Industry News
AUMA electric actuator advantages and selection elements to share
AUMA Electric actuator The basic actuator is used to drive the valve to the fully open or fully closed position. The actuator used to control the valve allows the valve to reach any position. While most actuators are used to open and close valves, current designs have gone far beyond simple open and close functions. They include position sensing devices, torque sensing devices, electrode protection devices, logic control devices, digital communication modules and PID control modules, all housed in a compact housing.
As more and more factories adopt automatic control and manual operation is replaced by mechanical or automated equipment, the actuator is required to act as an interface between the control system and the mechanical movement of the valve, and it is required to enhance its work safety and environmental performance. In some dangerous situations, automatic actuator devices can reduce personal injury.
Some special valves need to be opened or closed urgently under special circumstances, and the valve actuator can prevent the danger from further spreading to minimize the loss of the factory. For some high pressure and large diameter valves, the required actuator output torque is very large. At this time, the actuator required to improve mechanical efficiency, the use of large output motor, in order to successfully operate the large diameter valve. For some small torque valves, small electric valves are also used, which have the advantages of light weight, compact structure and complete functions compared with ordinary valves.
The main advantages of AUMA electric actuators are high stability and constant thrust, which can be applied by the user. The maximum thrust generated by the actuator can reach 225,000 KGF. Only the hydraulic actuator can achieve such a large thrust, but the cost of the hydraulic actuator is much higher than that of the electric actuator. It is powerful, reliable and easy to connect. By input current signal or voltage signal, the rotation Angle of the ball core can be changed to achieve proportional adjustment. Can be used for tube ball, simple structure, light weight, good sealing performance. Equipped with motor and hand wheel for electric and manual operation. AUMA electric actuator is suitable for 90 degree rotary valve and small and medium diameter butterfly valve, ball valve, plug valve and other similar equipment. Equipped with stroke control and torque limiting mechanism.
The AUMA electric actuator has good anti-deviation ability, and the output thrust or torque is basically constant, which can overcome the unbalanced force of the medium well and achieve the accurate control of the process parameters, so the control accuracy is higher than that of the pneumatic actuator. If the servo amplifier is used, the exchange of positive and negative effects can be easily achieved, and it is also easy to set the position state of the off signal valve (hold/fully on/fully off), but when there is a fault, it stays in place, which is not done by the pneumatic actuator, which is achieved by a combination of protection systems.