WIKA

Venturi Tubes

A Venturi tube is a reliable and easily-managed and maintained instrument that can measure a wide range of clean liquids and gases.The main advantage of a Venturi tube over other differential pressure flow measuring instruments is the higher pressure recovery and the lower upstream and downstream straight pipe length requirements.  The instrument consists of a gradually decreasing nozzle, through which the…

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A Venturi tube is a reliable and easily-managed and maintained instrument that can measure a wide range of clean liquids and gases.

The main advantage of a Venturi tube over other differential pressure flow measuring instruments is the higher pressure recovery and the lower upstream and downstream straight pipe length requirements.  

The instrument consists of a gradually decreasing nozzle, through which the medium in a pipe is accelerated, followed by a gradually increasing diffuser section. The diffuser section allows the fluid to nearly regain its original pressure. Due to the fact that a major part of the output pressure is regained, the Venturi tube is particularly suited for the measurement of flow rates in systems with a low pressure differential. Thanks to the low pressure loss the cost of pumping the medium can be reduced to a minimum.

Datasheet WIKA Venturi tubes DS_FL1004_GB_50036.pdf

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