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.
Water Treatment
Flow monitoring for purified water, process water, cooling water and circulation systems.
Chemical Processing
Accurate measurement of chemicals, solvents and low-viscosity liquids in production processes.
Oil & Fuel Systems
Suitable for hydraulic oil, lubricating oil, diesel and other liquids with viscosity close to water.
Pump & Dosing Equipment
Provides real-time flow feedback for pump protection, dosing control and distribution systems.
Food & Beverage
Used for liquid transfer, filtration and process monitoring where stable flow measurement is required.
Industrial Automation
Integrated with PLC, DCS and SCADA systems for process control and flow monitoring.
Why Choose HNF20-B
High Measurement AccuracyAccuracy up to ±0.5%
Repeatability up to ±0.1%Fast ResponseRapidly detects flow changes, response time <2s.Wide Size RangeA complete range from DN4 to DN300 to meet the needs of various industrial applications.Multiple Signal OutputsSupports pulse, 4-20mA, HART, and RS485 communication.Durable Stainless Steel ConstructionRugged stainless steel components in contact with the medium, IP65 protection rating.Easy System IntegrationCompatible with automation, monitoring, and control systems.
| Parameter | Specification |
|---|---|
| Measuring Principle | Turbine Flow Measurement |
| Medium | Water, Oil & Low-Viscosity Liquids |
| Pipe Size | DN4–DN300 |
| Accuracy | ±0.5% FS / ±1.0% FS |
| Pressure Rating | Up to 200 bar |
| Output | Pulse, 4-20mA, HART, RS485 |
| HNF20-B Turbine Flow Meter Parameters | |
| Specific Parameters | Value / Description |
| 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. |
| Nominal Diameter Range | DN 4 to 300 (0.04m³/h to 1800m³/h) |
| Wetted Parts Material | Main body material: 304, 316 stainless steel, Impeller material: 430F, duplex steel |
| Connection Method | Internal thread: DN4～DN80; External thread: DN4～DN40; Flange connection: DN10～300; Sanitary clamp connection: DN4～DN100 (DN4～DN32 all use 50.5 chuck) |
| Maximum Measurement Error | Volumetric flow rate (standard operating conditions): ±0.5% reading ± 1 mm/s (0.04 in/s) |
| Measurement Range | 0.04 m³/h to 1000 m³/h, 1:10/20 |
| Maximum Process Pressure | 40 MPa |
| Medium Temperature Range | -40 ~ +120 °C (-40 ~ 248 °F) |
| Ambient Temperature Range | –40 to +60 °C (–40 to +140 °F) |
| Transmitter Housing Material | Cast aluminum alloy AlSi10Mg (with coating); Stainless steel 1.4409 (model CF3M, performance similar to 316L); Stainless steel for sanitary transmitters |
| Display/Operation | Four-line backlit display with touch function (external operation possible) Supports configuration settings via local display and operating tools Optional remote display function |
| Inputs | Analog input, digital input |
| Outputs | 4-20 mA (active/passive) 4-20 mA with HART protocol (active/passive) 4-20 mA with wireless HART Protocol 4-20 mA with RS485 Pulse/Frequency/Switch Output (Active/Passive) |
| Power Supply | DC 24V or 3.6V battery |
| Certificate | CE certified |
| Functional Safety | Complies with IEC 61508 standard, allowing use in safety applications specified in IEC 61511 standard |
