E+H FLOWSIC900 Custody Transfer Ultrasonic LNG Meter

Premium Custody Transfer Solutions for LNG Infrastructure

In the modern Liquefied Natural Gas (LNG) market, accurate volume measurement during custody transfer is critical for protecting profit margins, reducing boil-off gas (BOG) losses, and mitigating operational risks. The Endress+Hauser FLOWSIC900 Custody Transfer Ultrasonic LNG Meter provides class-leading flow measurement reliability specifically engineered for the unique challenges of cryogenic liquid natural gas systems. Leveraging proven ultrasonic transit-time difference technology, the FLOWSIC900 delivers superior custody transfer accuracy, minimal maintenance requirements, and full operational transparency across global LNG supply chains.

Ultra-High Accuracy for Cryogenic Custody Transfer

Custody transfer points in LNG liquefaction plants, receiving terminals, and transport ships demand exceptional metrological precision. The FLOWSIC900 meets stringent international metrological standards, including OIML R117 Class 0.3. With a measurement repeatability of ≤ ±0.05% and typical calibrated error limits within ±0.2%, the meter dramatically minimizes volume uncertainty during high-value LNG transactions.

By measuring volumetric flow, sound velocity, and liquid flow speed in real time, the FLOWSIC900 ensures complete process insight under dynamic loading and unloading conditions. Its optimized signal path maintains uncompromised performance even under low-temperature cryogenic conditions down to -162 °C and lower.

Low Pressure Drop & Energy-Saving Design

Conventional differential pressure or displacement meters induce significant head loss, driving up pumping energy consumption and causing unwanted boil-off gas generation during LNG transfer. The E+H FLOWSIC900 features a non-intrusive, full-bore internal construction with no moving mechanical components obstructing the fluid path.

This straight-through design ensures zero pressure drop across the meter run, keeping the process fluid stable and significantly lowering operational expenditure (OPEX). Furthermore, the factory pre-insulated housing options simplify field integration and speed up civil installation, delivering significant capital expenditure (CAPEX) savings for terminal developers and skid builders.

Advanced Self-Diagnostics & Real-Time Monitoring

Featuring Endress+Hauser advanced FLOWgate™ software and integrated smart diagnostics, the FLOWSIC900 performs continuous internal health checks. Crucial operational diagnostics—including signal-to-noise ratio, transducer signal quality, speed of sound, and fluid velocity profile—are automatically evaluated to alert plant operators to potential flow disturbances or process cavitation before fiscal measurement integrity is compromised.

For seamless automation connectivity, the FLOWSIC900 supports industry-standard digital communication options, including dual Modbus RS-485 (RTU/ASCII), pulse/frequency outputs, USB configuration ports, and Bluetooth wireless connectivity, ensuring effortless integration into plant PLC, SCADA, or DCS architectures.

Applications

• LNG Receiving & Export Terminals: Custody transfer fiscal measurement during ship loading, unloading, and jetty transfer.

• Liquefaction & Storage Plants: Volumetric flow measurement in cryogenic production streams, tank farm transfer lines, and storage facilities.

• LNG Carrier Ships & Bunkering: Marine custody transfer flow metering on LNG carriers and bunkering vessel skids.

• Regasification Facilities: Process monitoring and custody volume verification at onshore and offshore regasification terminals.

• Cryogenic Process Skids: Compact meter installations for OEM cryogenic metering skids and valve manifolds.

Technical Specifications

• Manufacturer / Brand: Endress+Hauser (E+H)

• Measurement Principle: Ultrasonic transit-time difference measurement.

• Measured Variables: Volume (a.c.), volumetric flow rate (a.c.), fluid velocity, speed of sound.

• Measuring Medium: Liquefied Natural Gas (LNG) and cryogenic fluids.

• Nominal Pipe Sizes: DN200 to DN900 (8” to 36”), Schedule 40S/STD according to ASME B36.19 / B36.10.

• Measurement Accuracy: Typical error limit ≤ ±0.2% of reading (after flow calibration); Metrological OIML R117 Class 0.3 compliant.

• Repeatability: ≤ ±0.05% of the measured value.

• Operating Pressure Range: 0 bar(g) to 19 bar(g) (0 psi(g) to 275 psi(g)).

• Digital Communication: Dual Modbus RS-485 (RTU/ASCII), Bluetooth, USB diagnostic interface.

• Digital Outputs: 2x Digital output / Frequency output (up to 10 kHz).

• Explosion Approvals: IECEx (Ex db ia [ia Ga] IIA T4 Gb), NEC/CEC (Class I, Div 1/2, Group D T4 / Zone 1).

• Flange & Pressure Ratings: ASME B16.5 / ASME B16.47 flanges.

FAQ

Q1: Is the Endress+Hauser FLOWSIC900 supplied as an authentic original unit?A: Yes. We supply 100% genuine, brand-new Endress+Hauser instruments complete with original factory serial numbers, calibration reports, and official metrological documentation.

Q2: What makes the FLOWSIC900 specifically suited for LNG custody transfer compared to standard meters?A: The FLOWSIC900 is engineered specifically for cryogenic conditions down to LNG temperatures. It features an ultra-low measurement uncertainty meeting OIML R117 Class 0.3, a full-bore zero-pressure-loss construction, and specialized pre-insulated options to prevent boil-off during high-rate transfer.

Q3: How does the FLOWSIC900 handle diagnostics during operation?A: The meter utilizes Endress+Hauser FLOWgate™ software, offering continuous real-time diagnostic monitoring of acoustic signal quality, sound speed, and velocity profiles to ensure long-term measurement accuracy without unexpected downtime.

Q4: How can I request distributor pricing and lead times for my pipeline project?A: Simply contact our team with your required pipe size (DN200 to DN900), flange rating, and project parameters. We will provide prompt, competitive distributor pricing, verified lead times, and global shipping options.

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