Mass Flowmeters : Direct Mass Flow Measurement for Superior Accuracy

Pioneer offers advanced mass flowmeters that directly measure the mass flow rate of liquids and gases, providing superior accuracy and eliminating the need for density compensation. This makes them ideal for applications where precise control and measurement are critical.

The Advantages of Direct Mass Flow Measurement

• Density Independence : Mass flow rate is not affected by changes in fluid density due to temperature or pressure variations. Volumetric flow rate is affected.
• Higher Accuracy : Mass flowmeters generally offer higher accuracy than volumetric flowmeters, especially when fluid properties are variable.
• Simplified Calculations : Mass flow is often the desired measurement in many processes (e.g., combustion, chemical reactions).
• Improved Process Control : More precise control of ingredient ratios and reaction stoichiometry.

Types of Mass Flowmeters

• Coriolis Mass Flowmeters : These meters use the Coriolis effect to measure mass flow. The fluid flows through one or more vibrating tubes. The vibration is affected by the mass flow rate, and this effect is measured to determine the flow.
  • Advantages : Very high accuracy, can measure liquids and gases, can also measure density, wide turndown ratio.
  • Disadvantages : Relatively high cost, can be sensitive to vibration, may have pressure drop.
• Thermal Mass Flowmeters : These meters measure mass flow by sensing the amount of heat absorbed by the fluid. A heated sensor is placed in the flow stream, and the temperature difference between the sensor and the fluid is related to the mass flow rate.
• Advantages: Good for low flow rates, relatively low cost, no moving parts.
• Disadvantages: Lower accuracy than Coriolis meters, primarily used for gases, can be affected by changes in gas composition.

Application

• Chemical Processing : Precise control of reactant ratios, batching, and blending.
• Oil and Gas : Custody transfer of natural gas and other hydrocarbons.
• Food and Beverage : Accurate measurement of ingredients, ensuring consistent product quality.
• Pharmaceuticals : Precise control of fluid flow in manufacturing processes.
• Semiconductor Manufacturing : Measuring the flow of specialty gases.
• Research and Development : Accurate flow measurement for experiments and analysis.

Key Considerations

• Fluid Type : Coriolis meters are more versatile (liquids and gases), while thermal mass meters are typically used for gases.
• Flow Range : Select a flowmeter with an appropriate flow range.
• Accuracy Requirements : Coriolis meters generally offer the highest accuracy.
• Pressure and Temperature : Consider the operating conditions.
• Cost : Coriolis meters are typically more expensive than thermal mass meters

Why Choose Pioneer Mass Flowmeters?

Leading Technology, Application Expertise, Complete Solutions, Exceptional Service, Competitive prices