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Items Tagged with 'control valve'

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Consider the control valve

Loops everywhere you look, if you look hard enough
Bob Donnelly
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A process plant is a kind of control-loop network, with multitudes of automated, semi-automated and manual control loops embedded within it. Other loops are mostly interpersonal or may be the product of one person’s thought processes, perhaps expressed by means of a spreadsheet.
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Going wireless can streamline position monitoring in explosive environments

Switches operate at extremely low voltage and current; feature an electro-dynamic energy generator
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Monitoring a control valve’s position in process industries is typically done using conventional cabled position switches meant for normal manufacturing environments. While these devices address the functional requirements for sensing “open/closed” valve positions, inherent design characteristics may limit their life expectancy or make them unsuitable for use in potentially explosive gas/dust environments.
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Ask the Valve Expert: Fruit juice processing application

Bob Donnelly
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What type of valve is suitable to maintain liquid level in a 7,000 gallon tank?
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