English to Russian Tech/Engineering Energy / Power Generation IGV Actuator

Hydraulic oil enters the actuator via a removable element filter with integral high _P indicator and is directed to a four-way electrohydraulic servo valve used in a three-way configuration. The PC1 control pressure output from the servo valve is directed to the upper cavity (rod end) of the hydraulic piston. When the force exerted by the hydraulic pressure exceeds the force of the opposing IGV force, the output piston retracts, rotating the Inlet Guide Vane unison ring in the opening direction.
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