Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of digital vortex flow meter in China. Welcome to buy high quality digital vortex flow meter at competitive price from our factory. We also accept customized orders.
| Key Specification | Value |
|---|---|
| Technology | Vortex Shedding |
| Measured Media | Steam, Gas, Liquid |
| Pipe Size Range | DN15–DN400 |
| Accuracy | Up to ±0.5% |
| Temperature Range | Up to 350°C |
| Communication | 4-20mA / RS485 / HART |

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Applications
- Steam flow measurement in boilers, heating systems, and steam distribution networks.
- Compressed air monitoring in industrial plants and manufacturing facilities.
- Gas flow measurement for nitrogen, oxygen, natural gas, and other industrial gases.
- Water, cooling water, condensate, and process liquid flow monitoring.
- Chemical, petrochemical, pharmaceutical, and food processing industries.
- Energy management, utility monitoring, and industrial automation system


Advantages
- Suitable for steam, gas, and liquid flow measurement.
- High accuracy and stable performance.
- No moving parts for low maintenance requirements.
- Low pressure loss and long service life.
- Supports high-temperature applications up to 350°C.
- Available with 4-20mA, RS485, and HART communication.
- Easy integration with PLC, DCS, and SCADA systems.
- Multiple installation options for different pipeline requirements.
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HNF40-A Vortex Flowmeter Parameters |
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Specific Parameters |
Value / Description |
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Measurement Principle |
The intelligent industrial vortex flowmeter works based on the principle of the Karman vortex street. When the fluid flows through the vortex-generating body with a triangular pillar in the pipeline, a regular vortex row (i.e., the Karman vortex street) is alternately generated on both sides downstream. The frequency of vortex separation is directly proportional to the flow rate of the fluid. The sensor detects this frequency signal through built-in piezoelectric elements, and after processing by the internal microprocessor and intelligent converter, it can accurately calculate the instantaneous and cumulative flow rate of the fluid, and output a standard signal. |
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Nominal Diameter Range |
Standard: Full-bore type DN15~DN400 |
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Wetted Parts Material |
304 Stainless Steel |
|
Connection Method |
Clamp type |
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Maximum Measurement Error |
Liquid: ±0.5% ±1.0% ±1.5% |
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Measurement Range |
Liquid: 0.2-690000 m³/h |
|
Maximum Process Pressure |
Standard pressure grade ≤2.5MPa~4.0MPa |
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Medium Temperature Range |
Standard range: -40~+250℃~350℃ |
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Ambient Temperature Range |
Non-explosion-proof location -40~+55℃ |
|
Transmitter Housing Material |
Aluminum alloy shell |
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Display/Operation |
Instantaneous flow, cumulative flow, flow unit, flow percentage, etc. |
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Inputs |
0 |
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Outputs |
Frequency/pulse output: 2~3000Hz, low level ≤1V, high level ≥5V |
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Power Supply |
Pulse: 12VDC~+24VDC |
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Certificate |
0 |
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Functional Safety |
Ex ia IIC T1~T4 Ga |










