Flow Meters
Flow meters are essential instruments for measuring the velocity, volume, or mass of liquids and gases in industrial processes. Whether monitoring water flow in treatment plants, measuring fuel consumption, or controlling chemical dosing, the right flow meter ensures accuracy, reliability, and efficiency.
At LONGVISTA, we offer a wide range of industrial flow meters — including electromagnetic, ultrasonic, radar, vortex, turbine, and Coriolis mass flow meters — suitable for water management, HVAC, chemical processing, and energy production.
Our flow meters are designed for high precision, low maintenance, and long-term stability, helping you optimize performance and reduce operational costs.
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Coriolis Flow Meters (1)
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Electromagnetic Flow Meters (2)
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Oval Gear Flow Meters (1)
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Radar Flow Meters (1)
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Thermal Flow Meters (1)
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Turbine Flow Meters (2)
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Ultrasonic Flow Meters (2)
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Vortex Flow Meters (1)
Applications of Flow Meters
Flow meters are widely used across industries where precise flow monitoring is critical for safety and efficiency. Typical applications include:
- Water and wastewater treatment
- Building HVAC systems
- Chemical and petrochemical processing
- Food and beverage production
- Oil and gas transfer
- Agriculture and irrigation systems
- Power plants and boiler systems
How to Choose the Right Flow Meter
Selection depends on the medium (liquid, gas, steam), conductivity, pipe size, temperature, and required accuracy:
- Clean, conductive liquids → Electromagnetic Flow Meters
- Non-conductive or corrosive liquids → Ultrasonic Flow Meters
- Open channel flow → Radar Flow Meters
- Steam or gas → Vortex or Thermal Flow Meters
- Custody transfer or mass flow → Coriolis Flow Meters
Key Advantages of Our Flow Meters
- Wide measuring range for liquids, gases, and steam
- High accuracy and repeatability
- Corrosion-resistant materials for industrial environments
- Easy installation and minimal maintenance
- Compatible with digital outputs: 4–20mA, RS485, Modbus, LoRa, and more
- Proven reliability in water treatment, HVAC, and process automation
Frequently Asked Questions (FAQ)
Q1: What is a flow meter used for?
A flow meter measures the velocity or volume of liquids and gases to monitor process efficiency and control system performance.
Q2: Which type of flow meter is most accurate?
Coriolis and electromagnetic flow meters are among the most accurate, offering ±0.2% or better measurement precision.
Q3: Can flow meters be used for both liquids and gases?
Yes, but the right type must be selected — vortex or thermal for gases, electromagnetic and ultrasonic for liquids.
Q4: What industries use flow meters?
Common industries include water/wastewater, HVAC, chemical processing, oil and gas, and food & beverage.
Q5: How can I integrate a flow meter into my monitoring system?
Most of our flow meters support analog (4–20mA) and digital communication (RS485, Modbus, LoRa, NB-IoT, 4G RTU) for seamless integration.
