Pipeline Leakage Detection and DMA District Metering System Solution

DMA-based water distribution network leakage detection and precision location system to reduce non-revenue water

Overview

Summary

DMA-based water distribution network leakage detection and precision location system to reduce non-revenue water

Key Advantages

DMA zone delineation and boundary flow monitoring

Automatic Minimum Night Flow (MNF) analysis and leakage assessment

Pressure zone management and burst pipe early warning

Leakage heat map visualization and repair prioritization

Data fusion with GIS/SCADA/billing systems

Non-revenue water analysis and automated KPI reporting

Challenges

Average urban water network leakage rate exceeds 14%, with some old districts over 30%
Traditional manual leak detection is inefficient with poor accuracy for underground leaks
Complex network topology and diverse pipe materials lack fine-grained management tools
Minimum Night Flow analysis is affected by user consumption patterns causing assessment bias
Leak detection data is siloed from GIS, SCADA, and billing systems

Results

86 DMA zones established reducing leakage from 22% to 11%, saving 8M tons annually
42 hidden leaks located and repaired within 3 months through MNF analysis
18-month ROI with over ¥20M annual water savings for a provincial capital city project
75% reduction in pipe burst incidents through precise pressure management
200% improvement in leakage management efficiency through DMA-GIS-SCADA integration

Solution Details

Policy Background for Pipeline Leakage Detection and DMA Systems

Non-revenue water (NRW) remains one of the biggest challenges for water utilities worldwide. The International Water Association (IWA) recognizes DMA (District Metered Area) management as the most effective approach to leakage control. China has set a national target of reducing urban water network leakage below 9% by 2025.

Technical Highlights: Intelligent MNF Analysis and Precision Leak Location

Ecolor's DMA metering system uses high-precision LGF electromagnetic flowmeters with Hero V9 RTU terminals for real-time boundary flow and pressure monitoring. Built-in MNF algorithms automatically establish baseline night consumption for each DMA and evaluate leakage volumes. Hierarchical DMA analysis narrows leak locations to within 50 meters.

Key Features of the DMA District Metering System

DMA zone delineation and boundary flow monitoring
Automatic Minimum Night Flow (MNF) analysis and leakage assessment
Pressure zone management and burst pipe early warning
Leakage heat map visualization and repair prioritization
Data fusion with GIS/SCADA/billing systems
Non-revenue water analysis and automated KPI reporting

Application Scenarios for Leakage Detection Solutions

Urban water utility NRW reduction, new network DMA construction, old network retrofit assessment, and industrial park internal network management.

System Architecture of the Pipeline Leakage Detection Solution

Four-layer architecture: metering terminals (flowmeters + pressure sensors + RTU); transmission (4G/NB-IoT/Ethernet); management platform (data aggregation, MNF analysis, GIS display); business applications (leak investigation, KPI reports, pressure management).

Leak Location Precision

Within 50 meters

Target Leakage Rate

Below 9% (China 2025 Goal)

Core Technology

MNF Algorithm & Hierarchical Analysis