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Venturi Tubes from Pyrosales Allow Measurement of Non-Viscous Fluids

A Venturi Tube is a low-pressure drop, metering device. It offers constant accuracy, low susceptibility to erosion, high-pressure recovery, and installation at any angle, from horizontal to vertical.

Corrosion-resistant and virtually maintenance-free, this measurement product performs in a wide variety of applications that include air, water, vapor, steam, gas, chemical substances, sludge, and slurry applications.

The Classical Venturi Tube is made up of the following:

  • An entrance cylinder of the same diameter as the pipe connected to a conical convergent section
  • A cylindrical throat
  • A conical divergent section.

The high pressure taps are located on the inlet convergent section, and the low pressure taps are located at the middle of the throat section. A piezometer ring is sometimes used for differential pressure measurement. This consists of several holes in the plane of the tap locations. Each set of holes is connected together in an annulus ring to give an average pressure.

Pyrosales Pty Ltd provide GENERAL Venturi Tubes to serve users with an accurate measurement of non-viscous fluids in clean and dirty streams.

Venturi Tubes' feature:

  • Low installation costs
  • Low susceptibility to erosion
  • High pressure recovery
  • Low permanent pressure loss
  • Extended product life with no moving parts
  • Vertical or horizontal installation
  • Short upstream piping required

Venturi tubes are manufactured in strict accordance with ASME MFC-3M , BS-1042 and ISO-5167 standards.

These measurement standards provide users with ±1.0% uncertainty of discharge coefficient. For critical measurement applications, only wet calibration at reputed flow laboratories can be offered.


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