Valve for clean chemical reactor.

摘要

A vessel (11) including an emptying means which comprises a valve housing means (19) integral with and fixed to the vessel; a valve body means (41) removably mounted to the valve housing means; a means (51,55) for sealing the valve body means to the valve housing means; and a valve means (57) which functions to commence and halt the flow of materials from the vessel through the valve housing means and through the valve body means. The valve body means functioning to hold, align and contain the valve means. The means for sealing also functions to inhibit and prevent the accumulation and retention of contamination from materials flowing from the vessel through the valve housing means and the valve body means past and in direct contact with the means for sealing. <IMAGE>