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Model SSM Venturi Nozzle Flow Meter

Model SSM Venturi Nozzle Flow Meter

The Venturi Model SSM is a Venturi Nozzle design differential pressure flow device. The Preso Hydraulic pure static design utilizes the proven classical ASME and ISO standards for highest accuracy, predictability and repeatability. The flow conditioning generated by the unique hydraulic shape will provide an extremely stable signal in a wide range of flows.


  • Reduced pumping costs
  • Lowest initial cost within Venturi Family
  • Resists wear, maintenance free (no moving parts)
  • Custom Fit lay length and end connections
  • Minimal straight pipe distance requirements
  • Turndown ratio of 10:1
  • Repeatability of ± 0.1%
  • Mounts in any position
  • Low permanent pressure-loss design


  • Provides longevity, reliability and long term performance.
  • Provides an uncalibrated accuracy of ±1% (±0.5% calibrated) with a repeatability of ±0.1%
  • Is designed in accordance to ASME and ISO standards and it offers the highest  “As Built” accuracy
  • Reduced pumping costs
  • Standard and Unique Alloys
  • Durable solution for liquids, gas, steam and mixed media
  • Easily installed in any position with minimal straight pipe requirements (5 pipe diameters upstream and 2 pipe diameters downstream.
  • Also known as “Classical” or Herschel”
  • Optional: RTD



1/2...60 in.
Temperature Range
Up to 1500 °F
Flow Range
0.25...825,000 gpm
Pressure Range
Up to 9,000 PSI
(uncalibrated) ±1 %
(calibrated) ±0.5 %

Additional Specifications

Building Automation / HVAC
Process or Industrial

Product Resources

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