Electrohydraulic servo-valve unit with hydraulic control - has control slider whose control and measuring stroke is converted into force by mechanical, series, regulating members
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Electrohydraulic servo valve with proportional pressure control - achieved by mechanical return spring and spring-centred 4-3 way valve
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Servo valve hydrodynamic controller - regulates medium flow direction by slots and drillings in control plunger
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Electrohydraulic servo valve with mechanical return adjustment - uses springs and controlled, pressure-regulating pistons to correct stroke
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Hydraulic servo valve with mechanical return - has emergency hand operation and incorporates multiway main control plunger
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SERVOHYDRAULIC DEVICE FOR LOAD-IN AND LOAD-INDEPENDENT CONTROL AND REGULATION OF PRESSURE PRESSURE APPLICATION OF A PRESSURE MOTOR DEPENDING ON AN ELECTRIC SIGNAL SIZE
