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FL6400-Series
In-line Variable Area Flow Meters
Models In Stock
- ± 2% Full Scale Accuracy
- ± 1% Repeatability
- Direct Reading Scale for Water
- For Corrosive Fluids
FL6400-Series
From
$
1,326.39
Models In Stock
Product Overview
- Accuracy ± 2 %
- Additional Features 1 Dual Scale (GPM/LPM)
- Diameter 2.4 in
- Dimensions Note 2.4 x 2.1 in
- Length 6.6 in
- Materials 316 Stainless Steel, Stainless Steel
- Materials, Wetted 316 Stainless Steel, Ceramic, Polypropylene
- Operating Pressure, Max 6000 psi
- Process Connection Size 1/2 in
- Process Connection Type NPT Female
- Process Temperature, Max 116 °C
- Repeatability ± 1%
- Scale Direct Read
- Series ID FL6400-Series
- Valve Included false
- Weight 2.95 lb
Supported Applications
The Omega FL-6400A in-line variable area flowmeters are designed for use with many caustic or corrosive fluids. The series is engineered to handle high-pressure systems and offers immunity to viscosity variances due to a sharp-edged orifice float design. These meters feature direct-reading scales calibrated for water on the metering tube, while correlation equations in the user's manual support measurement of other fluids.
Operating Conditions & Performance
The FL6400-Series operates with a maximum pressure rating of 413.7 bar (6000 psig). Standard units are rated for process temperatures up to 116°C (240°F), while an optional high-temperature configuration supports operation at 204°C (400°F). Performance specifications include ±2% FS accuracy and ±1% repeatability. The unique spring-bound design flow rate indicator allows the metering tube to function with both clear and opaque liquids.
Measurement Ranges
The series offers four standard water ranges:
- FL-6402A: 0.8 to 7.5 LPM (0.2 to 2.0 GPM)
- FL-6404A: 2 to 19 LPM (0.5 to 5.0 GPM)
- FL-6412A: 3 to 38 LPM (1.0 to 10 GPM)
- FL-6416A: 4 to 56 LPM (1.0 to 15 GPM)
Configuration Options
The FL-6400A series features stainless steel construction with specific wetted materials selected for durability in aggressive environments:
- Metering Tube, Float, and Spring: 316 SS
- Seals: FKM
- Magnet: Polyphenylene sulfide/ceramic
The meters utilize a ½ FNPT process connection. Due to the unique construction design, these flowmeters can be mounted in any position. Physical dimensions are 61.0 x 53.6 mm (2.4 x 2.11") for standard units rated at 116°C (240°F), with an overall length of 168 mm (6.6") for all units.
Configuration Options
The series supports specific configuration options via model number suffixes:
- -H Suffix: Required for the optional 204°C (400°F) temperature rating; incurs additional cost.
- -BSPP Suffix: Adds BSPP threads to units with no additional charge.
The series includes a one-year warranty and is RoHS compliant. Each unit ships complete with an operator's manual containing correlation equations for fluids other than water.
Key Product Differences
Variants within the FL6400-Series are distinguished by their specific flow range capabilities, identified in the model number (e.g., FL-6412A). The primary functional variation is the temperature rating: standard models operate to 116°C (240°F), while units with the "-H" suffix support up to 204°C (400°F). Process connection variations are available by adding the "-BSPP" suffix for British Standard Pipe Parallel threads, distinct from the default ½ FNPT.
PDFs & Manuals
