Venturi Flow Meters

The Venturi Flow Meter is a differential pressure element designed to accurately measure the flow of liquids, gases or steam by forcing flow into a smaller diameter section of pipe, then measuring the pressure differences between the unrestricted flow and the restricted flow. It can be installed in any position with minimal straight pipe requirements (5 pipe diameters upstream and 2 pipe diameters downstream)


  • Three designs for optimal combination of accuracy, repeatability and cost
  • Maintenance free (no moving parts)
  • Pipe size: 1/2…72 in. (13…1829 mm)
  • Calibrated accuracy: up to ± 0.25% of reading
  • Maximum pressure loss: 6% of DP
  • Carbon Steel Construction
  • ⅛”MNPT x ¼” SAE Brass Ball Process Connections
  • NPT, Butt Weld or Flanged End Connections
  • Polycarbonate ID Tag
  • Maximum Temperature 250⁰F (120⁰C)
  • Maximum Pressure 300 PSIG (2070 kPa)
  • Custom designs available


  • Quick Disconnect Fittings
  • Pressure & Temperature Plugs
  • Pressure Port Extensions
  • Stainless Steel ID Tags