The Rosemount 3416 is the ultimate solution for pipeline operators seeking to minimize Lost and Unaccounted For (LAUF) gas. By combining a field-proven 4-path British Gas-design chordal meter with a 2-path reflective check meter in a single body, the 3416 provides redundant flow measurement certified to OIML R137 Accuracy Class 0.5. This 4+2 configuration ensures that fiscal accuracy (±0.1%) is always verified by an independent internal check system, eliminating common-mode errors.
Unlike standard ultrasonic meters, the Rosemount 3416 features a highly sensitive vertical 90° diagnostic path. This unique orientation pinpoint trace amounts of liquid and debris at the bottom of the pipe—the leading cause of measurement bias in "wet gas" applications. Combined with a 30° reflective path to detect pipeline wall buildup, the MeterLink™ Software provides an intuitive 3D view of the flow profile, allowing operators to resolve swirl, crossflow, and turbulence issues before they impact the bottom line.
| Feature | Specification Details |
| Line Sizes | DN100 to DN600 (4-in to 24-in) |
| Path Configuration | 4-Path Chordal (Fiscal) + 2-Path Reflective (Check) |
| Accuracy (4-Path) | ±0.1% of reading over calibration range |
| Accuracy (2-Path) | ±0.1% for 1.5 to 30.5 m/s |
| Fluid Type | Natural Gas, Wet Gas, Process Gas |
| Operating Pressure | Up to 27,579 kPag (4,000 psig) |
| Temperature Range | -50°C to +100°C (-58°F to +212°F) with T-22/T-41 |
| Calculations | AGA 8 Compressibility & AGA 10 Speed of Sound |
The Rosemount 3416 excels in shale gas production and transmission interconnects where gas quality may deviate. Its ability to detect liquid dropout makes it the premier choice for:
Custody Transfer Points: Where high-stakes billing requires constant verification.
Dirty Gas Streams: Identifying debris or compressor oil carryover in real-time.
Critical Infrastructure: Reducing manual inspection costs by using Smart Meter Verification.
When selecting the 3416, evaluate your LAUF risk. If your pipeline is prone to liquid condensation or fouling, the 4+2 configuration provides a safety net that standard 4-path meters cannot. For line sizes up to 24 inches, ensure you specify the correct transducer (T-21 for standard or T-22 for high-pressure/wide-temp) to match your process conditions. If your application involves larger diameters or liquid hydrocarbons, consider standardizing with the[Rosemount 3418 8-Path Meter] or explore our high-precision [Liquid Ultrasonic Flow Meters] designed for hydrocarbon custody transfer.
The Rosemount 3416 is a "two-in-one" integrated package that simplifies installation by removing the need for a separate check meter run.
Installation: Maintain the correct orientation to ensure the vertical path is at the bottom for debris detection.
Maintenance: Utilize the Smart Meter Verification Basic feature in the 3410 Electronics to track health baselines without process shutdown.
Upgrades: If you are overhauling an existing station, the 3416 can often replace legacy meters to provide an immediate diagnostic upgrade. For non-contact maintenance, the transducers are extractable under pressure.
Q: How does the Rosemount 3416 help reduce Lost and Unaccounted For (LAUF) gas?
A: The Rosemount 3416 is equipped with a highly sensitive, vertical 90° diagnostic path. This path specifically detects trace amounts of liquid dropout and debris at the bottom of the pipe—common issues that cause measurement bias in standard meters. By identifying these in real-time, operators can maintain billing integrity.
Q: What is the primary advantage of the 4+2 dual-configuration?
A: It integrates two independent measurement systems—a four-path chordal fiscal meter and a two-path reflective check meter—within a single body. This provides redundant verification of flow data and prevents common-mode errors without the capital expense of an additional meter run.
Q: Can the Rosemount 3416 detect buildup on the internal pipeline walls?
A: Yes. The meter includes a dedicated 30° single reflective path that monitors for wall buildup (fouling) in real-time. This predictive diagnostic helps determine maintenance schedules based on actual meter health rather than estimated timelines.
