Patent ID: 9032819
Filing Date: 2015-05-19
Classification: F16K,G01N

Abstract:
1. A liquid sampling valve for transferring a liquid sample from a primary stream to a secondary stream, said valve comprising: a stator having a stator face, a primary stator passage extending along a primary path through said stator and opening to said stator face through a first primary port, an inlet secondary stator passage extending along a secondary path through said stator and opening to said stator face through a first port, an outlet secondary stator passage extending along the secondary path through said stator and opening to said stator face through a second port, an inlet discharge passage extending along a discharge path through said stator and opening to said stator face through a third port, and an outlet discharge passage extending along the discharge path through said stator and opening to said stator face through a fourth port; and a rotor having a rotor face in fluid-tight contact with said stator face at an interface, said rotor face including a shuttle configured to receive a liquid aliquot in fluid communication with said interface, wherein said rotor is rotatable with respect to said stator about an axis of rotation to sequentially move said shuttle into a plurality of circumaxially spaced stations, a first station aligning said shuttle in fluid communication with said primary path at said first primary path port, a second station aligning said shuttle in fluid communication with said secondary path at said first and second ports, and a third station aligning said shuttle in fluid communication with said discharge path at said third and fourth ports.