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Choosing which actuator is best is a bit like Internet dating

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Deciding whether to use a pneumatic or electric valve actuator is a bit like finding a long-term partner. You need to take your time to carefully pick what will work out after the honeymoon phase is a distant memory. If you don’t, you could encounter some major bumps in the road ahead which could cost you time and thousands of dollars.

Sadly the choice isn’t always an obvious one. Making the right decision involves an evaluation of performance, component costs, system costs, and productivity gains as well as a good understanding of the advantages and disadvantages of each type of actuator. Continue reading

When failure is NOT an option, fail-safe actuators are a must

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Wouldn’t it be great if when things went wrong, you and I could immediately revert to a safe position and start again, no harm done. Dreaming aside, in the wonderful world of engineering this is a reality in the form of fail-safe devices, a tool that in the event of failure responds in a way that will cause no harm, or at least a minimum of harm, to other devices or people.

Fail-safe actuators are devices that return to a home position if the electrical power or pneumatic pressure supplied to the actuator is lost. Continue reading