The Micro Motion ELITE CMF400P (DN100-DN150) is engineered for large-scale applications where pressure and chemical aggression coexist. Combining the extreme corrosion resistance of Nickel Alloy C22 sensor tubes with the robust mechanical integrity of 316L Stainless Steel fittings, the CMF400P is designed to operate safely at pressures up to 2,973 psig (205 barg).
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| Feature | Performance Data |
| Nominal Line Size | 4 to 6 Inch (DN100 - DN150) |
| Wetted Material | Nickel Alloy C22 (Tubes) + 316L Stainless Steel (Fittings) |
| Max. Working Pressure | 2,973 psig (205 barg) (Up to 6,000 psig available) |
| Mass Flow Accuracy (Liq) | Standard: ±0.10% |
| Density Accuracy (Liq) | Standard: ±0.0005 $g/cm^3$ |
| Process Temp. Range | -400°F to 662°F (-240°C to 350°C) |
| Safety Options | Rupture Disk or Purge Fitting Case Available |
| Approvals | CSA, ATEX, IECEx, NEPSI, SIL2/3, Marine |
High-Pressure Engineering: Rated for 2,973 psig (205 barg) as standard, with options extending to 6,000 psig (414 barg), making it the definitive choice for high-pressure gas injection and carbon capture (CCS) projects.
Material Hybrid Optimization: Features C22 Nickel Alloy for the internal flow path to prevent pitting and stress corrosion, while using 316L Stainless Steel for external fittings to provide high-strength connectivity and cost-efficiency.
Smart Meter Verification (SMV): Critical for high-pressure systems where dismantling the line is dangerous and expensive. SMV verifies the meter’s health in-process, ensuring safety and compliance without downtime.
Ultimate Immunity: The ELITE architecture provides the highest immunity to environmental vibrations and process noise, maintaining ±0.05% accuracy even in turbulent large-bore flow conditions.
Enhanced Case Safety: Available with a rupture disk or purge fitting case, providing an additional layer of protection for personnel and assets in the event of primary sensor tube failure.
Cryogenic to High-Heat Versatility: From -240°C to 350°C, the CMF400P maintains precision, making it suitable for both liquid hydrogen/LNG applications and high-temperature heavy oil transfer.
Multivariable Digital Power: One sensor replaces multiple transmitters by providing real-time mass flow, volume flow, density, and temperature data.
Advanced Transmitter Support: Pairs perfectly with the Emerson 5700 transmitter for local historian logging and graphical diagnostic tools.
Seamless Fieldbus Support: Native integration for HART, Modbus, PROFINET, and EtherNet/IP ensures your high-pressure data reaches your control system without latency.
The Challenge: A carbon sequestration project required a 4-inch meter to measure supercritical CO2 at 180 barg. The meter needed to handle the high pressure while resisting potential carbonic acid corrosion.
The Hanyu Solution: The project integrated the Micro Motion CMF400P from
The Result: The C22 tubes provided excellent corrosion resistance, while the P-series high-pressure rating easily handled the 180 barg process pressure.
The Impact: The facility achieved ±0.05% mass flow accuracy, meeting regulatory standards for carbon credits and ensuring long-term sensor reliability without pressure-related drift.
Q: What is the main difference between CMF400H and CMF400P?
A: The CMF400H is the standard ELITE Nickel Alloy model. The CMF400P is the High-Pressure version, offering higher maximum working pressure ratings (up to 205 barg vs 197 barg standard) and specialized high-pressure case options.
Q: Can it be used for Custody Transfer?
A: Yes. The CMF400P carries extensive 3rd-party custody transfer approvals and is widely used for high-accuracy bulk fiscal measurement of high-pressure gases and liquids.
Q: Is the rupture disk necessary?
A: For high-pressure gas applications or hazardous chemical service, a rupture disk is highly recommended as a safety feature to vent pressure safely away from the transmitter housing in case of a tube leak.
