Yuken Manually Operated Directional Valves

These valves are manually operated to change the direction of hydraulic flow. They are available in the spool-operated and rotary types. These valves are structured in two types, detent and spring. The detent type maintains the spool position at the time the lever is operated, and the spool is returned to the center by the spring force. The spring type springs back the spool to either position of changeover, as is in the two-position valve. Figure 4.9 shows the spool-operated type and rotary type directional valves, respectively.

Manually Operated Directional Valve

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