Flow Nozzle

About Flow Nozzle

The form of a flow nozzle is not prone to solid particles or bubbles of gas in a flowing fluid sticking in the flow restriction, and so in this respect it is superior to the orifice plate. Its useful working life is also greater because it does not get worn away in the same way as an orifice plate. These factors give the instrument a greater measurement accuracy. However, as the engineering effort involved in fabricating a flow nozzle is greater than that required to make an orifice plate, the instrument is somewhat more expensive. In terms of the permanent pressure loss imposed on the measured system, the flow nozzle is very similar to the orifice plate. A typical application of the flow nozzle is in measurement of steam flow.

More Flow Measurements

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