Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of digital turbine flow meter in China. Welcome to buy high quality digital turbine flow meter at competitive price from our factory. We also accept customized orders.
The HNF20-B Intelligent Industrial Grade Turbine Flow Sensor is a high-precision, robust flow measurement solution designed for demanding industrial environments. It delivers exceptional accuracy, with typical nonlinearity, hysteresis, and repeatability within ≤±0.5% FS, ensuring reliable performance in critical applications such as chemical production, liquid distribution, pump protection, and circulating water systems.
Engineered for versatility, the sensor supports multiple output signals including standard 4–20 mA analog, pulse, HART, and RS485 communication, enabling seamless integration with PLCs and control systems. Its all-digital signal processing provides strong anti-interference capability and fast response times (<30 ms). The device features an intuitive LED display for instantaneous flow reading and totalization, allowing for easy on-site monitoring without additional instrumentation.
Built to withstand harsh conditions, the HNF20-B boasts a stainless steel body, stainless steel impeller, and a cast aluminum alloy electrical enclosure with IP65 protection. It is certified for explosive hazardous environments (Exd IICT6) and can handle working pressures up to 200 bar. The sensor operates reliably across a wide temperature range (-20 ℃ to 120 ℃) and is suitable for low-viscosity media like water and oils (up to 50 cSt).
Available in a comprehensive pipe diameter range from DN4 to DN300, it offers flexible installation with threaded or flange connections. With its combination of high accuracy, robust construction, multiple output options, and industrial-grade certifications, the HNF20-B is the ideal choice for engineers seeking a dependable, high-performance flow sensor for precision measurement and process control.
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HNF20-B Turbine Flow Meter Parameters |
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Specific Parameters |
Value / Description |
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Measurement Principle |
The core working principle of the liquid turbine flow meter is to use the kinetic energy of the fluid to drive the turbine to rotate, converting the volumetric flow rate into a measurable electrical signal. It belongs to the velocity type flow meter and is suitable for measuring clean, low-viscosity single-phase liquids. |
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Nominal Diameter Range |
DN 4 to 300 (0.04m³/h to 1800m³/h) |
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Wetted Parts Material |
Main body material: 304, 316 stainless steel, |
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Connection Method |
Internal thread: DN4～DN80; |
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Maximum Measurement Error |
Volumetric flow rate (standard operating conditions): ±0.5% reading ± 1 mm/s (0.04 in/s) |
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Measurement Range |
0.04 m³/h to 1000 m³/h, 1:10/20 |
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Maximum Process Pressure |
40 MPa |
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Medium Temperature Range |
-40 ~ +120 °C (-40 ~ 248 °F) |
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Ambient Temperature Range |
–40 to +60 °C (–40 to +140 °F) |
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Transmitter Housing Material |
Cast aluminum alloy AlSi10Mg (with coating); |
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Display/Operation |
Four-line backlit display with touch function (external operation possible) |
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Inputs |
Analog input, digital input |
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Outputs |
4-20 mA (active/passive) |
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Power Supply |
DC 24V or 3.6V battery |
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Certificate |
CE certified |
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Functional Safety |
Complies with IEC 61508 standard, allowing use in safety applications specified in IEC 61511 standard |