Natural Gas Wellhead Shuto?s Application Natural Gas Wellhead Shuto?s Challenge An automation and controls integrator was redesigning a shuto? control system for a remote natural gas well head site. The company had been using a pilot- operated valve and smaller direct-acting, low-power valve for the application. The new design required a solenoid shuto? valve that could operate on a solar panel with limited sunlight. It also had to have high-?ow capability and work with contamination in the gas line. Results Emerson, through its ASCO™ brand, developed a solution that replaced the integrator's pilot and direct-acting valves with a single ASCO 362 Series low- power, high-?ow spool valve. The valve's 0.55-watt power requirement was signi?cantly lower than the old solution's 1.8-watt ra

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