Glossary

FLOW ELEMENT

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Primary Flow Elements are the sensing element of Differential Pressure Flow Meters. They create a pressure drop inside the line. This pressure difference is proportional to the flow rate of the fluid.

They are divided depnding to the element that generates the pressure drop:

  • Orifice plate: a diaphragm narrows the pipeline’s diameter. Available as the orifice plate only; the orifice plate coupled with a pair of flanges with pressure taps: “Orifice Plate Assembly”; or a fully assembled pipe section: “Meter Run”.
  • Nozzle: they narrow the pipeline with a well-blended profile to allow the measurement of higher flow rates, for the same size. The profile is also more suitable for abrasive fluids such as steam.
  • Venturi: consists of a short straight tube connected at the ends to two conical tubes.
  • Conical Venturi: a cone placed inside a straight pipe.
  • Wedge: a wedge placed inside a straight pipe.
  • Pitot tubes: a tube placed inside the pipeline with the opening facing upstream. They can be made in the “Multiport Averaging” version that consists of a tube with various openings inserted perpendicular to the flow’s direction.

Discover Officine Orobiche Flow Elements: https://www.officineorobiche.it/en/categoria-prodotto/flow-elements/