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Ultrasonic Water Meter-DN32

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.

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ADVANTAGE

High Accuracy: ±1% to ±2% error, better than mechanical meters (±2% to ±5%).

No Moving Parts: Wear-resistant, lifespan >15 years.

Wide Turndown Ratio (100:1 to 400:1): Measures tiny (e.g., drips) and large flows accurately.

Zero Pressure Loss: Straight-through design doesn’t affect pipeline pressure.

Smart Features: Remote reading, leak monitoring, cloud 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 Elements

  • Ultrasonic Transducers: One or multiple transducer pairs for emitting and receiving ultrasonic waves.
  • Flow Measurement Tube: Unobstructed straight-through design (negligible pressure drop).
  • Electronics Module: Performs signal processing, flow computation, data storage, and communication.
  • Display Unit: LCD screen displays flow rate, cumulative usage, alarm messages, etc.

(2) Operational Principle

Measures the time delay (ΔT) of ultrasonic wave transmission in downstream and upstream paths, then computes flow velocity and volume using pipe cross-sectional area:
Flow Rate Q = K × (T₁⁻¹ – T₂⁻¹) × A
(K = calibration factor; A = pipe cross-sectional area)

Applications

  • Intelligent Water Management Systems: DMA (District Metering Area) division, leak detection, and non-revenue water management.
  • Industrial Water Recirculation: Precision flow measurement in chemical, power, and metallurgical sectors.
  • HVAC Systems: Energy metering for chilled/hot water in air conditioning setups.
  • Agricultural Irrigation: High-flow measurement of water with impurities (requires anti-clogging features).
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