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Vögtlin’s d·flux Mass Flowmeter Wins 2025 Innovation Award

Dec 9, 2025

iCenta is pleased to highlight a major industry achievement: the d·flux Mass Flowmeter and Controller, engineered by Vögtlin (and distributed in the Americas via Sierra Instruments), has been awarded a 2025 Innovation Award by Processing & Instrumentation.

This recognition places the d·flux firmly at the forefront of advanced gas flow measurement technology — and for good reason.

A New Benchmark in Gas Flow Measurement

Designed for demanding laboratory and industrial environments, the d·flux is a true multiparameter device, delivering precise measurement outputs for:

  • Mass flow

  • Volumetric flow

  • Temperature

  • Pressure

  • Density

Unlike conventional mass flow devices, the d·flux uses advanced physical computations based on the REFPROP (NIST) database, accurately calculating gas viscosity and density from pressure and temperature. The result? Highly stable, highly accurate flow readings, independent of ambient fluctuations.

Technical Performance That Stands Out

The d·flux sets a new performance standard with features including:

  • Accuracy up to ±0.3% of user full scale and ±0.5% of measured value

  • Flow measurement and control up to 1508 slpm (hydrogen up to 2900 ln/min)

  • Long-term stability under 0.2% of measured value per year

  • Pre-programming for up to 15 gases or mixtures

  • Five interchangeable sensor options, optimising cost and application flexibility

  • No straight-run piping required, making it ideal for compact installations

  • IP54 environmental protection

Connectivity is a strong suit too: every unit includes analog outputs, Modbus, and Bluetooth, with optional Profinet or EtherCAT Ethernet communication. Users can access real-time process data via free PC software or an Android app.

Built for Industrial-Scale Gas Flow

Developed specifically for higher flow rates, the d·flux supports:

  • Air: 0–350 to 0–1400 ln/min

  • Hydrogen: up to 2900 ln/min

A standard 1″ BSPP process connection ensures easy integration into existing systems.

Global Availability

Although units feature different colour schemes depending on region, the technology is identical:

  • Black units – Sierra Instruments (Americas)

  • Yellow units – Vögtlin (Rest of World)

Why This Matters for iCenta Customers

The d·flux offers one of the most flexible, cost-effective mass flow solutions on the market — particularly for organisations working with multiple gases, variable conditions, or tight installation spaces. Its combination of multi-parameter measurement, high accuracy, and advanced communication options places it at the leading edge of modern flow control technology.


Learn more:
Vögtlin: https://www.voegtlin.com/en/
Innovation Awards: https://www.piprocessinstrumentation.com/innovation-awards/article/55321485/2025-innovation-awards-winners