What type of flow meter do I need? 31st March 202631st March 2026 What kind of flow meter do I need? We always get asked, “What kind of flow meter do I need?”. So here is your essential guide to flow meter types and their applications. Flowquip supply a wide range of flow meters across a variety of industries. These flow meters ensure accurate measurement, process efficiency, safety, and regulatory compliance. They measure how liquids, gases, or vapours move through a pipe, using different physical principles depending on the application. Choosing the right type is essential, because each technology has unique strengths, limitations, and ideal use cases. Below, we break down the most widely used flow meter technologies and highlight where they shine. Electromagnetic (Magnetic) Flow Meters Magnetic flow meters measure the velocity of conductive liquids using Faraday’s law of electromagnetic induction. They have no moving parts and work best with conductive fluids. Electromagnetic flow meters offer excellent performance across a wide range of conditions and are particularly strong in wastewater and industrial liquid applications. Best Applications Wastewater and sewage Slurries and corrosive liquids Chemical processing Municipal water systems Ultrasonic Flow Meters Ultrasonic meters measure flow by transmitting sound waves through the fluid. They can be clamp‑on (non‑intrusive) or inline designs. Due to their non-contact nature they are ideal for clean or dirty fluids, without needing to stop flow for installation. Best Applications Water and wastewater monitoring Large pipelines Energy monitoring (HVAC chilled water) High-pressure applications where non-intrusive sensing is preferred Coriolis Mass Flow Meters Coriolis meters measure mass flow directly by detecting the twisting motion of vibrating tubes as fluid moves through them. They are known for extremely high accuracy and are often used for custody transfer and high-value fluids. Best Applications High-value chemical dosing Oil & gas custody transfer Food and beverage ingredients Liquids requiring direct mass measurement Thermal Mass Flow Meters Thermal mass meters use heat transfer principles to measure the flow of gases. They are particularly effective for low-density or variable-density gases where volumetric meters would be inaccurate. Best Applications Compressed air systems Industrial gas monitoring HVAC and environmental systems Turbine Flow Meters Turbine meters use a spinning rotor to measure flow velocity. They offer good accuracy for clean, low-viscosity fluids and are widely used in industrial and commercial applications. Best Applications Clean water Light oils Chemical batching HVAC systems 6. Variable Area (Rotameter) Flow Meters Variable area meters use a float inside a tapered tube, rising or falling depending on flow. They are simple, visual, and reliable for low-pressure applications. Best Applications Laboratory measurement Light industrial gas/liquid flows Panel-mounted flow monitoring Vortex Flow Meters Vortex meters measure vortices shed by a bluff body placed in the flow stream. They offer good accuracy for steam, gases, and liquids, especially where wide temperature ranges are present. Best Applications Steam systems Compressed gases Industrial process liquids Differential Pressure (DP) Flow Meters Differential pressure flow meters work by introducing a restriction (like an orifice plate or Pitot tube) that creates a measurable pressure drop. Using Bernoulli’s principle, the pressure difference is converted into flow rate. Best Applications Oil & gas pipelines Steam measurement Industrial process fluids High‑temperature/high‑pressure systems Custody transfer applications Conclusion With so many flow meter technologies available—from Turbine and magnetic to Coriolis and ultrasonic—the right choice depends on: Fluid type Process conditions Accuracy requirements Installation constraints Budget and maintenance preferences Get in touch with our team and we will specify the best meter for your application. Back
