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Ultrasonic Water Meter-DN80

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.

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ADVANTAGE

High Precision:

With an error margin of ±1% to ±2%, it outperforms mechanical meters (which have an error rate of ±2% to ±5%) by a significant margin.

Non-Mechanical Design:

Featuring a wear-resistant structure, its service life exceeds 15 years, eliminating the need for moving parts.

Wide Turndown Ratio (100:1 to 400:1):

Capable of accurately measuring both minimal flows (such as water dripping) and high-volume flows with precision.

Zero Pressure Drop:

The straight-through pipeline design ensures no impact on system pressure, maintaining unobstructed fluid flow.

Intelligent Functions:

Supports remote meter reading, leakage detection, and cloud-based data management for enhanced operational efficiency.

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).

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