Electric Gate Valve (Hydraulic): 
Design and testing of fully electric subsea gate valve actuator: According to search results, the fully electric subsea gate valve actuator is a highly integrated electrical device, including a control system prototype and a drive system prototype, which are connected through subsea electrical connectors. This prototype is capable of operating 500 meters underwater, controlling and monitoring a fully electric subsea gate valve actuator with a nominal size of 5 1/8 inches and a rated working pressure of 5000 psi. The system has functions such as status monitoring, redundant communication, redundant power supply, redundant drive, and low-power open position maintenance. Compared with the hydraulic transmission system in traditional multi electric hydraulic subsea production systems, this all electric system prototype has a simpler structure and smaller size due to the complete use of electronic components to construct the system without hydraulic control devices.
Concept prototype of fully electric gate valve actuator: A new concept prototype of fully electric subsea gate valve actuator is proposed, which has key functions such as redundant drive, safe closing, auxiliary coverage, position indication, and low-power position maintenance. It meets the electric drive requirements of subsea gate valves and achieves safety integrity level 3. The prototype has been successfully developed and tested.
Manufacturer of hydraulic operated gate valves: CEPAI designed API-6A hydraulic gate valves are suitable for oil and gas well wellheads, designed, manufactured, and tested in accordance with API Spec. 6A. The opening and closing of the valve is controlled by a hydraulic piston, which allows for safer and faster operation. The valve has a balanced tail rod that can reduce valve torque and has an indication function. Double acting actuators require hydraulic power to open and close, providing positive control during operation.
Technical parameters of electric gate valve: Electric wedge gate valve is a linear motion valve that is more suitable for use with Z-type rotary actuator, with "on/off" function and intelligence. This type of valve has a simple structure and is one of the most common opening and closing valves. It uses a valve disc and work to pass and close the fluid medium in the pipeline. Widely used in industries such as power, metallurgy, petroleum, chemical, papermaking, sewage treatment, etc.
Electro hydraulic valve: An electro-hydraulic valve is an electrically operated valve that manages the flow of hydraulic fluid to the actuator and controls the hydraulic cylinder through a nozzle baffle amplifier. This type of valve includes a closed-loop control loop to manage the position of the spool, commonly referred to as a mechanical feedback valve (MFB), as feedback on the spool position is transmitted through a mechanical feedback spring.
Electro hydraulic actuator: Electraulic ™ The actuator is REXA's exclusive brand of electro-hydraulic actuators. It combines the simplicity of electric operation, the power of hydraulic pressure, and the reliability of solid-state electronics.