Liquid Flow Meters & Switches

Ultrasonic, Volumetric Vortex and Flow Switches for Liquids

Measure liquid flow rates quickly and more accurately with Sierra transit-time ultrasonic flow meters, vortex flow meters or thermal flow switches. Manufactured by Sierra’s team of flow engineers, our liquid flow meters are suited for even the most challenging liquid flow applications.

Choose a Liquid Flow Meter

Ultrasonic liquid mass flow meters, such as the InnovaSonic 207i clamp-on ultrasonic flow meter, achieve high accuracy at low and high flows, and save time with no pipe cutting or process shutdown. Simply clamp the fluid flow indicator on the outside of the pipe for easy setup.

For volumetric flow calculations of influent and effluent water measurement, our economical InnovaMass volumetric vortex flow meters have a metering accuracy +/- 1.0% of reading over a 30:1 range. The insertion version of this liquid flowmeter offers easy installation with our hot tap retractor to make volumetric water flow calculations fast and easy. The on-board apps, such as Meter Tuning and ValidCal diagnostics, give you all the information you need to quick tune your meter to your application for the most accurate volumetric flow calculations.

Built for industrial applications, Sierra’s InnovaSwitch Flow Switch turns on a flow/no flow condition in both gases and liquids and is ideal for industrial pump protection. Perfect for high-temperature applications, the InnovaSwitch Level Switch is triggered on a level change of 0.8 mm and is ideal for tank leak detection.

Boiler MACT Certified

InnovaMass Vortex Flow Meters and InnovaSonic Ultrasonic Liquid Flow Meters are compliant with Boiler MACT regulations for inlet feed water measurement for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR 63, subpart DDDDD).

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InnovaSonic®203

Economical Clamp-On Ultrasonic Water Flow Meter for Accurate Results

  • High performance at an affordable price
  • Simply clamp-on outside of pipe for easy set up
  • Save time with no pipe cutting or process shutdown
InnovaSonic® 210 Ultrasonic Portable Flow Meter

Portable Clamp-On Ultrasonic Flow Meter for High Accuracy Liquid Metering

  • Easy setup in five minutes or less
  • Portable clamp-on transducers measure liquid flows nearly anywhere
  • Save time with no pipe cutting or process shutdown
  • Boiler MACT certified for area source boilers (40 CFR 63, subpart JJJJJJ) and for major source boilers (40 CFR 63, subpart DDDDD) Learn More
InnovaMass® 241S Insertion

Vortex Flow Meters

  • Insertion probe for pipes and ducts up to 72 inches (2M); Optional hot tap - no process shutdown
  • Ideal for saturated or superheated steam, gas, and liquid
  • Volumetric flow rate or mass flow
  • Multivariable for five measurements in one device
  • Energy (BTU) Monitoring for real-time monitoring of energy consumption
  • Highly reliable with no moving parts
  • Loop power option available
  • Rugged, long-lasting design for the industrial applications
InnovaMass® 240S Inline

Vortex Flow Meters

  • Highly reliable with no moving parts
  • Ideal for saturated or superheated steam, gas, and liquid
  • Flexibility with volumetric or multivariable versions
  • Multivariable for five measurements in one device
  • Energy (BTU) Monitoring for real-time monitoring of energy consumption
  • No leaks with all welded gasket-free flow body
  • Loop power option available
InnovaSwitch Flow Switch

Flow Switch for Precision Detection of Liquid / Gas Flows

  • Ultra-sensitive with fast response time
  • Ideal for industrial pump protection
  • 1-year warranty
  • Unique high temperature up to +458°C

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