Introducing Metlan’s Magnetic Flow Meters

Metlan Instruments, a global specialist in flow measurement technology, today announced new milestones in its electromagnetic (mag) flow meter product line and production excellence. With demonstrated accuracies, elevated durability, and broad industrial applicability, the company reinforces its commitment to precision measurement solutions.

Precision Measurement Rooted in Faraday’s Law

Electromagnetic flow meters from Metlan function on the principle of electromagnetic induction: when a conductive fluid passes through a magnetic field inside the meter, an induced voltage is generated between the fluid‑contacting electrodes. That voltage is proportional to fluid velocity — and Metlan’s transmitter transforms it into a highly accurate flow measurement.

Key specifications of Metlan’s magnetic flow meter series include:

• Accuracy: standard ±0.5 %, optional ±0.2 %.
• Measuring range: from 0.3 m³/h up to 125,000 m³/h.
• Maximum process pressure: up to 100 bar (1450 psi) in many models.
• High‑temperature liner materials: PTFE, ETFE, PFA rated to –40 °C / 180 °C in some models.

Robust Manufacturing for Long‑Term Reliability

Beyond performance specifications, Metlan emphasizes stringent quality control from raw materials to final calibration. The company’s production process includes:

1. Measuring Tube Processing

• Laser cutting and drilling with tolerances held within ±1–2 mm.
• Inspection of liner and flange dimensions to ensure precision.

2. Electrode Installation

• Electrode materials (316L stainless steel, tantalum, platinum‑iridium) chosen to match measured fluids.
• High‑performance silver‑plated, high‑temperature electrode wires enhance signal fidelity.

3. Coil & Internal Assembly

• Use of pure copper coils (not cheaper aluminium variants) for increased field strength.
• Installation of high‑permeability silicon steel sheets and corrosion‑resistant protective plates.

4. Transmitter & Connection Assembly

• Circuit boards feature 3‑layer design supporting fluid monitoring (including solids/slurry) and signal accuracy.
• 24‑hour aging test to validate stability and signal output.

5. Calibration

• Each unit receives a unique serial number and calibration report, with full‑range verification of error, repeatability and adjustment coefficient.

6. Surface Treatment & Packaging

• Anti‑corrosion coating; colour customisable per customer specification.
• Final inspection, certified calibration report and customised heavy‑duty wooden packaging for safe transit.

Application‑Flexible & Industry‑Ready

Metlan’s electromagnetic flow meters are designed for a wide variety of demanding environments. Their benefits include:

• No moving parts → minimal maintenance and no pressure loss.
• Ability to measure flow bidirectionally.
• Insensitivity to changes in fluid density, viscosity, temperature or pressure — which means more reliable measurement under variable process conditions.
• Suitable for slurries, dirty water, corrosive chemicals, and other tough conductive fluids.

Industries served include: water & wastewater, chemical & petrochemical, mining, pulp & paper, food & beverage, and oil & gas — anywhere that accurate and durable flow measurement truly matters.

Not sure how to choose the right one? Here's complete guide to what's magnetic flow meter and how to choose it

About Metlan Instruments

Founded in 2003, Metlan Instruments has over two decades of experience delivering high‑precision flow systems. Every flow meter is carefully calibrated and assigned a unique serial number, allowing customers to trace full calibration history and ensure traceability.