PanaFlow FLI

# Product Introduction
The PanaFlow FLI is a robust and reliable ultrasonic flow measurement system specially designed for monitoring high-flow gas under complex working conditions. The system is available in two configuration options: flow cell (spool-style) and nozzle-only, which can flexibly meet existing or newly added flow requirements.


# Features and Advantages
- Adopts reliable ultrasonic technology with no drift measurement or routine calibration required.
- No obstructions in the pipeline, avoiding pressure loss.
- Offers a wide monitoring range of 0-100 m/s (328 ft/s) applicable to all process scenarios.
- Equipped with rugged, field-proven Panametrics titanium gas sensors; alternative materials are available based on gas composition.
- New compact insertion design supports 24/7 continuous operation and allows easy access to sensors.
- Advanced diagnostic functions enable full visibility and real-time tracking of the operational status and stability of production processes.


# Product Parameters
## Product Specifications
### Fluid Type
Gas


### Flow Measurement
Patented Transit Time™ Mode


### Size
Standard: 3 inches to 16 inches (80 mm to 400 mm)
Optional: Custom sizes available upon request


### Accuracy
- ±1.5% of reading (Flow Cell, Standard Calibration)
- ±1.0% of reading (Flow Cell, Enhanced Calibration)
- ±1.5% to ±2.5% of reading (Nozzle System)
- ±0.02 m/s (0.075 ft/s) of reading at flow velocities from 1.5 m/s (5 ft/s) up to Qmax
- Velocity range: 0.15 to 1.5 m/s (0.5 to 5 ft/s)
Final installation requires a fully developed flow profile (typically 20 pipe diameters upstream and 5 pipe diameters downstream), with no CFD analysis needed.
Applications with piping layouts that generate swirl (e.g., two out-of-plane elbows) may require additional straight pipe runs or flow conditioning. CFD simulation with shorter straight pipe sections is available; consult Panametrics for details.


### Repeatability
±0.5% of reading


### Measurement Range
0 - 100 m/s (328 ft/s), depending on selected transducer


## Sensor Specifications
### Temperature Range
- Normal Temperature (NT): -55°C to 150°C
- High Temperature (HT): -50°C to 250°C


### Pressure Range
Maximum Allowable Working Pressure: 285 psig (18.63 bar); retracts at 50 psig (4.46 bar) or lower


### Sensor Material
- Standard: Titanium
- Optional: Monel, Hastelloy alloy or SS316


### Hazardous Area Classification
Class I, Division 1 explosion-proof; Optional Explosion-proof Group B (on request);
Type II 2G explosion protection, Ex rating IIC T6..T2 Gb, compliant with IEEx and ATEX standards (II 2G).
Other certifications are available upon request. The integrated XAMP preamplifier can be mounted within certified assemblies.


# Product Applications
## Application Examples
- Fuel Gas
- Natural Gas
- Waste Gas
- Flue Gas
- Shale Gas
- Coal Bed Methane
- Steam Recovery
- Biogas
- Flare Gas
- Water Vapor