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What is closed cross-over and why is it an advantage?

April 26, 2017advantage closed cross-over

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What is closed cross-over and why is it an advantage?

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A closed cross-over valve features a stem and poppet that work in conjunction with one another ensuring that the poppet seals the exhaust port before the valve opens to flow. There is no transitional state from one function to the next providing the operator precise control between positions.