Vortex Flow Meters - All You Need to Know
A vortex flow meter is a type of volumetric flow meter that makes use of a normal phenomenon that happens when a liquid flows about a bluff thing. Vortex flow meters function under the vortex shedding code, where vortices are shed alternately downstream of the thing. The incidence of the vortex shedding is directly relative to the velocity of the liquid graceful through the meter. Vortex flow meters are best suited for flow capacities where the introduction of moving parts presents problems. They are available in industrial grade, brass, or all plastic manufacture. Sensitivity to variations in the process conditions is low and, with no moving parts, comparatively low wear compared to other types of flow meters.
How does a Vortex Flow Meter work?
The operation of a Vortex Flow Meter is based on the principle that when fluid flows past a bluff body, it generates alternating vortices on either side of the body. These vortices are shed in an alternating pattern, and their frequency is directly proportional to the velocity of the fluid flow. The Vortex Flow Meter detects these vortices using a sensor positioned downstream of the bluff body. The sensor counts the number of vortices passing by in a given time interval, and from this data, the flow rate of the fluid can be accurately calculated.
What are the drawbacks of vortex?
Watch-Outs: The low flow cutoff is the chief limitation of a vortex flow meter, and it brands the meter unsuitable for any application where measuring low flows at high turndown is required. The low flow cutoff point is determined by the viscosity of the fluid and thus may vary with fluid temperature and arrangement.
What is the maximum velocity of a vortex flow meter?
Maximum flow rate is limited by the maximum allowable meter pressure loss and the vapor pressure (see paragraph pressure drop in relation to sizing, flashing and cavitation). 3 m/s, and for gases the maximum flow velocity will not exceed 30 m/s (matches well with the flow meter operational range).
Pros of Vortex Flow Meters:
1. Wide Range of Applications: Vortex Flow Meters can be used to measure the flow of various fluids, including liquids, gases, and steam, making them versatile across different industries such as oil and gas, chemical processing, water treatment, and additional.
2. High Accuracy: Vortex Flow Meters are known for their high accuracy, particularly in applications where the flow rate is relatively steady and predictable.
3. Minimal Maintenance: Compared to some other types of flow meters, Vortex Flow Meters require minimal maintenance due to their simple design and lack of moving parts.
4. Wide Turndown Ratio: Vortex Flow Meters typically have a wide turndown ratio, meaning they can accurately measure a wide range of flow rates with good resolution.
Cons of Vortex Flow Meters:
1. Sensitive to Flow Profile: Vortex Flow Meters can be sensitive to variations in the flow profile, particularly in applications where the flow is not fully developed or where there are disturbances upstream of the meter.
2. Pressure Drop: The presence of a bluff body in the flow path can cause a pressure drop across the meter, which may be undesirable in some applications, particularly those with low-pressure systems.
3. Installation Requirements: Proper installation is crucial for accurate measurement with Vortex Flow Meters. Factors such as the distance between the meter and any elbows or valves upstream of the meter can impact performance.
4. Higher Initial Cost: While Vortex Flow Meters offer high accuracy and reliability, they can have a higher initial cost compared to some other types of flow meters.
What are the Applications for Vortex Flow Meters?
- Food & Beverage
- Chemical & Petrochemical
- Energy Industries
- Metallurgy
- Pharmaceuticals
- Oils & Fuels
- Steam Measurement
What Media Can Vortex Flow Meters Measure?
- Water, Chilled or Hot
- Ultra-pure Water
- De-ionized Water
- Glycol Mixtures
- Solvents & Acids
Vortex Flow Meters are a reliable and accurate solution for measuring the flow of fluids in a wide range of industrial applications. Despite some limitations, their versatility, accuracy, and minimal maintenance requirements make them a popular choice for engineers and operators seeking precise flow measurement. By understanding the principles behind Vortex Flow Meters and considering their pros and cons, industries can make informed decisions when selecting flow measurement instrumentation for their specific needs.
Vortex Flow Meter Manufacturers
Saitechflow Instruments & Control provide the best Vortex flow meter supplier, Manufacturer, Wholesaler in Pune, Mumbai, and Maharashtra, India. View our Saitechflow Instruments & Control. To see all of our vortex flow meters, visit our vortex flow meter. Learn more about why you should partner with SFIC for your application.