thermoplastic solder lining for forming a welded sealed joint connecting the installation fitting and the multi-layer pipe. |
