Circuit Examples of Proportional Electro-hydraulic Control Valves
Figures 8.14 and 8.15 compare circuits equipped with the general hydraulic control valves and the proportional electro-hydraulic control valves. As is evident from the figures, the proportional electro-hydraulic control valves can generally replace many of control valves in hydraulic systems. Also, they simplify the circuit and the system sequence, bringing about easier maintenance and management. Furthermore, the proportional electro-hydraulic control valves provide continuous control, which is impossible with any combination of the general hydraulic control valves. With the proportional electro-hydraulic control valves, hydraulic systems may be used in a significantly wider range of application areas.
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