I need an actuated valve that will close automatically if there is some kind of power failure. What are my options?
Most valve actuators are electric or pneumatic. Some electric actuators are available with a spring return, which will cause the valve to close whenever de-energized. However, most electric actuators do not work this way. For an electric actuator to close in the event of power loss, a battery back-up is required. In most cases, this option costs more than the valve and actuator combined. If compressed air is available, a pneumatic actuator is always the economical option. Most pneumatic actuators are designed to open with air pressure and spring close.
Related Questions
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