Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of flow transmitter vortex type in China. Welcome to buy high quality flow transmitter vortex type at competitive price from our factory. We also accept customized orders.
Products Description
| Parameter | Specification |
|---|---|
| Measurement Principle | Kármán Vortex |
| Flow Range | 1 – 120 L/min |
| Temperature Range | 0~100°C (-10~90°C Optional) |
| Accuracy | ±2% FS |
| Output Signal | 4-20mA, Pulse, RS485, NPN/PNP |
Please see the Specifications for more details.
Typical Applications
Cooling Water Systems
Cooling circuits are often expected to operate continuously with minimal supervision. However, reduced circulation caused by clogged filters, pump wear, or flow restrictions can gradually affect cooling performance and equipment reliability.
The HNF20-AE provides simultaneous monitoring of flow and temperature, helping operators identify abnormal conditions before they lead to unplanned downtime or production interruptions.
Heat Exchangers & Thermal Management Equipment
Efficient heat transfer depends on maintaining stable flow conditions throughout the system. Even small changes in circulation can reduce thermal efficiency and increase energy consumption.
By monitoring both process flow and fluid temperature from a single installation point, the HNF20-AE gives maintenance teams better visibility into system performance and helps simplify troubleshooting.
Laser Equipment & Precision Manufacturing
Laser systems, power electronics, and precision manufacturing equipment rely on consistent cooling to protect sensitive components. A loss of coolant flow may quickly result in overheating and costly equipment damage.
The HNF20-AE continuously supervises cooling circuits, providing early indication of flow reduction or abnormal temperature conditions and supporting reliable equipment operation.
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Why Choose Vortex Technology?
When a liquid flows past a specially designed bluff body, alternating vortices are generated downstream. This phenomenon, known as the Kármán vortex street, occurs at a frequency directly proportional to the flow velocity.
The HNF20-AE detects these vortex frequencies and converts them into accurate flow data. Because the measurement is based on vortex shedding rather than rotating mechanical components, the sensor operates without moving parts in the flow path.
This design helps minimize mechanical wear, reduces maintenance requirements, and provides stable long-term performance in continuous industrial applications.
For cooling systems, thermal management equipment, and process water circuits, vortex technology offers a reliable way to monitor flow while maintaining a compact and robust sensor design.
Unlike turbine-based technologies that rely on rotating components, vortex measurement uses naturally occurring flow phenomena to determine flow rate. This approach provides a dependable balance of reliability, simplicity, and long-term measurement stability, making it well suited for industrial cooling and circulation systems.
Why Engineers Choose Vortex Technology
✔ No Moving Mechanical Parts
✔ Reduced Wear and Maintenance
✔ Stable Long-Term Performance
✔ Compact Sensor Design
✔ Simultaneous Flow and Temperature Monitoring
✔ Suitable for Continuous Industrial Operation
Unlike turbine-based technologies that rely on rotating components, vortex measurement uses naturally occurring flow phenomena to determine flow rate. This approach provides a dependable balance of reliability, simplicity, and long-term measurement stability, making it well suited for industrial cooling and circulation systems.
Key Advantages
✔ Flow & Temperature Monitoring
✔ No Moving Mechanical Parts
✔ Compact Integrated Design
✔ Fast Response Time
✔ Multiple Output Options
✔ IP67 Protection
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HNF20-AE Vortex Flowmeter Parameters |
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Specific Parameters |
Value / Description |
|
Measurement Principle |
The HNF20-AE vortex flowmeter utilizes the theoretical law proposed by Theodore von Kármán in 1912. When there is a cylindrical obstacle or vortex generator in the flowing fluid, alternating vortices are produced downstream. The fluid velocity is proportional to the vortex frequency. Piezoelectric elements detect the number of vortex pulses, and then the circuit amplifies the signal to calculate the fluid flow. |
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Nominal Diameter Range |
DN8,DN10,DN15,DN20,DN25 |
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Housing Material |
Aluminum alloy, ABS industrial plastic (pulse output) |
|
Base Material |
304 Stainless Steel |
|
Connection Method |
Internal thread |
|
Measurement Accuracy |
±2% |
|
Measurement Range |
1~120 liters per minute |
|
Temperature Measurement Range |
0-100°C, -10-90°C, customizable |
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Temperature Accuracy |
≤1℃ |
|
Ambient Temperature Range |
-20..80°C |
|
Transmitter Housing Material |
Unrestricted |
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Display/Operation |
OLED 128×64 |
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Inputs |
24V |
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Outputs |
An alarm contact, 4~20mA, pulse output (configurable) |
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Power Supply |
24VDC |
|
Protection Level |
IP67 |
