Flow Meter

Vortex Flow Meter

High accuracy vortex flow meter for liquid flow measurement with stable performance and low pressure loss

The Instrava Curated vortex flow meter is a high-performance solution designed for accurate liquid flow measurement in industrial systems.

Based on the vortex shedding principle, it ensures stable measurement, high accuracy (±0.5%), and long-term reliability, even under varying temperature and pressure conditions.

With robust stainless steel construction and wide operating ranges, this meter is ideal for chemical processing, water systems, and industrial liquid monitoring.

  • ✔ High accuracy liquid flow measurement (±0.5%)
  • ✔ Low pressure loss, energy-efficient operation
  • ✔ Wide temperature and pressure adaptability
  • ✔ Suitable for industrial pipelines and OEM integration
  • ✔ Long service life with minimal maintenance

  Flow Meter Description  

Why Choose This Vortex Flow Meter for Liquid Measurement?

1. High Accuracy for Liquid Flow Measurement
Achieves ±0.5% accuracy for liquids, ensuring reliable process control
👉(high accuracy vortex flow meter for liquid)

2. Wide Temperature & Pressure Range
Operates from -40°C to +350°C and up to 4.0 MPa
👉(industrial vortex flow meter)

3. Low Pressure Loss Design
Cd < 2.6 ensures minimal energy consumption
👉(low pressure drop flow meter)

4. Strong Anti-Vibration Performance
Maintains stability under pipeline vibration conditions
👉(vortex flow meter for industrial pipeline)

5. Durable Stainless Steel Construction
Corrosion-resistant material for long-term use
👉(stainless steel vortex flow meter)

6. Flexible Signal Output & Integration
Supports pulse output and 4–20mA transmission
👉(digital vortex flow meter)

Vortex flowmeter installation diagram showing gas flow direction in pipeline
Vortex shedding flow meter technical drawing with LCD display and specifications

Applications of Vortex Flow Meter

This vortex flow meter for liquid flow measurement is widely used in:

  • Cooling water systems
  • Industrial circulating water monitoring
  • Chemical liquid measurement
  • Oil and light liquid flow monitoring

👉(vortex flow meter for liquid)

  • Petrochemical industries
  • Power plants
  • Food and beverage processing
  • Water treatment systems

👉(industrial flow meter for liquid systems)

Vortex Shedding Flow Measurement Principle

The vortex flow meter operates based on the Kármán vortex shedding principle.

  • Fluid flows past a bluff body
  • Alternating vortices are generated
  • The frequency of vortices is proportional to flow velocity
  • Stable output independent of fluid properties
  • Suitable for a wide range of liquid conditions
  • Minimal drift over time
Vortex flow meter working principle diagram showing fluid passing a bluff body to generate vortex signals and output pulse signals for flow calculation.
Vortex shedding flow meter technical drawing with LCD display and specifications

Built for Distributors, OEMs & Industrial Projects

This vortex flow meter is designed to meet the needs of:

  • EPC contractors
  • Industrial system integrators
  • Distributors and wholesalers
  • Equipment manufacturers
  • ✔ OEM customization available
  • ✔ Stable bulk supply
  • ✔ Easy integration into existing systems
  • ✔ Long-distance signal transmission (≤1200m)
  • ✔ Explosion-proof and IP65 protection

  Flow Meter Parameter  

Technical Specifications of Vortex Flow Meter

ParameterSpecification
Nominal DiameterDN20–DN300 mm
MaterialStainless Steel (1Cr18Ni9Ti)
Pressure Rating1.6 / 2.5 / 4.0 MPa
Temperature Range-40 ~ 250°C / -40 ~ 350°C
AccuracyLiquid: ±0.5%
Rangeability1:10 / 1:15
Pressure Loss CoefficientCd < 2.6
Output SignalPulse (0.1–3000 Hz), 4–20mA
Power Supply12V / 24V / 3.6V Battery
Communication≤1200m transmission
ProtectionIP65
Explosion ProofExd IIB T6

  Instrava OEM/ODM

Reliable Instruments. Solutions That Fit Your Application.

Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.

By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

symbolizing trust and the beginning of a long-term partnership

A vortex flow meter is a device that measures flow rate based on the Kármán vortex shedding principle. When liquid flows past a bluff body inside the meter, it generates alternating vortices. The frequency of these vortices is directly proportional to the flow velocity.

For liquid flow measurement, this method provides:

  • Stable and repeatable output
  • High accuracy (typically up to ±0.5%)
  • Independence from fluid density changes within a certain range

👉 This makes vortex technology ideal for industrial liquid flow measurement in pipelines such as water, chemicals, and light oils.

A vortex flow meter for liquid is best suited for clean, low-viscosity fluids, including:

  • Water (cooling water, circulating water)
  • Chemicals and solvents
  • Light oils
  • Industrial process liquids

However, it is not recommended for:

  • High-viscosity liquids
  • Fluids with large amounts of solid particles
  • Very low flow velocity conditions

👉 For optimal performance, the liquid should have stable flow conditions and sufficient velocity to generate vortices.

A high-quality vortex flow meter for liquid measurement can achieve accuracy up to ±0.5% of reading, making it suitable for most industrial applications.

Accuracy depends on:

  • Stable flow profile (straight pipe requirements)
  • Proper installation
  • Flow velocity within the recommended range

Compared to other technologies, vortex meters offer a good balance between accuracy, durability, and cost-effectiveness.

👉 This makes them widely used in industrial water systems, chemical processing, and energy management applications.

Compared to electromagnetic or turbine flow meters, a vortex flow meter offers several advantages:

  • No moving parts → minimal wear and maintenance
  • Low pressure loss → energy-efficient operation
  • Wide temperature and pressure range
  • Stable performance in harsh industrial environments

Unlike mechanical meters, vortex meters are less prone to drift over time and can maintain consistent long-term measurement accuracy.

👉 This makes them a reliable choice for industrial liquid flow measurement systems.

A vortex flow meter for industrial use requires very low maintenance due to its simple structure and lack of moving components.

Typical maintenance includes:

  • Periodic inspection for buildup or blockage
  • Occasional calibration depending on industry standards

Because there are no mechanical parts subject to wear, the meter can maintain long-term stability with minimal downtime.

👉 This significantly reduces operational costs in large-scale industrial pipeline systems.

o select the best vortex flow meter for liquid, consider the following factors:

1. Pipe size (DN20–DN300 or more)
Must match your pipeline

2. Flow range & velocity
Ensure sufficient velocity for vortex generation

3. Liquid type
Water, chemical, or light oil

4. Temperature & pressure conditions
Check compatibility with operating environment

5. Output requirements
Pulse, 4–20mA, or digital communication

6. Installation conditions
Straight pipe length and vibration environment

👉 Choosing the right configuration ensures accurate measurement, system compatibility, and long-term reliability.

Why Choose Instrava

Built on Consistency, Not Claims

Focused on Industrial Applications

We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.

Strict Product Selection Criteria

Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.

Reliable Supply & Quality Consistency

We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.

Practical, Experience-Based Support

Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.

Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

Industrial measurement scene showing a worker using a precision measuring instrument to measure and mark material on a workbench, demonstrating the practical application of measuring instruments in manufacturing and processing.

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