Venturi Tubes and Nozzles

The sizes of venturi tubes are a function of only the pipe size. Standard sizes for sonic venturi tubes are 25 to 200 mm (1 to 8 in.). These units can be used at 

Flow tubes are broadly defined by the American Society of Mechanical Engineers (ASME) as any d/p-producing primary whose design differs from the classic venturi design. Flow tubes fall into three main classes, depending 

Post-Oil Energy Technology After the Age of Fossil Fuels 

Venturi, Flow Tube, and Flow Nozzle Inaccuracies (Errors) in Percentage of Actual Flow for Various Ranges of Beta Ratios and Reynolds Numbers 

Flow Sensor Line Size, Inches (1 in. = 25.4 mm) Beta Ratio Pipe Reynolds Number Range for Stated Accuracy Inaccuracy, Percentage of Actual Flow 

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For venturi tubes and nozzles where the velocity in the throat is the acoustic velocity, W may be found by substitutingpc for p2 in Eq. (10.90) and employing the value of Y for pjpi = pjpi, if Y is known for the particular k value. If Y is not available for the particular k concerned, then Eq. (10.88) may be used by inserting the numerical value ofpc for p2. 

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