Yokogawa AFV10S-S31251 Duplex field control unit Excellent PLC Co.,Ltd

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Yokogawa AFV10S-S31251 Duplex field control unit

Manufacturer:Yokogawa

Product Number:AFV10S-S31251

Product Type:Duplex field control unit

Origin:Japan

Dimensions:207 × 265.9 x 482.6 mm

Weight :7.0 kg

Views:105

Payment Methods:T/T, PayPal, Western Union

Condition:New & In Stock

Shipping Port:Xiamen, China

Warranty:1 Year

Lead Time:1-3 Working Days

Certificate:COO

Courier partners:DHL, UPS, TNT, FedEx and EMS.

Business hours:7*24


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Company Information
E-mail [email protected]
Mobile +8613666033393
Whatsapp +8613666033393
WeChat 13666033393
Add Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China

Yokogawa AFV10S-S31251 Duplex field control unit

Yokogawa AFV10S-S31251 Product Introduction


The Yokogawa AFV10S-S31251 is a high-performance vortex flowmeter designed for precise and reliable flow measurement in industrial applications. It utilizes the Kármán vortex principle to measure the flow of liquids, gases, and steam with exceptional accuracy. This model is part of Yokogawa’s DY Advanced Vortex Flowmeter series, known for its durability, low maintenance, and wide applicability across various industries.

The AFV10S-S31251 is engineered to withstand harsh environments, featuring a robust construction that ensures long-term stability and resistance to vibration, temperature fluctuations, and corrosive media. Its advanced signal processing technology minimizes noise interference, providing consistent and repeatable measurements.


Product Parameters


Parameter Specification
Model AFV10S-S31251
Measurement Principle Kármán Vortex Street
Fluid Types Liquids, Gases, Steam
Pipe Size 1″ to 12″ (DN25 to DN300)
Accuracy ±1.0% of reading (liquids), ±1.5% (gases/steam)
Pressure Rating Up to 16 MPa (2320 psi)
Temperature Range -40°C to 450°C (-40°F to 842°F)
Output Signal 4-20 mA, Pulse, HART, BRAIN, FOUNDATION Fieldbus
Power Supply 10.5-42 V DC
Material Stainless Steel (Body), Hastelloy (Sensor)
Dimensions (mm) 207 × 265.9 x 482.6 mm
Weight 7 kg
Certifications CE, ATEX, IECEx, SIL 2

Product Applications


The AFV10S-S31251 is widely used in industries requiring high-precision flow measurement, including:

  • Oil & Gas: Monitoring hydrocarbon flow in pipelines and refineries.

  • Chemical & Petrochemical: Measuring corrosive and high-temperature fluids.

  • Power Generation: Steam flow measurement in boilers and turbines.

  • Water & Wastewater: Flow monitoring in treatment plants.

  • Pharmaceutical: Ensuring precise dosing in production processes.

  • Food & Beverage: Hygienic flow measurement for liquid ingredients.

Its ability to handle extreme conditions makes it ideal for applications where reliability is critical.


Product Advantages


  1. High Accuracy & Repeatability: Advanced signal processing ensures minimal measurement drift.

  2. Wide Rangeability: Suitable for low to high flow rates without sacrificing precision.

  3. Durability: Robust construction resists corrosion, vibration, and thermal stress.

  4. Low Maintenance: No moving parts reduce wear and tear.

  5. Multi-Protocol Support: Compatible with HART, BRAIN, and Fieldbus for seamless integration.

  6. Versatility: Measures liquids, gases, and steam with a single device.

  7. Safety Compliance: Certified for hazardous areas (ATEX, IECEx).

  8. Easy Installation: Compact design simplifies retrofitting in existing systems.


Frequently Asked Questions (FAQ)


  1. What fluids can the AFV10S-S31251 measure?
    It measures liquids, gases, and steam, including corrosive and high-temperature media.

