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For many oil & gas producing sites, the traditional way to power valve actuators has been from the natural gas pressure from the well. The issue with this approach is the venting of methane into the atmosphere. In an Oilfield Technology article, Switching on to Electric Control Valves’ Potential (pp. 54-59), Emerson’s Scott Losing and Andrew Prusha describe how electric valve actuators have advanced to replace pneumatic actuators driven by natural gas.
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