Fluid handling – Larner-johnson type valves; i.e. – telescoping internal valve...
Patent
1998-05-28
1999-09-14
Michalsky, Gerald A.
Fluid handling
Larner-johnson type valves; i.e., telescoping internal valve...
251279, F16K 112
Patent
active
059506601
ABSTRACT:
A liquid flow control system comprises an upstream length of conduit, a downstream length of conduit, a valve housing, a cone valve seat and a sleeve valve. The valve housing is connected between the upstream length of conduit and the downstream length of conduit. The valve housing directs a flow of liquid that exits the upstream length of conduit through the valve housing and into the downstream length of conduit. The cone valve seat is mounted stationary in the valve housing. The sleeve valve is mounted in the valve housing for movement between a closed position wherein the sleeve valve is in engagement with the cone valve seat and an opened position wherein the sleeve valve is disengaged from the cone valve seat. The downstream length of conduit is comprised of a spacer section and a reducer section downstream from the spacer section. The spacer section spaces the reducer section a predetermined distance from the base of the fixed cone of the valve that results in a significant reduction or elimination of cavitation in liquid discharged from the valve.
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Hartman Brian T.
Hartman Thomas A.
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