Microsoft Word Course Control valves R. doc

Requirements for occurrence of

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Control Valves Basics - Sizing & Selection
FMD3x00 98 DB Initialize (5), configuration-and-evaluation-software-pi-9045582-en-gb, configuration-and-evaluation-software-pi-9045582-en-gb, Document, colour present

Requirements for occurrence of
cavitation:
Requirements for occurrence of flashing
The fluid at both the inlet and outlet must be in all-liquid condition. The fluid at the inlet must be in all-liquid condition, but some vapor must be present

at the valve outlet. The liquid must be sub-cooled state at the inlet, because if the liquid will be in a saturated state, then any pressure drop across the valve will cause the presence of vapor downstream. The fluid at the inlet maybe in either a saturated or a sub-cooled condition. The valve outlet pressure must be either at or above the vapor pressure of the liquid. The valve outlet pressure must be either at or below the vapor pressure of the liquid.

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