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Flow

Digital YEWFLOW Multivariable

The world's first two-wire Multi-variable Type (with built-in temperature sensor) can directly output the mass flow rate of saturated steam.

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The world's first two-wire Multi-variable Type (with built-in temperature sensor) can directly output the mass flow rate of saturated steam.
The digitalYEWFLO vortex flowmeter combines the field proven sensor and body assembly used in more than 260,000 units installed worldwide with a unique and powerful combination of digital technology that includes spectral signal processing (SSP), a Yokogawa innovation. The digitalYEWFLO vortex flowmeter is accurate and stable, even in harsh process conditions, and has a highly reliable and robust design that delivers improvements in plant efficiency and reduced operating costs.

Multivariable Type: option code /MV

  • Resistance temperature sensor built into vortex shedder bar
  • User selectable Flow, Temp, Total and other displays
  • Mass flowrate calculated using temperature readings and steam table data
  • Able on its own to output mass flowrate

Saturated Steam Measurement Mechanism

A steam table provides data on the temperature, pressure and density of steam and is provided by a certification body such as the ASME. The saturated steam curve shows the steam saturation point for each pressure/temperature level. The digitalYEWFLO converter calculates the mass flowrate using the density figure from the steam table. With its Spectral Signal Processing system, the digitalYEWFLO is able to accurately measure fluctuations in temperature.

With superheated steam, density is calculated as a fixed pressure value that includes the superheated temperature value.

With the totalization function, energy consumption data collected over a period of time can be stored in memory and used to devise measures for reducing energy consumption.

Industries Served

From application engineering, valve configuration, to performance testing, supply chain management and aftermarket support, we cover any specific industrial needs.