In basic municipal water distribution networks and commercial irrigation systems, capturing accurate volumetric data during low-demand periods is a constant challenge. The KROHNE WATERFLUX 3050 is a highly efficient flanged electromagnetic flowmeter purposely designed to capture low-velocity fluids where traditional full-bore circular meters struggle.
By leveraging a unique rectangular reduced cross-section sensor geometry, the device mechanically conditions and optimizes the velocity profile of the moving fluid. This design forces the liquid closer to the measuring electrodes, accelerating the medium natively and enabling a dynamic 1000:1 turndown ratio. It serves as an excellent solid-state mechanical water meter replacement that will not suffer from internal mechanical wear, zero pressure loss penalties, or clogging from suspended sediment.
For facilities managing extensive piping layouts where secondary multivariable thermal energy indexing or steam headers must be balanced alongside basic water extraction, integrating a compact [Rosemount 3051SFC Conditioning Orifice Flow Meter] delivers an uncompromised plant engineering configuration.
Densely packed pump skids and subterranean piping pits rarely offer enough footprint for lengthy straight pipe headers. The WATERFLUX 3050 overcomes these physical bottlenecks directly through its specialized flow-profile design:
No Inlet/Outlet Pipe Runs Needed: Engineered to be practically immune to upstream hydraulic turbulence, it supports a true 0D/0D straight run installation. You can bolt the meter directly behind a 90-degree bend, a slide valve, or a pipe reduction without experiencing signal drift or calibration offset.
Tropicalized Flood Protection: The field-mounted converter housing receives extra electrical component isolation coatings. This tropicalized architecture safeguards internal circuit boards against extreme humidity, making it perfectly suited for deep measurement chambers with high chances of flooding.
Global Marine Approvals: Holding type certifications from major maritime bodies including DNV, ABS, LR, and CCS, it is fully qualified for on-board ballast loops. For high-salinity marine environments, matching your pipeline with a [Rosemount 3051S In-Line Pressure Transmitter] helps maintain a comprehensive structural diagnostic overview.
Public health parameters demand uncompromised material purity in municipal drinking lines. The WATERFLUX 3050 sensor tube is internally coated with a premium Rilsan (Polyamide Polymer 11) liner. This specialized bio-sourced coating features an incredibly smooth surface that actively prevents the accumulation of scale, biofilm, or fats. It carries a complete list of major international potable water standards, including ACS, DVGW, NSF, TZW, KTW, and WRAS, ensuring total legal compliance across public utility networks.
| Parameter | Specification Detail |
| Measurement Principle | Electromagnetic (Inductive tracking) |
| Product Positioning | Cost-effective volumetric meters for basic water utilities |
| Sensor Tube Geometry | Unique rectangular reduced cross-section for enhanced low-flow tracking |
| Turndown Dynamic Ratio | Wide dynamic scale up to 1000:1 |
| Straight Pipe Requirements | 0D Upstream / 0D Downstream (No straight runs required) |
| Mass Metric Alternative: | If your utility loop processes aggressive dosing chemicals requiring raw mass data rather than standard volumetric tracking, upgrade to [KROHNE OPTIMASS Coriolis Flowmeters]. |
| Component / Condition | Technical Data |
| Nominal Diameter Range | EN Flanges: DN25 to DN600 | ASME Flanges: 1 inch to 24 inches |
| Thread Connection Options | Male threads supporting G1, G1.5, and G2 sizes |
| Measuring Tube Liner | Polyamide Polymer 11 (Rilsan® coating) |
| Maximum Process Pressure | 16 barg / 230 psig |
| Process Temperature Range | -5°C to +70°C (+23°F to +158°F) |
| Output Communication Option | Description |
| Digital Output Protocols | Modbus RTU, HART® (Orients smoothly with SCADA telemetry units) |
| Analogue Loop Connections | Standard 4–20 mA current outputs |
| Discrete Hardware Signals | Configurable Pulse, Frequency, and Status alarms |
Flange vs. Thread Selection: Use male G-threads (G1 to G2) for low-flow auxiliary chemical feed skids or sub-metering loops. For municipal water mains, choose standard EN or ASME flanged versions spanning up to DN600.
Safety Loop Alert: The WATERFLUX 3050 is highly optimized for budget-conscious basic water applications. If your project layout manages hazardous chemical dosing loops or safety instrumented systems requiring active functional safety ratings, the safety-certified [KROHNE OPTIFLUX 4400 SIL 2/3 Flowmeter] must be deployed instead.
Gasket Concentricity: Although the 0D/0D engineering removes the need for straight pipe runs, ensure that the internal gaskets are centered perfectly during flange bolt tightening. A protruding gasket edge directly at the sensor entrance can generate severe asymmetrical fluid jets that disrupt electrode sensing fields.
Eliminating Air Pockets: Install the flowmeter on a lower section of the pipeline or on a vertical run with an upward flow direction. Avoid placing the device at the highest point of a piping network, as air pocket accumulation inside the rectangular tube will cause severe dry-pipe diagnostic alarms.
Grounding via Pipe Contact: Ensure the flowmeter sensor housing shares a common electrical potential with the process liquid. If installing within non-conductive plastic or lined piping, traditional grounding techniques or grounding electrodes must be properly integrated to isolate the microvolt signal from external stray earth currents.
Because the rectangular Rilsan-coated sensor contains no impellers, rotors, or bearings, the WATERFLUX 3050 exhibits zero mechanical wear and requires no periodic hardware teardowns.
To satisfy annual regulatory water authority audits or water balance reviews, field technicians do not need to cut pipe sections or interrupt active distribution pumps. Simply connect the handheld OPTICHECK service tool to the transmitter module. The tool performs an inline, in-situ health verification by testing core magnetic coil resistance, electrode baseline health, and electronic circuit drift against factory data. It generates an audit-ready compliance PDF while your water grid continues to run. For small secondary dosing lines where an electronic meter exceeds technical needs, the mechanical [KROHNE H250 M40 Rotameter] remains the ideal low-flow choice.
Q: Why does the WATERFLUX 3050 feature a unique rectangular sensor design?
A: The rectangular reduced cross-section of the sensor tube mechanically conditions the fluid velocity profile. It narrows the flow path and accelerates the liquid natively near the electrodes, enabling stable and reliable volumetric measurement even at extremely low flow rates.
Q: Can the WATERFLUX 3050 be installed directly behind pipe bends and valves?
A: Yes. Because the internal rectangular architecture optimizes the velocity profile and dampens fluid turbulence, the meter is completely independent of installation environment interferences. It allows for a true 0D upstream and 0D downstream installation without requiring any straight inlet or outlet runs.
Q: What are the primary advantages of the Rilsan liner coating?
A: The Polyamide Polymer 11 (Rilsan) liner provides excellent chemical stability and a smooth internal surface that resists scale and biofilm buildup. This makes it completely maintenance-free and fully compliant with major global drinking water certifications, including NSF, WRAS, and ACS.
Q: Is the WATERFLUX 3050 protected against high environmental humidity and flooding?
A: Yes. The transmitter electronics and housing features extra isolation barriers that protect components against moisture ingress. This makes the flowmeter exceptionally resilient in tropical climates, high-humidity environments, or buried applications prone to periodic flooding.
