Flow Meter Knowledge Base
In-depth articles, technology comparisons, and application guides for selecting and using flow metres in industrial applications.
Featured Knowledge Articles
Coriolis vs Electromagnetic Flow Meter
Comprehensive head-to-head comparison with operating principles, accuracy, cost, and when to select each technology.
Read →Flow Meter Selection Guide (2026)
Systematic methodology for selecting the right flow meter. Step-by-step guide for UK engineers and procurement teams.
Read →Flow Meter Comparison Chart
Comprehensive comparison of eight flow meter technologies with accuracy ranges, cost, and application guidance.
Read →Flow Meters for Oil & Gas
Technical and commercial guidance for custody transfer, allocation metering, and water injection in North Sea applications.
Read →Understanding Flow Measurement: Mass vs. Volumetric
Learn the fundamental difference between mass and volumetric flow measurement, and when to use each approach.
How Electromagnetic Flow Meters Work
A deep dive into Faraday's law and the operating principles behind magnetic flow meters.
Coriolis Flow Meters: The Gold Standard
Understanding the operating principles and applications of Coriolis mass flow meters.
How Vortex Flow Meters Work
Understanding vortex shedding flow meters for steam, gas, and liquid applications.
How Ultrasonic Flow Meters Work
Understanding transit-time and Doppler ultrasonic flow measurement technologies.
Choosing Between Mag Meters and Coriolis
A practical guide to selecting between electromagnetic and Coriolis meters for liquid applications.
Flow Meter Installation Best Practices
Essential installation guidelines to ensure accurate and reliable flow measurement.
Flow Meter Accuracy: What the Specs Really Mean
Understanding accuracy specifications, repeatability, and how to interpret manufacturer datasheets.
ATEX Flow Meters: Zone Classification & Hazardous Area Selection
ATEX 2014/34/EU flow meter guide: Zone 0/1/2 classification, protection concepts and temperature classes for explosive atmospheres.
Clamp-On vs Insertion Flow Meters: Which is Right for You?
Clamp-on vs insertion flow metre comparison — accuracy, installation, cost & when to use each. Guide for retrofit and hot-tap applications.
CO₂ Flow Measurement for Carbon Capture & Storage (CCS)
CO2 flow measurement for carbon capture and storage: supercritical density challenges, meter options and emissions trading accuracy.
Coriolis vs Electromagnetic Flow Meter: Complete Comparison Guide
Compare Coriolis and electromagnetic flow meters head-to-head. Accuracy, cost, turndown, pressure loss, and when to choose each technology for your application.
Coriolis vs Turbine Flow Meter: Complete Technology Comparison
Coriolis vs turbine flow meters: accuracy, moving parts, viscosity sensitivity, cost and when to choose each technology.
DP Flow Meters: Orifice, Venturi & Nozzles
Guide to differential pressure (DP) flow metres — orifice plates, venturi tubes & flow nozzles. Working principle, sizing & installation for process engineers.
Digital Twin Technology for Flow Measurement Systems
Digital twins in flow measurement: virtual commissioning, performance prediction, calibration optimisation and current limitations.
Electromagnetic Flow Meter: How It Works
How electromagnetic flow meters work: Faraday's law, liner and electrode materials, conductivity requirements and typical accuracy.
Electromagnetic vs Ultrasonic Flow Meter: Complete Comparison
Electromagnetic vs ultrasonic flow metre comparison — accuracy, installation, cost & applications. Which is right for water, chemicals & industrial processes?
Flow Meter Accuracy vs Repeatability: Understanding the Difference
Clear explanation of flow meter accuracy vs repeatability — what the specs mean, how to read datasheets, and which matters more for your application.
Flow Meter Comparison Chart: 8 Technologies Compared
Comprehensive comparison of Coriolis, electromagnetic, vortex, ultrasonic, turbine, positive displacement, differential pressure, and variable area flow meters.
Flow Meter Diagnostics & Health Monitoring | Predictive Maintenance
Built-in diagnostics for flow metres: NAMUR NE 107 alerts, HART/Modbus monitoring, predictive maintenance strategies, and remote condition monitoring systems.
Flow Meter Installation: Best Practices & Piping Requirements by Type
Straight pipe runs, orientation, grounding and best practices for installing Coriolis, electromagnetic, vortex and ultrasonic meters.
Flow Meter Maintenance Schedule & Service Intervals | Preventive Care
Planned maintenance intervals by flow meter technology, with preventive strategies, spare parts planning and cost optimisation.
