The ultrasonic water meter is a high-accuracy electronic flow meter leveraging the ultrasonic time-of-flight principle. It determines flow velocity by measuring the propagation time disparity of ultrasonic waves in the fluid. Contrasting with conventional mechanical water meters, its notable advantages include: absence of moving mechanical components, broad turndown ratio, negligible pressure drop, superior precision, and extended operational life. It is particularly well-suited for intelligent water management systems, industrial metering applications, and district-level leakage monitoring.
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: Unobstructed straight-through design (negligible pressure drop).
Electronic Unit: Handles signal processing, flow calculation, data storage, and communication.
Display Module: LCD screen displays flow rate, cumulative usage, alarm messages, etc.
(2) Working Principle
Measures the time difference (ΔT) of ultrasonic wave propagation in downstream and upstream directions, then computes flow velocity and volume using 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) division, leak detection, and non-revenue water management.
Industrial Recirculation Water: High-precision measurement for chemical, power, and metallurgy industries.
HVAC Systems: Energy metering for chilled/hot water in air conditioning setups.
Agricultural Irrigation: High-flow measurement for water with impurities (requires anti-clogging features).
Address: Xiao'anzi Industrial Park, Baishabu Town, Lanshan District, Linyi City, Shandong Province
Call us now:+86 15562945993
Email: ivy@sdchenshuo.cn
Shandong Chenshuo Instrument Co., Ltd.
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