Key Features
Direct Mass Flow Measurement
Measures mass flow directly, independent of fluid density, temperature, or pressure changes. No additional calculations or corrections required.
High Accuracy ±0.1%
Industry-leading accuracy with 20:1 turndown ratio. Repeatability of ±0.05% ensures reliable and consistent measurement.
Multi-Variable Measurement
Simultaneously measures mass flow, volume flow, density, and temperature in a single device. Reduces equipment costs and installation complexity.
Wide Temperature & Pressure Range
Operates from -200°C to +350°C with process pressure up to 10MPa. Suitable for cryogenic, high-temperature, and high-pressure applications.
No Straight Pipe Requirement
No upstream or downstream straight pipe lengths required. Flexible installation in tight spaces and existing piping systems.
Low Maintenance
No moving parts, no wear components. Minimal maintenance required, reducing downtime and operating costs.
Product Overview
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The Coriolis mass flow meter (also known as a Coriolis flowmeter or Coriolis mass flowmeter) is a device that measures the mass flow rate of a fluid traveling through a vibrating tube. When fluid flows through the oscillating tube, it generates a Coriolis force proportional to the mass flow rate. The meter detects the phase shift between the inlet and outlet sides of the tube, which is directly proportional to the mass flow.
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This Coriolis meter consists of a sensor (flow tubes, drivers, and pick-off coils) and a transmitter (electronics for signal processing and output). Available in both integral (compact) and remote (split) mounting configurations, the meter offers flexibility for various installation environments. With sizes ranging from DN06 to DN80, it accommodates flow rates from low-flow to high-capacity applications.
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Unlike volumetric flow meters, the Coriolis mass flow meter provides direct mass flow measurement that is immune to changes in fluid properties-making it the preferred choice for custody transfer, batching, and critical process control.
Specifications
| Measurement Principle | Coriolis force (direct mass flow measurement) |
| Measured Media | Liquids, gases, slurries, viscous fluids |
| Nominal Sizes | DN06, DN15, DN25, DN50, DN80 |
| Mass Flow Accuracy (Liquid) | ±0.1% of rate |
| Mass Flow Repeatability | ±0.05% of rate |
| Volume Flow Accuracy | ±0.15% of rate |
| Volume Flow Repeatability | ±0.075% of rate |
| Density Accuracy | ±0.002 g/cm³ (±2.0 kg/m³) |
| Density Repeatability | ±0.0005 g/cm³ (±0.5 kg/m³) |
| Density Range | 0.2 g/cm³ ~ 3.0 g/cm³ (200 kg/m³ ~ 3000 kg/m³) |
| Temperature Accuracy | ±0.5°C |
| Temperature Repeatability | ±0.2°C |
| Process Temperature Range | -200°C ~ +350°C |
| Ambient Temperature Range | -40°C ~ +55°C (operation); -40°C ~ +70°C (storage) |
| Maximum Process Pressure | Up to 10MPa |
| Wetted Materials | 316L stainless steel (standard); C-22, 304, Tantalum, Zirconium (optional) |
| Enclosure Material | 304 stainless steel (sensor); Cast aluminum with epoxy coating (transmitter) |
| Protection Rating | IP65 |
| Electrical Output | 4-20mA (active/passive), frequency (0-10kHz), RS485, HART |
| Power Supply | 24VDC (1A max) or 220VAC (0.1A max) |
| Power Consumption | Max 30W |
| Mounting Options | Integral (compact) or remote (split) installation |
| Ex Approvals | ATEX, IECEx, NEPSI (available upon request) |
Application
The Coriolis mass flow meter is the preferred solution for applications requiring high-accuracy direct mass flow measurement across a wide range of fluids and process conditions. Its ability to measure mass flow, density, and temperature simultaneously-without being affected by changes in fluid properties-makes it ideal for custody transfer, process control, batching, and quality assurance in industries from oil and gas to pharmaceuticals and food production.
Chemical & petrochemical processing
Power generation & energy management
Slurry & suspension flow measurement
Automotive fuel & fluid testing
Oil & gas custody transfer
Pharmaceutical batching & dosing
Food & beverage production
Pulp & paper manufacturing
High-temperature process monitoring
Cryogenic fluid measurement (LNG, liquid nitrogen)
External dimensions
Integrated installation
Separate installation
FAQ
Q: What is a Coriolis mass flow meter and how does it work?
A: A Coriolis mass flow meter measures mass flow rate using the Coriolis force principle. Fluid flowing through a vibrating tube generates a Coriolis force that causes a phase shift between the inlet and outlet sides of the tube-this phase shift is directly proportional to the mass flow rate. The meter directly measures mass flow without requiring temperature or pressure compensation.
Q: What fluids can a Coriolis mass flow meter measure?
A: Coriolis mass flow meters are suitable for a wide range of fluids including liquids, gases, slurries, viscous fluids, and multi-phase mixtures. Common applications include chemicals, hydrocarbons, food products, pharmaceuticals, cryogenic fluids, and high-temperature process streams.
Q: Does a Coriolis flow meter require straight pipe lengths upstream and downstream?
A: No. Unlike many other flow meter technologies, Coriolis mass flow meters do not require straight pipe runs upstream or downstream. This makes them ideal for installation in tight spaces, retrofits, and applications with limited piping layout flexibility.
Q: What is the difference between mass flow and volume flow measurement?
A: Mass flow measures the actual mass of fluid passing through the meter (e.g., kg/h), which is independent of temperature and pressure. Volume flow measures the volumetric quantity (e.g., L/h), which varies with fluid density changes. Coriolis meters provide direct mass flow measurement, which is more accurate and reliable for process control and custody transfer.
Q: What communication protocols are supported?
A: The Coriolis mass flow meter supports multiple communication options including 4-20mA analog output, frequency/pulse output, RS485 Modbus, and HART protocol. Custom communication protocols can be configured upon request.
Q: Can the meter be used in hazardous areas?
A: Yes. The Coriolis mass flow meter is available with ATEX, IECEx, and NEPSI ex approvals for installation in hazardous areas. Please consult our sales team for specific certification requirements.
Q: What is the turndown ratio and why does it matter?
A: Turndown ratio is the range between the maximum and minimum flow rates that the meter can measure while maintaining specified accuracy. Our Coriolis mass flow meter offers a 20:1 turndown ratio, meaning it maintains ±0.1% accuracy from 5% to 100% of full scale-providing excellent performance across a wide operating range.
Q: How do I select the right size Coriolis mass flow meter for my application?
A: Size selection depends on your expected flow rate, fluid properties, process temperature and pressure, and available piping connections. Our engineering team can assist with sizing calculations and recommendations based on your specific application requirements-contact us for a free consultation.
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