In fact the harder they work the better they work.
Electric actuator valve vs pneumatic.
Pneumatic vs electric actuators since their technologies are so different determining whether to choose a pneumatic or electric actuator for a process system may seem confusing.
Both involve a 3 way compromise.
Once applicable to light duty work that s now changing.
Typically electric actuators are known for their high levels of precision while pneumatic actuators are considered less expensive and easier to maintain.
The difference between pneumatic and electric actuators is that the electric motor is part of the actuator assembly rather than separate.
While the electric linear actuator provides high precision it does have large spacing.
The solenoid valve is controlled by either an ac or dc voltage.
While a pneumatic actuator is an air operated actuator which converts air pressure into mechanical force to operate the valve.
As a matter of fact pneumatic cylinders provide more force and speed per unit size than any other actuator technology except hydraulic.
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Spring return pneumatic actuators use compressed air to move the piston in one direction and a spring to push it back in the other when the air is stopped and allowed to vent.
Before specifying a pneumatic or electric actuator for valve automation it is important to consider a few of the key performance characteristics of each.
Pneumatic actuators have a 100 percent duty cycle.
An electric actuator is the one which makes use of electrical energy to produce mechanical energy.
Pneumatic actuators require an air supply of 60 to 125 psi.
The electric motor is part of the actuator instead of being separate like a pneumatic or hydraulic system.
Force and speed on pneumatic actuators are easily adjustable and are independent of each.
Pneumatic actuators use air or another gas pressure as the primary power source to produce motion which in turn controls the valve.
This requires a larger actuator since it has to overcome the force of the spring in addition to providing enough torque to operate the valve.
Tradeoffs between electric pneumatic and hydraulic actuators.
When no air supply is available electric actuators.
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The case for pneumatic actuators pneumatic actuators provide high force and speed at low unit cost in a small footprint.
Electric actuators use mechanical components like lead screws and gears to open and close their applications.
Electric actuators are most commonly available with 25 percent duty cycle.
Read on to find the basic points of difference between an electric and pneumatic actuator.
