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| Suppose the pilot pressure range is from 3 to 15 psig for the illustrated pneumatically-operated diaphragm-actuated control valve. Assuming the control valve is trimmed for a linear response and the travel position indicator is calibrated in percentage, what would the approximate valve position with a 9 psig pilot pressure? GS-0051 |
| A) 25% open |
| B) 33% open |
| C) 50% open |
| D) 75% open |
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Illustration GS-0051
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