STRUCTURE AND FUNCTION SOLENOID VALVE SOLENOID VALVE ST2 HIGH-FLOW CONTROL T Port To hydraulic tank P1 Port From control valve (PA3 port) P2 Port From control valve (PB3 port) S Port To control valve (Pi2 port) 10-48 SK818-5 SK820-5 turbo T S P2 P2 RKS01140