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FL45100-Series
In-line Variable Area Flow Meters With Half Union Adaptors
- Available in In-Line and Panel Mount Styles
- Models with Protective Shield and for Harsh Environments
- One-Piece Meter Body of Injection Molded Polysulfone
- Floats made of 316SS, TFE , or Hastelloy C
Product Overview
- Accuracy ± 3 %
- Additional Features 1 Dual Scale (GPM/LPM)
- Dimensions Note Dimensions: 368 H x 84 mm W (14.5 x 3.3"); with 90° adaptors: 432 H x 381 mm W (17 x 15")
- Height 14.5 in
- Materials Polysulfone
- Operating Pressure, Max 150 psi
- Pressure Drop, Max 1 psi
- Process Connection Size 1 in
- Process Connection Type NPT Female
- Process Temperature, Max 100 °C
- Scale Direct Read
- Series ID FL45100-Series
- Width 3.3 in
Supported Applications
The Omega FL45100 Series consists of in-line variable area flowmeters designed for liquid and gas applications requiring a rugged, chemical-resistant meter body. These units feature half union adaptors and are available in standard in-line configurations or with 90° adaptors for panel mount installations.
Operating Conditions & Performance
The series operates within specific pressure and temperature limits defined by the molded polysulfone construction. The maximum process temperature is rated at 100°C (212°F) at 0 psi, while the pressure limit is specified as 10 bar (150 psi) at 21°C (70°F). Accuracy for the series is listed as ±3%.
Critical environmental constraints apply to this material: units are not recommended for applications involving direct sunlight or significant sources of ultraviolet light. The maximum pressure drop across the meter is documented at 1.0 psi.
Configuration Options
The FL45100 Series offers configurable options regarding float materials, protective features, and calibration standards to address specific process needs:
- Float Materials: Standard floats are 316 SS. Optional TFE or Hastelloy C (suffix '-HL') is available for harsh environments.
- Housing & Mounting: The standard body includes a precision-textured light-admitting surface. A protective shield option (suffix '-SH') is offered, and 90° adaptors (suffix '-PM') enable panel mount configurations with a 1 MNPT connection.
- Calibration: Standard units are available; optional 5-point NIST calibration can be specified using the suffix '-NIST'.
The series covers flow ranges from 1 to 40 GPM (or equivalent LPM values) across four primary model numbers:
- FL45101: 1 to 10 GPM / 4 to 40 LPM
- FL45102: 2 to 20 GPM / 7.5 to 75 LPM
- FL45103: 3 to 30 GPM / 12 to 115 LPM
- FL45104: 4 to 40 GPM / 15 to 155 LPM
All models feature a 1 FNPT process connection. The standard overall dimensions are 368 H x 84 mm W (14.5 x 3.3"); units with 90° adaptors measure 432 H x 381 mm W (17 x 15"). Weight is listed as 1.4 kg (3 lb).
Key Product Differences
Variation within the FL45100 Series is primarily defined by flow range and optional suffixes that alter material composition or installation geometry.
- Model Numbers: Distinguishable by their specific GPM/LPM ranges (FL45101 through FL45104).
- Suffix Options: The base model number is followed by optional codes for float material (-HL), protective shield (-SH), panel mount adaptors (-PM), and NIST calibration (-NIST). For example, a unit with Hastelloy C floats would be designated FL45102-HL.
- Connection Geometry: Standard models utilize 1 FNPT connections. Models configured with the -PM suffix for panel mounting feature a 1 MNPT connection and increased overall dimensions due to the 90° adaptor assembly.
PDFs & Manuals
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