DY electric actuators are gradually showing a development trend
DY electric actuatorThe control mode of electric actuators is generally divided into two categories: switch type (open-loop control) and regulating type (closed-loop control) according to the production process control requirements.
DY electric actuators control the opening or closing of valves, which are either in the fully open or fully closed position. These types of valves do not require control of the medium flow rate, and the split structure control unit is separate from the electric actuator. The electric actuator cannot control the valve alone, and an additional control unit must be added to achieve control. Generally, external controllers or control cabinets are used for matching. The integrated structure control unit and electric actuator are packaged as one, and can be operated locally without the need for an external control unit. Remote operation only requires outputting relevant control information.
The DY electric actuator facilitates the overall installation of the system, reduces wiring and installation costs, and is easy to diagnose and troubleshoot. It not only has the function of a switch type integrated structure, but also can control the valve to regulate the medium flow rate. When selecting, it is necessary to clarify the type and parameters of its control signal.DY electric actuatorThe working mode is generally electric open type (taking 4-20mA control as an example, electric open type refers to 4mA signal corresponding to valve closing, 20mA corresponds to valve opening), and the other type is electric closed type (taking 4-20mA control as an example, electric open type refers to 4mA signal corresponding to valve opening, 20mA corresponds to valve closing).
DY electric actuator signal loss protection refers to the process where the electric actuator opens and closes the control valve to the set protection value when the control signal is lost due to faults in the circuit. Common protection values include fully open, fully closed, and maintaining the original position, and are not easily modified after leaving the factory. DY electric actuator is an integrated device for automatic control, which is a component of automation instruments. It is mainly used to automatically operate some equipment and devices, control their switches and adjustments, and can be divided into pneumatic, hydraulic, electric, and electro-hydraulic according to the type of power; According to the form of motion, it can be divided into straight stroke, angular stroke, and rotary type.
DY electric actuator is a driving device that realizes valve program control, self-control, and remote control. Its motion process can be controlled by the magnitude of stroke, torque, or axial thrust. Torque is an important parameter for selecting electric actuators. In principle, the torque of electric actuators should be greater than or equal to the valve torque requirement.DY electric actuatorIt is a driving device that realizes valve program control, self-control, and remote control. Its motion process can be controlled by the magnitude of stroke, torque, or axial thrust. The working characteristics and utilization rate of electric actuators depend on the type of valve, the working specifications of the device, and the position of the valve on the pipeline or equipment.