FL2000-Series

Supported Applications

The Omega FL-2000 Series comprises acrylic variable area flowmeters designed for measuring the flow of air and water. The series is documented for use in medical, industrial, chemical, and laboratory applications. Specific application areas cited include air sampling equipment, aquaculture, desalination equipment, gas analyzers, medical systems, photo processing equipment, and water treatment and distribution systems.

These meters are designed for non-hazardous fluids only; use with hazardous fluids is prohibited per manufacturer warnings.

Operating Conditions & Performance

The FL-2000 Series operates within a maximum process temperature of 150°F (65 °C) and a maximum pressure rating of 100 PSIG (690 kPa). Accuracy varies by model range: models FL-2001 through FL-2025 offer ±5% Full Scale accuracy, while models FL-2031 through FL-2069 provide ±3% Full Scale. Models in the FL-2071 to FL-2128 range are specified with ±2% F.S. accuracy.

Measurement ranges span from 0.1 SCFH of Air (FL-2001) up to 4000 LPM of Air (FL-2096), and for water, from 5 CCM (FL-2018) up to 75 LPM (FL-2082). The meters feature direct reading scales in both SAE and SI units. Special scales can be provided for other gases or liquids.

Key Performance Limits

• Maximum Temperature: 150°F (65 °C)
• Maximum Pressure: 100 PSIG (690 kPa) @ 21°C (70°F)
• Ambient Operating Temperature: 21°C (70°F)

Configuration Options

The series offers a wide configuration envelope across multiple model families, including panel mount and in-line styles. The meter body is constructed from durable clear acrylic with threaded brass inserts for installation.

Fittings and Wetted Materials

• Standard Fittings: Brass fittings are standard on most models; Buna-N elastomers are used with brass fittings.
• Stainless Steel Option: Stainless steel fittings (with Viton O-rings) are available as an option for FL-2001 through FL-2069. Models FL-2071 through FL-2128 utilize 1 NPT PVC fittings only.
• Floating Elements: Floats are available in Black Glass, Stainless Steel, Aluminum, or Black Delrin.

Valve and Certification Options

• No Valve (-NV): Units can be ordered without a valve by adding the "-NV" suffix to the model number.
• Plastic Integral Gate Valve (-V): Available for specific models (e.g., FL-2071-V) as an add-on option.
• Stainless Steel Valve (-SS): A stainless steel valve is available by adding the "-SS" suffix to the model number, applicable where brass valves are standard.
• NIST Certificate: An optional 10-point NIST certificate can be added with the "-NIST" suffix (adds two weeks to lead time).

Housing and Mounting Styles

• Panel Mount / Standard Block: Models FL-2001 through FL-2069 feature a clear acrylic block design with dimensions varying by size group (e.g., 4 in to 6.5 in overall height).
• In-Line and Panel Mount Variants: The series extends to models FL-2071 through FL-2128, which include specific In Line and Panel Mount configurations with distinct dimensional profiles.

Key Product Differences

The FL-2000 Series is segmented into several model ranges that differ in accuracy class, physical dimensions, and connection sizes:

• FL-2001 to FL-2025: Smallest size group (approx. 4 in height), ±5% F.S. accuracy, with 1/8-27 MNPT fittings.
• FL-2031 to FL-2069: Medium and large sizes (up to approx. 6.6 in height), offering improved ±3% F.S. accuracy for the majority of this range, with connection options including ¼-18 MNPT.
• FL-2071 through FL-2128: Higher precision models (±2% F.S.) featuring In Line or Panel Mount styles and restricted to PVC fittings. These models support higher flow ranges, such as up to 4000 LPM of Air.