Flow splitting device for web profile control stock dilution sys

Paper making and fiber liberation – Apparatus – Automatic control

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162259, 162336, D21F 108

Patent

active

057923221

ABSTRACT:
A Y-shaped flow splitter passes papermaking fluid with some fibers with reduced clogging and has a flat surface opposite the leg of the Y where the flow divides into the two arms of the Y. A generally flat rectangular surface is positioned opposite the leg of the Y of the flow splitter which divides the flow evenly without providing a place for fibers to collect and thus clog the flow through the splitter. The splitter allows the flow to a pair of dilution tubes to be controlled by a single valve with a single flow passage reducing clogging and valve cost. The flow splitter is constructed of stainless steel by a by casting process. A process known commercially as the Extrudehone process is used to produce smooth flow passages.

REFERENCES:
patent: 5196091 (1993-03-01), Hergert
patent: 5560807 (1996-10-01), Hauser
"ExtrudeHone" brochure, ExtrudeHone Corporation, 8075 Pennsylvania Avenue, Irwin, PA 15642.

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