Patent ID: 8919381

Claim:
A fluid rerouting system for a valve body having a mating bore with a plurality of fluid connections and a balance pressure line, the system comprising: a valve sleeve having a first end and a second end and configured and dimensioned to be inserted in the mating bore and defining a plurality of ports disposed to be substantially aligned with the plurality of fluid connections when said valve sleeve is inserted, wherein said first end aligns with the balance pressure line; a valve spool configured and dimensioned to fit slidably in said valve sleeve and having a plurality of lands configured for routing fluid between said plurality of ports, wherein at least one of said plurality of lands and said valve sleeve form a chamber, said valve spool being configured for selective movement between at least first and second positions within said sleeve; an aperture traversing said at least one of said plurality of lands so that fluid may enter said chamber; and means for blocking the balance pressure line in the valve body to prevent communication with said valve sleeve.