For South African municipalities, water service authorities (WSAs), and engineering partners, the challenge is stark: nearly half of all treated water never reaches the billable consumer.
According to Water and Sanitation Minister Pemmy Majodina, South Africa’s non-revenue water (NRW) stands at a staggering 47.3% nationally as of June 2024, equivalent to 2,121,347,794 kilolitres per annum. This translates to approximately R26 billion in annual revenue losses—a burden that falls squarely on municipal budgets and ultimately on ratepayers.
These losses are primarily driven by ageing infrastructure, pipe leaks (40.8%), illegal connections, and poor municipal maintenance. In municipalities like Durban, NRW is estimated at 58%, while Johannesburg faces 48.2%. The crisis is not a shortage of bulk water but a crisis of management—and metering is at the heart of the solution.
Tengyue Metering offers a proven solution for this challenge: the TS14W Ultrasonic Smart Water Meter. Purpose-built to meet the demands of the South African water sector, the TS14W delivers the accuracy, durability, and intelligence needed to tackle NRW head-on.
Tengyue Metering has already demonstrated its commitment to the South African market through successful deployments of prepaid smart water meters in cities including Durban, where the technology has improved billing efficiency, detected leaks in real time, and reduced water theft.
Core Metering Performance: Precision That Detects Every Drop
For technical and procurement decision-makers, accuracy and long-term reliability are non-negotiable. The Tengyue Metering TS14W delivers performance that directly addresses South Africa’s NRW challenges:
Industry-Leading R800 Range Ratio
The TS14W achieves an R800 turndown ratio (Accuracy Class 2), maintaining high precision across an exceptionally wide flow range—from extremely low nighttime flows (critical for leak detection) to peak demand periods.
While many municipal tenders specify R250 as a baseline, the TS14W’s R800 capability goes far beyond to ensure that even the smallest leaks—as low as 2–3 litres per hour—are detected. This is essential for effective District Metered Area (DMA) management and significantly reducing NRW.
Solid-State Ultrasonic Technology with Zero Wear
Utilizing advanced ultrasonic transit-time measurement, the TS14W has no moving parts. This eliminates the mechanical wear, fouling, and pressure loss inherent to turbine or positive displacement meters. The result is sustained accuracy over its entire service life—16 to 20 years compared to only 8 to 10 years for mechanical meters —drastically reducing the need for costly recalibration, repairs, and parts replacement. This is particularly valuable in municipalities where maintenance resources are constrained.
Designed for South African Installation Conditions
The TS14W meets IP68 ingress protection, ensuring reliable operation even in meter pits prone to submersion or flooding. It supports both horizontal and vertical orientations, simplifying retrofits and new installations. Its brass construction and wide temperature range (T30 to T90) ensure compatibility with diverse water qualities and supply conditions across South Africa.
Compliance and Certifications: Meeting South African and International Standards
For utilities and system integrators, certified compliance is the baseline for any major project. The Tengyue Metering TS14W holds key international approvals that align with South African regulatory frameworks:
OIML R49 Certification and SABS 1529 Alignment
OIML R49 is the internationally recognized benchmark for meter accuracy, performance stability, and legal compliance. Critically, South Africa’s SABS 1529 standard for water meters is directly based on OIML R49.
Furthermore, the South African Trade Metrology Act requires water meters of sizes 15 to 800 mm to comply with the requirements of SANS 1529 (the South African adoption of SABS 1529), and mandates that municipalities ensure all meters under their control are kept in a verifiable condition at all times.
This makes the TS14W’s OIML R49 certification a direct indicator of suitability for municipal applications and tender compliance across South Africa.
Additional Certifications
MID and WRAS Certifications: While originally for European markets, holding these approvals demonstrates the TS14W’s adherence to some of the world’s most stringent metrology and material safety standards, further validating the quality and reliability you expect from Tengyue Metering.
This robust compliance portfolio lowers your procurement risk and streamlines the approval process for projects of any scale.
Smart Connectivity and Lifecycle Value: The Key to Smarter Water Management
The true value of a smart meter lies not just in its measurement, but in its data and its total cost of ownership (TCO). The Tengyue Metering TS14W ultrasonic water meter is engineered to maximize both:
Flexible Communication for South African Networks
The TS14W ultrasonic water meter supports the communication protocols essential for South African utility networks, including:
LoRaWAN (optimized for the local 868 MHz ISM band) —This is ideal for South African conditions, offering up to 2–5 km range in urban environments and up to 15 km in suburban areas.
Wireless M-Bus
NB-IoT
This ensures seamless integration into existing or future Advanced Metering Infrastructure (AMI) and SCADA systems, enabling remote reads, real-time monitoring, and automated alerts—eliminating manual readings and enabling proactive system management. Municipal RFQs increasingly require LoRaWAN-enabled meters with AMI integration capabilities.
Real-Time Alarms and Leak Detection
The TS14W ultrasonic water meter can be configured to send instant alerts for:
Leaks
Reverse flow
Empty pipe
Tampering attempts
These intelligent alarms enable municipalities to transition from reactive maintenance to active, data-driven network management.
Industry-Leading Up to 30-Year Battery Life
With a default configuration that provides a battery life of up to 16 years (and up to 30 years in optimized configurations), the TS14W virtually matches or exceeds the operational lifespan of the meter itself. Municipal tenders often specify a minimum of 6–15 years battery life —the TS14W exceeds these requirements significantly.
This drastically reduces the maintenance, labour, and service disruption costs associated with battery replacements, delivering a compelling lowest TCO over the meter’s lifecycle.
Clear Local Display
A 9-character local LCD (including digits and symbols) allows for easy on-site reading, configuration, and troubleshooting, providing flexibility for field operations.
Invest in Certainty with the Tengyue Metering Ультразвуковой счетчик воды TS14W
For South African municipalities and engineering partners, the Tengyue Metering Ультразвуковой счетчик воды TS14W represents a strategic investment in measurable accuracy, verifiable compliance (SABS 1529), and a demonstrably lower total cost of ownership. It is a solution proven to address the critical challenges of non-revenue water, with a track record of successful deployment in South Africa, including projects in Durban and other municipalities.
The TS14W is more than a water meter; it is a foundational component for building a more efficient, data-driven, and financially sustainable water utility for South Africa.