Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Patent
1986-11-13
1987-12-08
Walton, George L.
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
137240, 134166C, 222148, 251309, 251312, B08B 300, B08B 900, F16K 5100
Patent
active
047112646
ABSTRACT:
A plug valve which may be steam sterilized in place, without disassembly or removal from the system, is adapted for use in fermentation processes where the interior surfaces must be sterilized between batches. The plug is provided with internal steam passages which extend longitudinally of the plug and in non-intersecting relation to the through port. The plug casing, in one embodiment, is provided with an inlet for applying steam to the top of the plug for entrance into the steam passages and out the bottom of the plug and through a bottom opening in a casing. In another embodiment, steam may be applied through the bottom opening and into the plug passages, and a steam outlet is provided in the face of the plug through which steam may be extracted through one of the valve casing ports.
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The Duriron Company, Inc.
Walton George L.
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