The Micro Motion F025B (DN6) is a 1/4-inch Coriolis meter engineered for the most demanding process conditions. Constructed with Nickel Alloy C22 (Hastelloy equivalent) wetted parts, it is designed to maintain measurement integrity in the presence of aggressive acids and chlorides. As a High Temperature model, the F025B ensures stable and repeatable performance even as process temperatures fluctuate.
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| Feature | Performance Data |
| Nominal Line Size | 1/4 Inch (DN6) |
| Wetted Material | Nickel Alloy C22 (Extreme Corrosion Resistance) |
| Design Feature | High Temperature & Fully Drainable |
| Liquid Mass Flow Accuracy | Standard: ±0.20% |
| Liquid Density Accuracy | Standard: ±0.002 $g/cm^3$ |
| Max. Working Pressure | 2,160 psig (149 barg) |
| Process Temperature | -400°F to 662°F (-240°C to 350°C) |
| Safety Ratings | SIL2 / SIL3, ATEX, IECEx, NEPSI, CSA, UL |
Extreme Chemical Compatibility: The C22 Nickel Alloy construction provides a superior barrier against pitting and stress corrosion cracking in environments where 316L stainless steel would fail.
Thermal Stress Resilience: Specifically designed to handle high-temperature cycles (up to 350°C), the F025B maintains a stable zero point, ensuring accuracy in hot oil or heated catalyst applications.
Compact, Drainable Design: Its unique S-series geometry allows for complete gravity drainage, which is critical for preventing cross-contamination in batch dosing and minimizing the waste of expensive chemicals.
Smart Meter Verification (SMV): High-temperature and corrosive lines are hazardous to inspect. SMV allows you to verify sensor health and tube integrity in-line, in under 90 seconds, without stopping the process.
Fast Batching Response: Powered by Micro Motion’s MVD™ technology, the F025B delivers the high-speed signal processing required for precision filling and micro-batching.
Advanced Transmitters: Pair with the Emerson 5700 for advanced diagnostics or the 2400 for compact DIN-rail mounting.
Digital Support: Native support for HART, Modbus, PROFINET, and EtherNet/IP.
Global Safety Compliance: Fully certified for hazardous areas (Class 1 Div 1, ATEX Zone 0/1), making it safe for use in refineries and pharmaceutical plants worldwide.
The Challenge: A research facility needed to dose concentrated acids at 200°C and 100 bar into a micro-reactor. Standard meters were leaking due to thermal fatigue and material degradation.
The Hanyu Solution: The facility implemented the Micro Motion F025B from
The Result: The Nickel Alloy C22 tubes handled the thermal stress and acidity without any signs of fatigue. The meter provided a stable ±0.10% mass flow accuracy.
The Impact: The facility reduced unplanned maintenance shutdowns by 90% and achieved higher experimental reproducibility due to the stable micro-flow measurement.
Q: When should I choose Nickel Alloy C22 (B) over Stainless Steel (S)?
A: Choose the F025B if your process fluid is corrosive to stainless steel (e.g., containing chlorides, sulfuric acid) or if you are operating at high temperatures where C22 offers better mechanical stability.
Q: Can the F025B handle high-pressure gas dosing?
A: Yes. It is rated for 149 bar and provides gas mass flow measurement with a stable accuracy of ±0.50%.
Q: Is the F025B suitable for custody transfer?
A: Yes. It carries multiple global legal metrology approvals (MID, NTEP, Measurement Canada), making it suitable for high-value chemical billing.
Q4: How does Hanyu Zhilian support the delivery of these specialized sensors?
A: We provide 100% original factory units with full Material Traceability Reports (MTRs) and original calibration certificates. All project data is confidential per our Privacy Policy.
