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GEA Valve Automation – Control and Feedback Systems
www.gea.comof the valve disc between the open/ close positions • Automatic setup SES – control top for potentially explosive areas • For open/close position feedback and actuator control • Intrinsically safe sensors and solenoid valves INA / RM – proximity switch holder on the actuator • For up to 2 proximity switches M12×1
MISCELLANEOUS SYMBOLS: VALVE ACTUATORS
www.hanford.gov4. safety solenoid valve (sy) is to trip the valve to its failure position. 5. remotely maintainable modulating control valves will utilize a pneumatic piston actuator. 6. actuator type (single acting, double acting, etc.) and solenoid type (3-way, 4-way, etc.) will be specified on the individual valve datasheets. 7.