HN-050 Metal Tube Variable-Area Flowmeter
HONZEN INSTRUMENTS · HN-050
HN-050 Metal Tube Variable-Area Flowmeter
Uses a tapered tube and float to measure liquid or gas flow by the variable-area principle, with local indication and remote-output options.

Overview
Uses a tapered tube and float to measure liquid or gas flow by the variable-area principle, with local indication and remote-output options.
Key Features
- Uses the float-type variable-area principle.
- Flow can be read at the installation point.
- Remote signal output is available as an option.
Technical Specifications
| Parameter | Catalogue value |
|---|---|
| Measuring range | Water at 20 °C: 6–150000 L/h; air at 101.3 kPa and 20 °C: 0.05–4000 m³/h |
| Turndown | 10:1 (special type: 20:1) |
| Accuracy | Class 1.5 or 1.0 |
| Pressure | DN15–DN50: PN 4.0 MPa standard; DN80–DN100: PN 1.6 MPa standard |
| Temperature | Standard: −80 to +220 °C; high-temperature: 400 °C; PTFE-lined: ≤85 °C |
| Output signal | Two-wire 4–20 mA (electrical version) |
| Power supply | DC 24 V standard; AC 220 V option |
| Process connection | DIN 2501 flange standard; DIN 11851 thread option |
| Ingress protection | IP65 |
| Hazardous-area option | Ex ia IIC T3–T6 or Ex d IIB T3–T6 option |
Applications
Liquid and gas measurement in petroleum, chemicals, power, pharmaceuticals, food and water treatment.
Model Selection / Ordering Information
Please provide medium, pipe size, flow range, operating pressure and temperature, installation, required output and hazardous-area requirements. Confirm options against the actual process conditions.
Request a Quote
Technical data: supplied Anhui Huining flowmeter catalogue, PDF spread 8R–9R. Hazardous-area ratings, materials and configurations are catalogue options; confirm the final selected model and its documents.
