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Yokogawa Electric Corporation





digitalYEWFLO Vortex Flowmeters

Yokogawa’s proprietary filter (SSP) for digital signal processing analyzes vortex signals and automatically selects the optimum settings for the best possible measurement.

Product Information

digitalYEWFLO Vortex Flowmeters

digitalYEWFLO Reduced Bore Type Vortex Flowmeter logo
The digital YEWFLO vortex flowmeter combines the field proven sensor and body assembly used in more than 400,000 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
  digitalYEWFLO Vortex Flowmeters Catalog
  digitalYEWFLO Vortex Flowmeters General Specifications
  digitalYEWFLO Vortex Flowmeters User's Manual
  digitalYEWFLO Vortex Flowmeters Drawings
  digitalYEWFLO Vortex Flowmeters Technical Information
  digitalYEWFLO Sizing Program
(Need log-in to the Partner Portal members' site.)
  digitalYEWFLO Vortex Flowmeters FOUNDATION fieldbus CFF/DD Files
  Vortex Flowmeters Application Notes
  Vortex Flowmeters Q&A (FAQ)

Features: digitalYEWFLO Vortex Flowmeter

New functions with Spectral Signal Processing (SSP) technology
  SSP analyses the fluid conditions inside the digitalYEWFLO vortex flowmeter and uses the data to automatically select the optimum adjustment for the application, providing features never seen before in a vortex flowmeter.
SSP accurately senses vortices in the low flow range, providing outstanding flow stability.
Advanced self-diagnostics
  Application conditions such as high pipeline vibration and abnormal flow are predicted and indicated.
High accuracy
  ±0.75% of reading (liquid)
±1.0% of reading (gas, steam)
Wide process temperature range
  High temperature version up to 450 deg C
Cryogenic version minimum -196 deg C
Simple parameter settings
  Frequently-used selections grouped together in a quick-access format decrease commissioning time
Clear, concise indicator
  Convenient display of the simultaneous and total flow rates together with the process diagnosis
Dual output for analog/pulse
  Simultaneous output for flow rate and pulse
Alarm output
  An alarm signal is output when an alarm occurs.
BRAIN/HART communication and key switches for human-machine interface
NACE compliant
NAMUR 43 compliant
Remote cable length up to 30m

Specifications: digitalYEWFLO Vortex Flowmeters

  Standard Type Reduced Bore Type Multi-Variable Type
Model Model DY
Vortex Flowmeter
(Integral Type,
Remote Type)
Model DYA
Vortex Flow Converter
(Remote Type)
(Option for High
Process Temperature
Version: /HT,
Option for Cryogenic Version: /LT)
Option: /R1, /R2
1 size down: /R1
2 size down: /R2
(Option for High
Process Temperature
Version: /HT)
Option: /MV
Fluid to be Measured Liquid, Gas, Steam (Avoid Multiphase Flow and Sticky Fluids)
Nominal Size Wafer 15 to 100 mm N/A 25 to 100 mm
Flange 15 to 400 mm R1: 25 to 200 mm
(Detector: 15 to 150 mm)
R2: 40 to 200 mm
(Detector: 15 to 100 mm)
25 to 200 mm
(Special: 250 to 300 mm)
Accuracy Liquid ±0.75% of Reading
(Depends on Reynolds number)
±1.0% of Reading
(Depends on Reynolds number)
±0.75% of Reading
(Depends on Reynolds number)
±1.0% of Reading
(Depends on flow velocity)
Output Signal Dual Output (Both analog and pulse output available)
Communication: HART 5/HART 7, BRAIN, FOUNDATION fieldbus
Process Temperature -29 to 250 deg C
-29 to 450 deg C (/HT)
-196 to 100 deg C (/LT)
-29 to 250 deg C
-29 to 450 deg C (/HT)
-29 to 250 deg C
-29 to 400 deg C (/HT)
Process Pressure -0.1MPa (-1kg/cm2) to flange rating
Ambient Temperature -29 to 85 deg C (Depends on model type)
Ambient Humidity 5 to 100% RH (No Condensation)
Mounting Flange or Wafer Type
JIS 10/20/40K
ANSI 150/300/600/900
(Special: 1500)
DIN PN 10/16/25/40/
Flange Type only
JIS 10/20K
ANSI 150/300
Flange or Wafer Type
JIS 10/20/40K
ANSI 150/300/600/
DIN PN 10/16/25/40
Electrical Connection JIS G1/2 Female, ANSI 1/2NPT Female, ISO M20×1.5 Female
Explosion Protected Type TIIS Ex d, FM Ex d/Ex ia, ATEX Ex d/Ex ia,
CSA Ex d/Ex ia, IECEx Ex d, SAA Ex ia
Material Body: Stainless steel(Special: Hastelloy, Carbon steel)
Shedder Bar: Duplex stainless steel(Option: Stainless steel, Hastelloy)
Gasket: Stainless steel with Teflon coating (/HT: with Silver plating)
Converter housing, case and cover: Aluminum alloy(Option: Stainless steel)

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