Rotationally molded nozzle liner and method for its installation

Details Rotationally molded nozzle liner and method for its installation Rotationally molded nozzle liner and method for its installation

1985-03-25

1987-02-10

Husar, Cornelius J.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

29157R, 29512, 285 55, 285222, 285291, 285214, 264126, F16L 5810

Patent

active

046418628

ABSTRACT:
There is disclosed a nozzle liner and a method for its installation for the protection of nozzles of vessels. The nozzle liner comprises a sleeve fitting the internal diameter of the nozzle and having an integral end flange. The nozzle liner is inserted into the nozzle with its integral end flange bearing against the outer face of the ring flange of the nozzle. The nozzle liner is rotationally molded with an end flange and is free of internal stresses and seams. The preferred method of its installation simultaneously flares and bonds the nozzle liner to the lining of the vessel in a fashion which confines the stressed portions of the nozzle liner in the annular lamination area. In this position, the end of the nozzle liner projects inside the vessel and the projecting end is thermoformed to flare it outwardly and form an annular seal laminated against the inner corrosion liner of the vessel. For this purpose a heated flaring and laminating tool is employed.

REFERENCES:
patent: 2266610 (1941-12-01), Martin
patent: 2453331 (1948-11-01), Martin
patent: 2907103 (1959-10-01), Lewis et al.
patent: 3030253 (1962-04-01), St. John et al.
patent: 3383750 (1968-05-01), Schroeder et al.
patent: 3390442 (1968-07-01), Sosnowski
patent: 3744951 (1973-07-01), Szatkowski
patent: 3970736 (1976-07-01), Gimaret
patent: 3984132 (1976-10-01), Sarson
patent: 4520547 (1985-06-01), Laursen et al.

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