Proportional valves vs. servovalves (.PDF)

    Feb. 18, 2016

    Continuing the discussion from last month, Figure 4 shows the characteristics of a generic proportional valve. The ISO 5598 definition of a servovalve is electrically modulated continuous control valve (3.2.131) in which the deadband is less than 3% of the valving element (3.2.759) stroke...

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