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Control Valve Failure Mode (Fail Lock | | Fail last DC | Fail Last DO | FC | FO Modes included)

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What is Fail Open control valve ?
Fail Open control valve is a control valve that has have Air to Open Actuator and valve body design and Flow under the valve to assist failure mode in Globe style spring actuated control valve.
What is Fail Close control valve ?
Fail Close control valve is a control valve that has have Air to Close Actuator and valve body design and Flow under the valve to assist failure mode in Globe style spring actuated control valve.
What is Fail Indeterminate valve ?
Fail Indeterminate valve is where the Control valve may fail (i.e during loss of air supply) in various positions—open, closed, or in between state i.e termed as fail indeterminate state.
What is Fail Last valve ?
A fail last valve is where the valve stays in its last stage after there was loss of air supply and then eventually (called drift open or drift close) due the forces of fluid it goes in open or close state.
1500+ Engineers have taken the Course
(Engineers have said it is even BETTER than the PAID Courses available)
Give it a Try 😊
What is Fail Open control valve ?
Fail Open control valve is a control valve that has have Air to Open Actuator and valve body design and Flow under the valve to assist failure mode in Globe style spring actuated control valve.
What is Fail Close control valve ?
Fail Close control valve is a control valve that has have Air to Close Actuator and valve body design and Flow under the valve to assist failure mode in Globe style spring actuated control valve.
What is Fail Indeterminate valve ?
Fail Indeterminate valve is where the Control valve may fail (i.e during loss of air supply) in various positions—open, closed, or in between state i.e termed as fail indeterminate state.
What is Fail Last valve ?
A fail last valve is where the valve stays in its last stage after there was loss of air supply and then eventually (called drift open or drift close) due the forces of fluid it goes in open or close state.
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