Flow Meters for Oil & Gas: North Sea & Onshore Guide
Custody transfer, allocation metering and water injection: ATEX, SIL and North Sea considerations for oil & gas flow meters.
Flow Meter Pressure Drop: By Technology & How to Calculate
Pressure drop by flow meter technology — Coriolis, electromagnetic, vortex, ultrasonic and DP. How to calculate it, and what it costs in pumping energy.
Flow Meter Selection Guide for UK Engineers (2026)
Step-by-step flow meter selection methodology: fluid properties, accuracy requirements, installation constraints and budget.
Flow Meter Sizing Calculations: Step-by-Step Guide
Flow meter sizing guide with calculations for Reynolds number, velocity, pipe diameter & pressure drop. Step-by-step methodology for process engineers.
Flow Meter Standards & Certification Guide | ISO 5167, ATEX, SIL, MID
Complete guide to flow meter standards — ISO 5167, ATEX, SIL, MID, OIML R117, API MPMS. Compliance requirements by industry and application.
Flow Meter Troubleshooting Guide: Common Problems & Solutions
Systematic troubleshooting: erratic readings, zero offset, no output, high/low errors. Causes, fixes by meter type, diagnostic tools.
Zero Drift in Flow Metres: Causes & Prevention | Technical Guide
Zero offset and zero drift explained: why metres drift at zero flow, which technologies are affected, detection methods, and auto-zero features for prevention.
Flow Measurement in Battery Manufacturing: Challenges & Solutions
Flow measurement in lithium-ion battery production: slurry coating, electrolyte filling, NMP recovery and micro-dosing precision.
Flow Meters for Green Hydrogen Production & Distribution
Flow measurement for hydrogen production and distribution: low density and embrittlement challenges, Coriolis, ultrasonic and thermal options.
How to Calibrate a Flow Meter: Methods, Frequency & Best Practices
Flow meter calibration guide — methods (gravimetric, volumetric, master meter), frequency recommendations & traceability standards for process engineers.
How to Select the Right Flow Meter: 5 Essential Criteria
Step-by-step flow meter selection guide. 5 essential criteria every engineer must evaluate: fluid properties, flow range, accuracy, installation & budget.
ISO 5167 DP Flow Measurement | Orifice & Venturi
ISO 5167 guide — orifice plates, venturi tubes & flow nozzles. Calculation methods, installation requirements & compliance for DP flow measurement.
Mass Flow vs Volumetric Flow: Key Differences
Mass vs volumetric flow measurement: the density relationship, temperature and pressure effects, and which technologies measure each.
MID Custody Transfer Metering: Certification & Fiscal Flow Measurement
MID 2014/32/EU & OIML R117 guide — custody transfer metering requirements, accuracy classes, verification & type approval for fiscal flow measurement.
Open Channel Flow Measurement: Weirs, Flumes & Level-Based Methods
Open channel flow measurement: V-notch and rectangular weirs, Parshall flumes, level methods and the Manning equation.
Positive Displacement Flow Meters Explained
Complete guide to positive displacement flow metres — gear, rotary vane & oval gear types. Accuracy, applications & selection guidance for UK engineers.
Predictive Maintenance for Flow Meters: AI & ML
AI and machine learning for flow meter maintenance: built-in diagnostics, NAMUR NE 107, pattern recognition and downtime reduction.
SIL Rated Flow Meters: Safety Integrity Level Guide | IEC 61508/61511
SIL flow meter guide — SIL 1/2/3 ratings, IEC 61508/61511, proof test intervals & safety instrumented systems. Essential for safety-critical applications.
Smart Flow Meters & IoT: Industry 4.0 Application Guide
Industry 4.0 flow meters: HART, Profibus and Ethernet connectivity, cloud integration, diagnostics and predictive maintenance.
Thermal Mass Flow Meters: Principle & Selection
Thermal mass flow meters for gas measurement: thermal dispersion principle, compressed air, natural gas, biogas and flare gas applications.
What is a Turbine Flow Meter? How It Works, Applications & Benefits
Turbine flow metre guide covering working principle, applications, accuracy specs & selection criteria. Compare with Coriolis, electromagnetic & vortex metres.
Variable Area Flow Metres (Rotameters): Principles, Types & Selection
Variable area flow metre (rotameter) guide — working principle, types, advantages & applications. Simple, reliable flow measurement for process engineers.
Vortex Flow Meters: Pros, Cons & Applications
Vortex flow measurement in depth: von Kármán principle, bluff body design, Reynolds number limits, accuracy and applications.
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