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12.13 - Compressed Air Throughput of the Oriface Against the Atmosphere


Diagram 7.2.4.4

The efficiency quotient of the orifice is less than 1 and not taken into account by the diagram. This causes the quantity of air flowing out to be smaller than the amount obtained on the basis of theory. In practice, a factor derived from the proportion between loading time and pressure build-up time is taken into account when designing the orifice.