HVT-FI Fabricated Insert Venturi / HVT-PI Plastic Insert Venturi



HVT-FI Halmi Fabricated Insert

Data Sheet


  • Line Size
    • 3 to 144 inches. Larger sizes available upon request.
  • Head loss % of Differential
    • 3.50 to 10.0 percent
  • Basic Accuracy (% of Total)
    • +/- 0.25 (Calibrated) +/- 0.50 (2 Sigma) (Uncalibrated)
  • Minimum pipe Reynolds number
    • Must be greater than 75,000 for basic accuracy
  • Required Straight Piping
    • Consult PFS datasheet
  • Beta Range
    • 0.20 through 0.80
  • Useful Service Life
    • Very Long
  • Service Functional Limits
    • Clear liquid, gas, and digester gas
  • Applications
    • Potable Water, Water Treatment Plant, Wastewater Treatment Plant, Air, Gas, Clean Liquids
  • Common Materials
    • Meter Type Body Throat
    • FI (Fabricated Insert Venturi) 304SS or Carbon Steel 304 or 316SS
    • PI (Plastic Insert Venturi) Fiberglass (FRP) 304 or 316SS
    • Other Available Materials not limited to
      • Aluminum, Zirconium, Hastelloy, Monel, Duplex SS, Titanium, Tantalum, 321SS

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