A flowmeter is a measuring instrument that measures the amount of liquid, gas, steam, powder, or a mixture of these substances flowing through a pipe or ditch. Various measurement methods are available depending on the purpose of measurement, the type and condition of the fluid, and the measurement conditions such as the measurement location. We offer Coriolis, electromagnetic, vortex, and variable area flowmeters.
Flowmeter Product Family
We have a wide lineup of flowmeter products with various measurement methods. You can select the best flowmeter for your flow measurement purpose (volume flow / mass flow / temperature / density), fluid type (liquid / gas / steam), and fluid condition (temperature / pressure / corrosive / slurry / viscosity).
Coriolis Mass Flow and Density Meters
Magnetic Flowmeters
Vortex Flowmeters
Variable Area Flowmeters
Coriolis Flow Meters
The Rotamass Total Insight (TI) series adopts the Total Insight concept and totally support the product life cycle.
Rotamass TI is the Yokogawa Coriolis mass flowmeter providing very high accuracy for measuring liquids and gases.
From the direct mass flow, density, temperature measurements, with Rotamass TI you can calculate:
Volume flow at operating or reference conditions
Density at reference conditions
Concentration measurements of mixable or unmixable fluids
With additional measurement input Rotamass TI can calculate fluid viscosity for Newtonian liquids or energy-heating value for gas measurement.
Coriolis Flow Meters
ROTAMASS Nano
When Every Drop Counts
The world’s smallest dual bent tube Coriolis Mass Flow and Density Meters series for highly accurate measurement at lowest flows.
The dual tube design compensates for fluctuations of density, temperature, pressure and environment conditions. This provides a consistent repeatable and accurate measurement especially for small size Coriolis Mass Flow and Density Meters.
Typical Applications
Flow Range
Pressure Rating
Process Temperature
Wetted Parts Material
ROTAMASS Prime
Versatile in Applications
The versatile Coriolis Mass Flow and Density Meters with superior turndown and lowest pressure drop in the market. Ideal for a broad range of standard applications, this series is a flexible and cost effective solution for highly accurate flow and density measurements. Features such as concentration measurement or the Tube Health Check function allow the meter to be adjusted to customer needs.
Typical Applications
Flow Range
Pressure Rating
Process Temperature
Wetted Parts Material
ROTAMASS Hygienic
With Pure Dedication
Specifically designed and certified for food & beverage, biotechnology and pharmaceutical utility applications. (EHEDG certified, 3-A certified)
This series is the appropriate answer to the daily constraints of hygienic processes ensuring continuous product quality and minimizing losses. This is made easy by the provided multi-variable measurement and various dedicated features.
Typical Applications
Flow Range
Pressure Rating
Process Temperature
Wetted Parts Material
ROTAMASS Supreme
Experience Meets Innovation
The Coriolis Mass Flow and Density Meters with superior performance under demanding conditions.
The successful Rotamass series has been progressively developed and is also newly equipped with the latest technology. This meter delivers unsurpassed performance for demanding and critical applications with superior aeration handling and advanced diagnostic functionality.
Typical Applications
Flow Range
Pressure Rating
Process Temperature
Wetted Parts Material
ROTAMASS Intense
Safe Under High Pressure
The Coriolis Mass Flow and Density Meters with the most robust and durable design for precise measurement in high pressure applications.
Safety is always a concern and especially when operating at high pressures. Therefore, this series has been designed to meet the highest safety requirements. Combined with advanced diagnosis such as the Total Health Check function, operation is always under secure control.
Typical Applications
Flow Range
Pressure Rating
Process Temperature
Wetted Parts Material
ROTAMASS Giga
Big in Performance
Delivering best in class accuracy and most flexible installation at high flow rates.
The unmatched accuracy at the low end of the measuring range offers maximum flexibility from engineering to final operation. This series unifies a long service life with low maintenance costs and reliable performance.
Typical Applications
Flow Range
Pressure Rating
Process Temperature
Wetted Parts Material
Essential Transmitter
Multilingual wizard for easy setup and guidance through the main configuration
Event Management as unique and useful support to run the process effectively and safely
Data mobility provided by microSD card for easy transfer to other devices for fast setup or to pc for in-depth process analysis or remote service
Widest range of I/O combinations in the market for most flexible adjustment to the existing system periphery
Universal power supply to install the device anywhere in the world
Hart, Modbus communiction
NAMUR NE95 compliance, SIL 2 and SIL 3 compliance
Ultimate Transmitter
Patented Tube Integrity function and Total Health Check for inline meter verification without disturbing running measurements
Features on demand for easy expansion of special functions via software activation key
Batching function and Viscosity function
Dynamic Pressure Compensation for consistently accurate and stable measurement even with significant fluctuations in operating pressures
Inline concentration measurement
Integrated net oil computing acc. API standard
Hart, Modbus, Foundation Fieldbus, Profibus PA communication
Magnetic Flowmeters
History of YOKOGAWA’s Magnetic Flowmeters
YOKOGAWA’s magnetic flowmeter is supported by a long history of more than half a century. We added innovative specifications in each era, and have always lead the industry. The consistent policy of YOKOGAWA’s magnetic flowmeter is to have high performance and high quality.
