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A spring-style actuator only supplies power in just one way across the working range, but a double actuator supplies power in two working ways. This differentiation may be visible in the titles of both actuators. This is because of the reason that the valve position can be adjusted for opening or closing utilizing the force applied through the spring actuator. A double-acting actuator, such as b221+lf24 us, on the other hand, uses a piston element to function that valve, necessitating pressurization on all of its sides.
Selecting the appropriate actuator for the application:
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When aiming for torque or thrust
Although some sources assert that both types of actuators are equally strong in terms of torque and thrust, reputed companies do advise carefully evaluating your needs before making a snap decision. The spring actuator’s design makes it the best choice for circumstances when only one side of the torque load is felt throughout the activation stroke. The actuators like the double-acting ones, contrarily, excel in implementations involving many oils, as well as natural gas where there are large torque loads in both of its working directions and also, high thrust strengths
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When you require security guarantees
It is usually better to use the simplest solution when it comes to safety system applications where immediate shutdowns and fail-safes are of the utmost importance. Here, it implies choosing a spring return actuator because of its straightforward design and dependability.
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When the valve malfunctions in the final position
When a valve loses its signal or supply, it must automatically fall into the last position in a number of applications. In these kinds of applications, the double-acting actuation performs well since it uses pressurization on both of its sizes to keep the valve held securely in the last position.
Final Lessons
The most crucial lesson to learn is that there is no one-stop solution for all applications, whether it be a single-return actuator or a double-acting actuator. These actuators each have a distinct design that makes them suitable for some uses, but not all. Regardless of the actuator you select, they are all generally thought to be simple to install and most are made to provide a long, dependable service. Contact a member of the Blackhawk Supply assist service team right away for further details on choosing the appropriate actuator for your unique needs.
