Patent ID: 8985553
Filing Date: 2015-03-24
Classification: F16K,Y10T

Abstract:
1. A valve comprising: a fitting housing having an inlet and an outlet fluidly connected by a fluid flow path; an output port fitting swivelably attached to the outlet of the fitting; a seat member fixedly positioned in the inlet of the fitting; a sleeve having a sealing lip and a radially outwardly opening groove and being slidable within the fitting housing between a first open position in which the sealing lip is spaced from the seat member and a second closed position in which the sealing lip seals against the seat member; and a seal disposed in the radian outwardly opening groove to seal the sleeve to the fitting housing, wherein the sleeve has an axially opening annular groove formed in a leading face of the sleeve so that fluid which flows between the seat member and the sealing lip on the sleeve when the valve is initially opened is directed into the groove which then redirects a portion of that fluid toward the seat member, wherein the leading face of the sleeve is adjacent the seat member and the annular groove is formed in the leading face of the sleeve radially inward from the sealing lip.