LEDAER LZ Series
Metal Tube Variable Area Flow Meter: Robust & Reliable Measurement for Harsh Environments
📌 Overview
The Ledaer LZ Series is a high-performance variable area flow meter designed for measuring the volume flow of liquids and gases in small to medium pipe diameters[cite: 712]. Featuring a rugged all-metal construction, it is engineered to operate reliably under extreme temperatures, high pressures, and corrosive conditions where plastic or glass tubes would fail[cite: 713].
✨ Key Advantages
Exceptional Durability
Solid metal structure resistant to pressures up to 32 MPa and temperatures up to 450°C[cite: 715].
Low Installation Needs
Requires minimal straight pipe runs, making it ideal for compact skids and tight spaces.
Versatile Fluid Compatibility
Excellent for measuring low-velocity fluids with a standard turndown ratio of 10:1[cite: 717].
Flexible Monitoring
Supports local mechanical indication, 4-20mA output, HART, and limit switch alarms.
📋 Technical Specifications
| Parameter [cite: 719] | Details [cite: 719] |
|---|---|
| Pipe Diameter | DN15 – DN150 (Specialized sizes available) |
| Accuracy | Standard: Class 1.5; Specialized: Class 1.0 |
| Pressure Rating | Standard 1.6 – 4.0 MPa (Custom up to 32 MPa) |
| Medium Temp | Standard: -40°C to +100°C (High Temp: up to 450°C) |
| Wetted Materials | SS304, SS316L, PTFE Lining, Titanium, Hastelloy |
| Power Supply | 24V DC (2-wire), 220V AC, or Battery Powered (3.6V) |
| Protection / Ex | IP65/68; Exia II CT4-6, Exdb II CT6Gb |
🏭 Ideal Applications
Corrosive chemicals, solvents, and high-pressure gases[cite: 721].
Monitoring of lubrication oils and fuel lines[cite: 722].
Chemical dosing and small-scale water distribution[cite: 723].
Precise control of low-flow gas and liquid feeds[cite: 724].
Precision Selection for Your Process
Choose PTFE lining (F) for strong acids or Titanium (T) for aggressive salts.
Modular design supports Vertical (bottom-in, top-out) or Horizontal installation[cite: 727].
From basic local indicators to digital displays with RS-485 or HART protocols[cite: 729].
Proven Performance in High-Pressure & Corrosive Industrial Applications.
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