The Endress+Hauser Promag W 300 is an industrial-grade Electromagnetic Flowmeter designed for high-accuracy volumetric flow measurement of conductive liquids within water management networks and industrial utility lines. While plants looking for direct mass or density tracking often source a high-end Coriolis Flowmeter, this specialized electromagnetic sensor serves as the most cost-effective, high-reliability fluid monitoring solution for large-scale volumetric municipal water supply infrastructures. Operating on Faraday's law of electromagnetic induction, this specialized inline sensor serves as a high-reliability fluid monitoring solution, particularly for municipal water supply infrastructures and extensive wastewater piping systems. Its advanced sensor design ensures stable long-term volume tracking even under restrictive physical layout conditions.
The following technical data details the comprehensive physical boundaries, error thresholds, material configurations, and communicative capabilities of the Promag W 300 industrial inline metering platform:
| Technical Feature | Certified Operational Data & Material Specs |
|---|---|
| Available Nominal Diameters | DN 25 up to DN 3000 (Equivalent to 1" through 120" pipe sizes) |
| Maximum Volume Measurement Error | Standard Calibration: ±0.5% of the actual measured value |
| Internal Pipeline Liner Options | Polyurethane polymer, Hard Rubber compounds, or PTFE (Fluoropolymer) |
| Industrial Digital Connectivity | PROFINET, EtherNet/IP, Modbus, HART protocol, and integrated WLAN |
| Potable Water & Safety Approvals | International compliance: NSF 61, WRAS, KTW-BWGL regulatory standards |
| Hazardous Area & Safety Ratings | ATEX explosion-proof certification, SIL 2 and SIL 3 safety integrity loops |
| Device Integrity Verification | Continuous diagnostic monitoring via proprietary Heartbeat Technology |
Sourcing Note: For non-conductive fluids, superheated steam, or high-velocity gases where standard magnetic meters cannot operate, engineers typically transition to a heavy-duty Vortex Flowmeter. Alternatively, for non-invasive, external clamp-on measurement on existing live grids, browsing our comprehensive Ultrasonic Flow Meter range is highly recommended to avoid any line cutting.
The robust construction and certified compliance profile of the Promag W 300 make it highly suited for specialized target environments:
Municipal Water Distribution: Engineered directly for raw water sourcing, main distribution networks, and high-volume utility billing pipelines.
Drinking Water Networks: Fully validated for clean water grids due to strict material tracking that complies with food and beverage safety mandates.
Wastewater Treatment Systems: Capable of handling industrial effluent and sewage discharge when paired with abrasion-resistant liner options.
Compatible Process Media: Designed exclusively for conductive process liquids, including chlorinated water, untreated surface water, and variable-pH industrial wastewater.
Traditional flow monitoring devices require long, straight stretches of undisturbed piping to smooth out fluid turbulence. The Promag W 300 features a unique 0 x DN full-bore mechanical option, which completely eliminates the need for straight pipe runs before or after the installation point. Even when bolted directly next to pipe bends or line transitions, the meter maintains full operational performance, allowing systems engineers to build extremely tight, space-saving plant layouts.
Material safety is paramount in public infrastructure. The internal components of this sensor are manufactured and proven to comply with strict international drinking water mandates, including NSF 61 and WRAS. This ensures that the meter never leaches harmful compounds into public drinking grids.
To eliminate costly plant shutdowns and manual calibration routines, the device features built-in Heartbeat Technology. This electronic subsystem executes continuous internal device health checks and generates fully traceable verification reporting compliant with ISO 9001 standards—all while the process liquid keeps moving through the pipeline.
Field technicians no longer need to physically open the transmitter housing to adjust settings or download logs. An integrated secure WLAN interface and built-in web server allow full instrument configuration, parameter adjustments, and troubleshooting directly from any mobile device or laptop in the field.
In comprehensive multi-variable process loops, flow monitoring is only one piece of the puzzle. Managing total pipeline integrity and avoiding water hammer or tank overflows requires feeding data to reliable Pressure Transmitters and precise industrial Level Meters to form a fully synchronized control network.
A public water authority required the installation of a massive DN 1200 primary water main flowmeter. The available integration site was limited to a highly compact underground concrete chamber, crowded with multiple sharp pipe bends that typically destroy flow measurement accuracy.
We delivered the specialized Promag W 300 featuring the proprietary 0 x DN structural configuration, allowing direct bolting into the tight bend cluster without adding auxiliary pipe extensions.
Infrastructure Cost Savings: The municipal plant successfully avoided over $20,000 in heavy structural modification and excavation costs by using the zero-pipe-run technology.
Sustained Precision: The system maintains a constant ±0.5% accuracy across variable flow velocities despite the highly complex layout.
Need custom material verification, specialized calibration certificates, or global project sourcing? Before purchasing, you can read about our rigorous MRO supply standards and technical verification framework on our Why Choose Us hub, or contact our engineering team directly for wholesale project quotes.
Answer: The Promag W 300 features a unique 0 x DN full-bore design option, which completely eliminates the traditional minimum straight pipe requirement. It can be installed directly after pipe bends, T-pieces, or valves without losing its standard accuracy, making it ideal for tight underground water chambers.
Answer: Yes. With its flexible internal pipeline liner options, including Polyurethane, Hard Rubber, and PTFE (Fluoropolymer), the Promag W 300 can be customized to resist both chemical corrosion and mechanical abrasion common in industrial effluent and municipal sewage discharge systems.
Answer: No. Thanks to built-in Heartbeat Technology, the Promag W 300 performs continuous internal self-diagnostics and generates fully traceable verification reports compliant with ISO 9001. This allows for in-situ device verification without any process interruptions or plant shutdowns.
Answer: Yes, the device is fully compliant with leading international regulatory standards for potable water. Its materials and internal liners are officially certified under NSF 61, WRAS, and KTW-BWGL, ensuring complete safety in municipal drinking water distribution networks.
Answer: The Promag W 300 electromagnetic flowmeter supports a highly versatile range of nominal diameters, ranging from small DN 25 (1") process lines up to massive DN 3000 (120") primary water mains.
Answer: The transmitter comes with an integrated secure WLAN interface and a built-in web server. Field engineers can safely configure parameters, troubleshoot errors, and download compliance logs wirelessly via any mobile device or laptop without opening the housing.
