An All-Electric Gate Valve Actuator for Subsea Production Control Systems, Part A: Prototype and Test

To bridge the gap that exists in key equipment of new subsea production control system, all-electric gate valve actuator, and exploit oil gas resources with high reliability safety while saving energy, this paper proposes a novel concept prototype an actuator which has functions redundant drive, failsafe closing, auxiliary override, position indication, low-power holding. It satisfied electrically-driven requirements valves achieved Safety Integrity Level 3. The was developed tested successfully. is suitable for controlling various sizes rated working pressures to minimize power consumption purpose keeping open safely closing them event electrical failure. An override position-indicating mechanism equipped emergency operation visual indication status valves.