In the rapidly expanding Hydrogen Fuel Cell Vehicle (FCEV) market and ultra-high pressure industrial sectors, measurement integrity under extreme stress is non-negotiable. The Micro Motion HPC020N (1/6 Inch / DN3) is specifically engineered to bridge the gap between extreme pressure and fiscal-grade precision. With a maximum operating pressure of 16,401 psi (1131 Bar), it is the primary choice for global 700 bar hydrogen dispensing (H70) and high-pressure chemical injection systems.
Standard stainless steel is vulnerable to hydrogen atoms penetrating its crystal lattice, leading to "hydrogen embrittlement" and catastrophic failure at high pressures. The HPC020N utilizes a wetted pathway made of XM-19 (Nitronic 50) stainless steel. This high-performance alloy provides significantly higher yield strength and localized corrosion resistance compared to 316L, making it the essential core for LDV, MDV, and HDV hydrogen refueling stations.
Maintenance in high-pressure environments is both dangerous and costly. The HPC020N has no moving parts to wear or replace. Furthermore, its integrated Smart Meter Verification (SMV) technology allows operators to perform an internal diagnostic and audit the sensor’s health in under 90 seconds. This ensures total system integrity without ever pulling the meter out of service or venting the high-pressure line.
| Feature | Performance Specification |
| Nominal Line Size | 1/6 Inch (DN3) |
| Max Operating Pressure | 16,401 psi (1131 Bar) |
| Nominal Flow Rate | 7.7 kg/min |
| Gas Mass Flow Accuracy | ±0.5% of batch |
| Gas Repeatability | 0.25% of batch |
| Wetted Materials | 316L & XM-19 (Hydrogen Resistant) |
| Application Standards | 350 bar and 700 bar (H35/H70) |
| Safety Compliance | SIL 2 Standard / SIL 3 Capable |
The HPC020N solves the critical challenge of transient flow stability during rapid 700 bar refueling. By measuring mass flow, volume flow, density, and temperature simultaneously, it eliminates the need for secondary compensation devices. Whether installed in a hydrogen dispenser, a high-pressure chemical dosing skid, or a hydraulic test bench, the HPC020N provides the best real-world Coriolis performance at extreme pressures.
Q: Can the HPC020N handle the rapid pressure ramps of 700 bar refueling?
A: Yes. It is specifically designed to handle the thermal and pressure stresses associated with fast-fill hydrogen protocols, providing stable ±0.5% accuracy throughout the batch.
Q: Is a transmitter required for operation?
A: The HPC020N is highly flexible. It can be ordered as a "Direct Connect" device for integration with third-party PLC systems, or paired with Micro Motion 5700 and stainless steel transmitters for full multivariable output.
Q: How does XM-19 steel benefit my installation?
A: XM-19 provides nearly double the yield strength of 316L stainless steel and superior resistance to hydrogen-induced cracking, ensuring a much longer service life in hydrogen gas applications.
