Accurate flow measurement is the foundation of process control. We specify, size and integrate the right flow metre for every water and wastewater application.
CFD, P&ID, SCADA and commissioning for critical water treatment plants.
Plant layouts, piping isometrics and construction-ready engineering drawings.
Flow, mixing and thermal CFD across treatment and process equipment.
Full mechanical, physico-chemical, biological and sludge equipment range.
From raw water intake to final effluent discharge, flow data drives dosing calculations, detention time verification, and mass-balance closure.
Electromagnetic flowmeters with 4-20 mA output provide real-time flow data to the PLC. This enables flow-paced chemical dosing and automated equalisation management.
Properly sized equalisation tanks (6-12 hours at average flow) dampen hydraulic and organic shocks. Mixers prevent septicity while maintaining solids in suspension.
Variable frequency drives on inlet pumps match flow to treatment capacity. Soft-start reduces hydraulic shock and energy benefits reach 20-40% versus throttled operation.
Day-night flow variations of 3-5x are common in industrial plants. Level-controlled outlet valves and variable-speed treatment maintain consistent hydraulic loading.
Production ramps and shutdowns create month-to-month variation. Systems sized for peak summer flow with power reduction during quieter periods optimise annual requirement.
High-level alarms, emergency overflow routes, and stormwater diversion protect the plant from hydraulic overload. Safe states maintained during extreme weather events.
Principles, Pros, and Typical Applications
Ideal for conductive liquids such as wastewater, sludge, and chemicals. No moving parts and minimal pressure loss.
Clamp-on or inline transit-time metres for clean water, cooling water, and chemical lines. Non-invasive options avoid process shutdown.
Suitable for steam, gases, and clean liquids. Robust design with no delicate internals and wide turndown.
Orifice plates, venturi tubes, and pitot tubes for applications where proven, low-cost measurement is required.
Ultrasonic or bubbler level sensors paired with Parshall, Palmer-Bowlus, or V-notch weirs for effluent discharge monitoring.
Not sure which technology fits your application? Our process engineers will review your water quality data, flow rate, and treatment targets — then recommend the optimal solution.
Contact UsHow to Choose the Right Instrument for Your Application
| Consideration | Why It Matters | Typical Requirement |
|---|---|---|
| Fluid conductivity | Determines whether mag metres are viable | Electromagnetic requires >5 μS/cm |
| Suspended solids | Affects sensor fouling and accuracy | High solids = mag or doppler ultrasonic |
| Pipe size & velocity | Influences turndown and straight-run needs | Typical velocity 0.3 – 10 m/s |
| Accuracy requirement | Regulatory vs. indicative measurement | Custody transfer ±0.2%; effluent ±2% |
| Pressure drop budget | Orifice plates consume pump energy | Mag / ultrasonic = zero loss |
mag metre accuracy
size range
typical lifespan
instruments specified
Analytical instrument selection for critical water treatment processes.
View PageLevel instrument selection for critical water treatment processes tanks and sumps.
View PagePressure instrument selection for critical water treatment processes.
View PageOur instrumentation engineers size, specify, and integrate flow metres that deliver reliable data for your control strategy.
Our expertise spans multiple industries with sector-specific water treatment solutions.