The world’s first dual frequency excitation method adopted in the ADMAG AM series announced in 1988 pushed the stability measurement of the magnetic flowmeter to a higher standard. Capacitance type magnetic flowmeter ADMAG CA series has made it possible to measure low conductivity fluid and insulating adhesive fluid. ADMAG AXR series realized overwhelming high performance with limited power supply voltage of two-wires.
And now, it is the birth of ADMAG TI series to adopt the “Total Insight” concept and totally support the product life cycle.
ADMAG AXG Magnetic Flowmeters
The ADMAG Total Insight(TI) series ADMAG AXG adopts the “Total Insight” concept and totally support the product life cycle.
ADMAG AXG magnetic flowmeter is a high-quality and highly reliable product developed based on years of experience and achievement, such as enhancement of application by our proprietary dual frequency excitation method.
Certified to SIL2 complied with functional safety standard IEC 61508, and can be used in safety instrumented systems up to SIL2 in simplex configuration and SIL3 in redundant configuration.
ADMAG AXG is ideal for industrial process lines like oil & gas / chemical / pulp & paper / food & beverage / metal & mining applications.
With outstanding reliability and ease of operation and maintenance, developed on decades of field-proven experience, ADMAG AXG will increase your benefits while reducing total cost of ownership.
ADMAG AXW Magnetic Flowmeters
The ADMAG Total Insight (TI) series ADMAG AXW adopts the “Total Insight” concept and totally support the product life cycle.
ADMAG AXW magnetic flowmeter is a high-quality and highly reliable product developed based on years of experience and achievement, such as enhancement of application by our proprietary dual frequency excitation method.
Certified to SIL2 complied with functional safety standard IEC 61508, and can be used in safety instrumented systems up to SIL2 in simplex configuration and SIL3 in redundant configuration.
ADMAG AXW is ideal for general industrial process lines and water supply/sewage applications.
With outstanding reliability and ease of operation and maintenance, developed on decades of field-proven experience, ADMAG AXW will increase your benefits while reducing total cost of ownership.
Magnetic Flowmeter CA Series
The magnetic flowmeters CA Series can measure fluids that are difficult to measure with other magnetic flowmeters. For example, high-concentration slurry fluids, insulator-adhesive fluids, and ultra-low-conductivity fluids.
In addition, the CA Series is designed with the Total Insight concept. The display has excellent visibility due to its dot matrix and backlight. Also, if you use the verification function, you can diagnose the equipment and easily check the status of the equipment.
Vortex Flowmeters
History of YOKOGAWA’s Vortex Flowmeter
Yokogawa launched the world’s first vortex flowmeter in 1968.
The long-term stability and high accuracy that are the characteristics of Yokogawa Vortex flowmeters continue to contribute to improving customer productivity.
Vortex Flowmeters VY series
Yokogawa’s Vortex Flowmeters VY Series is developed with two key technologies, the digital technology and inherited unique structure from YEWFLO series.
Digital technology is utilized to enable remote maintenance and self-diagnosis, to easily check the health of your equipment at any time. The unique structure provides robustness and long-term stable measurement.
VY series supports various standards such as SIL2, local Ex proof.
It has various calculation functions such as temperature pressure compensation and energy calculation.
VY series contributes to the efficient and planned operation of the customer plant.
digitalYEWFLO Vortex Flowmeter
The digital YEWFLO vortex flowmeter combines the field proven sensor and body assembly used in more than 450,000 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.
Rotameter – Variable Area Flowmeter
The Variable Area Flowmeter is one of the oldest and mature principles in flow measurement with its simple design: a float rises inside a conically shaped glass tube as the flow increases and its position on a scale can be read off as the flow rate. Since this measuring method is purely mechanic, it as simple as it is reliable.
RAGN Rotameter
The RAGN Rotameter is designed for continuous flow measurement of liquids and gases. The borosilicate glass metering tube has a brightly colored easy to read scale. The RAGN comes standard with in-line 316 stainless steel fittings and optional stainless steel, titanium, PTFE or PVDF internals. Connection fittings for the RAGN can be chosen from NPT thread or Flanged connections.
The fluid passes through the metering tube from bottom to top so vertical installation is required. The actual flow is indicated by the top of the float and can be directly read from the scale on the metering tube.
RAMC Variable Area Flow Meter
At first glance, the instrument looks impressive with its all stainless steel design. A closer look reveals a “float blockage” detection system. Operational safety is of the utmost importance in any flowmeter, and the RAMC is no exception – wetted parts are available in a variety of materials, and intrinsically safe outputs are available as an option.
If you value flexibility in a flowmeter – from the measurement of air to highly aggressive liquids – in situ replacement of the indicator without loss of performance – and the interchangeability of floats – then the RAMC is the right choice for you.
The RAMC combines all the advantages of the variable area principle with robust design, reliable measurement, with or without power, HART, culminating in a truly universal flowmeter for gases, liquids and steam applications.