The ultrasonic water meter is a high-precision electronic water meter based on the ultrasonic time-of-flight principle. It calculates flow rate by measuring the propagation time difference of ultrasonic waves in the fluid. Compared with traditional mechanical water meters, it offers significant advantages including: no moving mechanical parts, wide turndown ratio, minimal pressure loss, high accuracy, and long service life. It is ideally suited for smart water systems, industrial metering, and district leakage monitoring applications.
High Accuracy: ±1% to ±2% error, significantly better than mechanical meters (±2% to ±5%).
No Moving Parts: Wear-free design with a lifespan exceeding 15 years.
Wide Turndown Ratio (100:1 to 400:1): Accurately measures both minimal flows (e.g., dripping) and large flows.
Zero Pressure Loss: Straight-through structure avoids impacting pipeline pressure.
Smart Features: Supports remote meter reading, leak monitoring, and cloud-based data management.
Key Technical Specifications
Basic Parameters
| Parameter | DN15-DN40 (Small Bore) | DN50-DN200 (Medium/Large Bore) | Remarks |
| Nominal Diameter (DN) | 15～40mm | 50～200mm | Flange/Thread Connection
|
| Measurement Principle | Ultrasonic Time-of-Flight | Ultrasonic Time-of-Flight | No Mechanical Impeller |
| Turndown Ratio （Q₃/Q₁） | 160:1～250:1 | 160:1～400:1 | (Mechanical Meters: Typically 80:1) |
| Accuracy Class | Class 2 | Class 2 | ±2% Error |
| Operating Temperature | 0.1-50°C (Cold Water) | 0.1-90°C (Hot Water Option) | High-Temp Models Customizable
|
| Operating Pressure | ≤1.6 MPa | ≤1.6 MPa | Higher pressure ratings available (customizable) |
| Pressure Loss | ≤0.15 MPa | ≤0.05 MPa | Low Pressure Drop |
| Ingress Protection (IP) Rating | IP68 | IP68 | Submersible Installation
|
Product Structure & Working Principle
(1) Structural Components
Ultrasonic Sensors: One or multiple pairs of transducers for transmitting/receiving ultrasonic signals.
Measuring Pipe Section: Straight-through design with no flow obstruction (extremely low pressure loss).
Electronic Unit: Handles signal processing, flow calculation, data storage, and communication.
Display Module: LCD screen showing flow rate, total consumption, alarm information, etc.
(2) Working Principle
Measures the time difference (ΔT) of ultrasonic wave propagation in downstream and upstream directions, then calculates flow velocity and volume based on pipe cross-sectional area:
Flow Rate Q = K × (T₁⁻¹ – T₂⁻¹) × A
(K: Calibration coefficient; A: Pipe cross-sectional area)
Applications
Smart Water Systems: DMA (District Metering Area) zoning, leak detection, and loss control.
Industrial Recirculation Water: High-precision measurement for chemical, power, and metallurgy industries.
HVAC Systems: Energy billing for chilled/hot water in air conditioning systems.
Agricultural Irrigation: Large-flow measurement for water containing impurities (requires anti-clogging design).
Address: Xiao'anzi Industrial Park, Baishabu Town, Lanshan District, Linyi City, Shandong Province
Call us now:+861556294599
Email: ivy@sdchenshuo.cn
Shandong Chenshuo Instrument Co., Ltd.
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