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LUDC/S Micro‑Bore Vortex Flow Meter: The Ideal Solution for Small‑Pipe Flow Measurement

LUDC/S Series Small Diameter Vortex Flow Meter | High Precision for Liquids & Gases DN8–DN15

Meta Description

LUDC/S micro‑bore vortex flow meter for DN8/12/15 small pipes. Measures liquids & gases, 4–20mA + RS485/Modbus, 316SS, IP65, low pressure loss. Ideal for precision industrial flow monitoring.


1. Introduction

For small‑diameter pipeline flow measurement, traditional meters often face issues like large pressure loss, poor low‑flow sensitivity, and unsuitable dimensions. The LUDC/S Series Micro‑Bore Intelligent Vortex Flow Meter from Suzhou Beite Smart Instrument solves these pain points. Designed for DN8, DN12, DN15 small pipes, it delivers stable, accurate flow measurement for both liquids and gases with long‑term reliability.

2. Working Principle

Based on the von Kármán vortex street principle, the meter uses a piezoelectric stress sensor to detect vortex frequency, which is directly proportional to flow velocity. The meter converts frequency into standard output signals, nearly unaffected by fluid density, pressure, temperature, or viscosity. With no moving parts, it ensures high stability and minimal maintenance.

3. Core Advantages

  • Ultra‑small bore support: DN8 / DN12 / DN15, perfect for compact systems
  • Wide media compatibility: Measures liquids and gases
  • Dual output options: 4–20mA analog + RS485 (Modbus‑RTU) for PLC/SCADA
  • Premium material: 316 stainless steel body, corrosion‑resistant
  • High protection: IP65, suitable for harsh industrial environments
  • Low pressure loss: Optimized flow path reduces energy consumption
  • Local display: Shows instantaneous flow, total flow, velocity, temperature, current

4. Key Specifications

ItemSpecification
Nominal DiameterDN8, DN12, DN15
Connection1/2" NPT male thread
MediumLiquids, Gases
Medium Temp-10°C to +80°C
Ambient Temp-20°C to +45°C
Accuracy±1.5% F.S.
Power SupplyDC 24V
Pressure Rating1.6 MPa (standard)
Output4–20mA (isolated, max load 500Ω) / RS485
Housing316 Stainless Steel
ProtectionIP65

5. Flow Rate Range

  • Liquids:DN8: 80–1000 L/hDN12: 150–2000 L/hDN15: 250–3000 L/h
  • Gases:DN8: 0.8–8 Nm³/hDN12: 2–20 Nm³/hDN15: 3–30 Nm³/h

6. Typical Applications

  • Compressed air monitoring
  • Gas mixing & dosing systems
  • Small liquid dosing & lubrication systems
  • Precision cooling circuits
  • Medical & analytical instruments
  • Laboratory & test equipment
  • Small boiler & heat exchange systems

7. Why Choose LUDC/S from Suzhou Beite?

  • Tailored for small pipes: Solves low‑flow inaccuracy in DN8–DN15 lines
  • Intelligent digital design: Local display + remote communication
  • Stable & maintenance‑free: No moving parts, long‑term stable K‑factor
  • Easy integration: 4–20mA + RS485/Modbus, plug‑and‑play
  • CE/ISO compliant: Reliable quality for global industrial users

8. Conclusion

The LUDC/S Series Small Diameter Vortex Flow Meter is the preferred choice for accurate, stable flow measurement in small‑bore pipelines. Whether for liquid or gas, industrial or precision equipment, it provides consistent performance and easy system integration.

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