Low side, 3-position, hot oil shuttle valve
Low-side (hot oil) shuttle cartridges allow hot oil to be diverted from the low-pressure side of a closed loop system. When both work ports (ports 2 and 4) are at equal pressures the valve is spring-centered to an all-ports-blocked position. When one of the work ports (port 2 or 4) sees a higher pressure the opposite work port is connected to the common port (port 3).
Low side, 3-position, hot oil shuttle valve
Low-side (hot oil) shuttle cartridges allow hot oil to be diverted from the low-pressure side of a closed loop system. When both work ports (ports 2 and 4) are at equal pressures the valve is spring-centered to an all-ports-blocked position. When one of the work ports (port 2 or 4) sees a higher pressure the opposite work port is connected to the common port (port 3).