Rotary shear valve with cleaning feature and method of using...

Details Rotary shear valve with cleaning feature and method of using... Rotary shear valve with cleaning feature and method of using...

G - Physics

01

N

137/132

G01N 1/00 (2006.01) F16K 11/00 (2006.01)

Patent

CA 1277208

ABSTRACT ROTARY SHEAR VALVE WITH CLEANING FEATURE AND METHOD OF USING SAME A rotary shear valve comprising two stators and a rotor is filled with specimen in a first rotary position. Movement of the rotor to a second rotary position divides the specimen into aliquots, one or more of which are dispensed in the second rotary position. A cleaning cycle is provided in which cleaning solution is introduced, with the rotor in a third rotary position, into circumferentially-extending arced grooves formed in the rotor faces, which contacts in the third rotary position those portions of the rotor faces likely to contain smeared specimen. The requirement for disassembly for cleaning is thereby reduced.

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