  2. What is the operating temperature range?
    -40°C to 450°C (-40°F to 842°F).

  3. Does it require regular calibration?
    No, its stable design ensures long-term accuracy with minimal recalibration.

  4. Is it suitable for hazardous environments?
    Yes, it holds ATEX and IECEx certifications for explosive atmospheres.

  5. What output signals are supported?
    4-20 mA, Pulse, HART, BRAIN, and FOUNDATION Fieldbus.

  6. Can it be installed vertically or horizontally?
    Yes, but ensure the pipe is always fully filled for liquids.

  7. How does it handle pipe vibrations?
    Advanced damping algorithms filter out vibration noise.

  8. What maintenance is required?
    Periodic inspection of the sensor and electronics is recommended.

  9. Is the sensor material corrosion-resistant?
    Yes, Hastelloy sensor resists corrosion in aggressive media.

  10. What is the warranty period?
    Typically 1 years, depending on the supplier.


Recommended Related & Popular Models


Same Series Models

Model Description Key Feature
AFV10S-S31252 Higher pressure variant (25 MPa) For ultra-high-pressure steam
AFV10S-S31250 Basic model without Fieldbus support Cost-effective solution
AFV20S-S31251 Larger pipe size (DN400) For high-flow applications
AFV10S-S31253 Explosion-proof version (SIL 3) Enhanced safety compliance
AFV10S-S31254 Sanitary design (FDA-compliant) Food & pharmaceutical use
AFV10S-S31255 Low-flow optimization For minimal flow rates

Popular Yokogawa Models

Model Type Application
EJA110E Differential Pressure Transmitter Level/flow measurement
AXF Series Magnetic Flowmeter Conductive liquids
UTAdvanced Ultrasonic Flowmeter Non-invasive measurement
YTA Series Temperature Transmitter High-accuracy thermal monitoring
ROTAMASS Coriolis Flowmeter Mass flow measurement
DPharp Series Pressure Transmitter Precision pressure sensing

Frequently Asked Questions (FAQ)


  1. What fluids can the AFV10S-S31251 measure?
    It measures liquids, gases, and steam, including corrosive and high-temperature media.

  2. What is the operating temperature range?
    -40°C to 450°C (-40°F to 842°F).

  3. Does it require regular calibration?
    No, its stable design ensures long-term accuracy with minimal recalibration.

  4. Is it suitable for hazardous environments?
    Yes, it holds ATEX and IECEx certifications for explosive atmospheres.

  5. What output signals are supported?
    4-20 mA, Pulse, HART, BRAIN, and FOUNDATION Fieldbus.

  6. Can it be installed vertically or horizontally?
    Yes, but ensure the pipe is always fully filled for liquids.

  7. How does it handle pipe vibrations?
    Advanced damping algorithms filter out vibration noise.

  8. What maintenance is required?
    Periodic inspection of the sensor and electronics is recommended.

  9. Is the sensor material corrosion-resistant?
    Yes, Hastelloy sensor resists corrosion in aggressive media.

  10. What is the warranty period?
    Typically 1 years, depending on the supplier.

Recommended Related & Popular Models


Same Series Models

Model Description Key Feature
AFV10S-S31252 Higher pressure variant (25 MPa) For ultra-high-pressure steam
AFV10S-S31250 Basic model without Fieldbus support Cost-effective solution
AFV20S-S31251 Larger pipe size (DN400) For high-flow applications
AFV10S-S31253 Explosion-proof version (SIL 3) Enhanced safety compliance
AFV10S-S31254 Sanitary design (FDA-compliant) Food & pharmaceutical use
AFV10S-S31255 Low-flow optimization For minimal flow rates

Popular Yokogawa Models

Model Type Application
EJA110E Differential Pressure Transmitter Level/flow measurement
AXF Series Magnetic Flowmeter Conductive liquids
UTAdvanced Ultrasonic Flowmeter Non-invasive measurement
YTA Series Temperature Transmitter High-accuracy thermal monitoring
ROTAMASS Coriolis Flowmeter Mass flow measurement
DPharp Series Pressure Transmitter Precision pressure sensing

Yokogawa AFV10S-S31251 Duplex field control unit

Company Information
E-mail [email protected]
Mobile +8613666033393
Whatsapp +8613666033393
WeChat 13666033393
Add Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China

Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.

As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.

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