Patent ID: 8827243

Claim:
A media control valve of the type having a body with a central bore and a spool sleeve positioned in the central bore, the media control valve comprising: a. A substantially cylindrical spool sleeve in the bore, having an outer diameter adapted to be received in the central bore and an inner diameter; b. A spool sleeve liner having an outer diameter adapted to be received in the spool sleeve inner diameter and an inner diameter adapted to receive the plunger; c. At least one removable liner seal between the spool sleeve inner diameter and the liner outer diameter, the spool sleeve of longer longitudinal length than the liner, wherein the portion of the spool sleeve outside the liner is of an intermediate inner diameter smaller than the outer diameter of the liner but larger than the inner diameter of the liner; and d. At least one circumferential seal being adapted for contacting the plunger; and e. A media inlet port in the body and in communication with the bore, the circumferential seal being positioned adjacent the port for minimizing a wedging action from accumulated media grit.