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Orifice Air Discharge vs. Pressure

Nozzles discharging air volume.

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The diagram below indicates the air leakage or air volume passing through orifices ranging size 1/64 - 1/4 inches. For well rounded nozzles multiply the vlues in the diagram with 0.97. For sharp edged nozzles multiply the values with 0.65.

1 psig = 6.9 kPa = 0.069 bar
1 inch = 25.4 mm
1 scfm = 0.472 nl/s

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Related Topics

Gases and Compressed Air - Air, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves.

Related Documents

Fluid Flowmeters - Comparing Types - An introduction to the different types of fluid flowmeters - Orifices, Venturies, Nozzles, Rotameters, Pitot Tubes, Calorimetrics, Turbine, Vortex, Electromagnetic, Doppler, Ultrasonic, Thermal, Coriolis.
Orifice, Nozzle and Venturi Flow Rate Meters - The orifice, nozzle and venturi flow rate meters makes the use of the Bernoulli Equation to calculate fluid flow rate using pressure difference through obstructions in the flow.
Orifices - Natural Gas Capacity - Capacity of natural gas orifices.
Steam Flow - Orifices - Steam flow through orifices - for steam pressures ranging 2 - 300 psi
Steam Leaks through Orifices - Steam leaks through orifices for pressures ranging 250 - 600 psi

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