Automated valves can be classified based on there actuation method. There are many ways to actuate a valve however generally used methods are listed below.
In case of electrically actuated valves, electric motors are used. Here availability of electricity at the site becomes major deciding factor.
Positioners are used to give command to control the valve for opening, closing or to maintain any intermediate position.
Capacity of the actuator is totally depends on two parameters
In case of rotary actuation this force is called as torque and in case of linear actuation same is called as thrust.
typically Automated valve comprises of Actuator, Valve, Mounting arrangement, power transmission element and an option to manually override the actuator operation.
Valves which are operated without any manual efforts are automated valves. Automated valves can be actuated with the help of Pneumatics, hydraulics, electrically or with a combination of these.
Actuator is a device that transforms or converts energy into motion.
Also applied as a force, an actuator usually is a mechanical apparatus that takes energy, normally constructed by air, electricity, or liquid and converts that into a specific kind of motion.
Actuators are a type of tool which is used to put something into automatic action.
Automation is the techniques and equipment used to achieve automatic operation or control.
Automation is an automatic operation and control of machinery or processes by devices, such as robots that can make and execute decisions without human intervention.
Automation is the great idea of industries. After introducing Automation the quality of the product is increased. The controlling logic and process methodology where has been taken care by automation systems.