Surface Acoustic Wave (SAW) Technology: Advanced Flow Measurement and Biofilm Prevention in WFI Loops

Burkert 09/01/2025

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Bürkert, a leader in flow control solutions, has introduced an innovative flowmeter that employs Surface Acoustic Wave (SAW) technology. This device is specifically engineered to improve flow measurement accuracy while also preventing biofilm buildup in Water for Injection (WFI) loops. Tailored for the pharmaceutical sector, Bürkert’s Type 8098 FLOWave flowmeter offers highly precise, contactless flow measurement, significantly reducing the risk of contamination caused by inadequate flow conditions.

State-of-the-Art Flow Measurement Technology

The FLOWave flowmeter operates using surface acoustic waves (SAW) that travel through the fluid. By analyzing the time differences between these waves, FLOWave can accurately determine real-time volume flow rate, cumulative volume, flow velocity, and temperature—unaffected by fluid conductivity or trapped bubbles. This groundbreaking technology facilitates precise, continuous monitoring of flow parameters in WFI systems, ensuring adherence to strict pharmaceutical regulations.

Performance and Accuracy

Bürkert’s FLOWave flowmeter stands out for its precision, achieving measurement accuracy within 0.4% and repeatability within 0.2%. Such accuracy is vital for maintaining minimum flow rates and turbulence, which are essential for preventing biofilm formation in WFI systems. Additionally, the careful regulation of flow velocity and temperature guarantees optimal system performance, minimizing the likelihood of biofilm growth.

By enhancing flow management, the FLOWave flowmeter boosts pump efficiency, avoiding unnecessary increases in pump speeds that could lead to higher energy use and accelerated wear on the pump. This results in lower operational costs and extended system lifespan.

Reliable, Contactless Measurement

The FLOWave flowmeter utilizes contactless technology to provide exceptional reliability and consistent accuracy. Unlike conventional sensors that depend on direct contact with the media and can deteriorate over time, SAW technology is more resilient to faults, which helps reduce maintenance needs and the frequency of calibrations.

Hygienic Design for Pharmaceutical Applications

The FLOWave flowmeter's design effectively eliminates the risk of contamination associated with traditional sensors, which can harbor bacteria. Its straight-through measuring tube prevents the formation of dead zones where particles and microorganisms might accumulate. Furthermore, the flowmeter is made from robust 316L stainless steel and is compatible with CIP/SIP processes, ensuring durability and resistance to corrosion.

The compact and lightweight nature of the FLOWave flowmeter facilitates easy installation without the need for lifting equipment, making maintenance simpler. Additionally, it supports modern digital communication protocols, allowing for seamless integration into existing systems.

Compliance with Pharmaceutical Standards

The FLOWave flowmeter is designed to comply with the highest standards in the pharmaceutical industry, including an FDA certificate of conformity and ASME BPE compliance. Its hygienic design, reliability, and durability make it a dependable choice for pharmaceutical applications.

Alongside the FLOWave flowmeter, Bürkert provides a comprehensive range of components for WFI distribution systems, such as diaphragm valves, point-of-use (POU) valves, control valves, and POU batching systems.

With its accurate flow measurement, ability to prevent biofilm formation, and top-tier hygienic design, Bürkert’s FLOWave flowmeter is the perfect solution for achieving optimal performance in Water for Injection systems.

Find out more about FLOWave for WFI loops.

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Burkert Fluid Control Systems

01285648720
sales.uk@burkert.com
http://www.burkert.com/
Fluid Control Centre 1 Bridge End Gloucestershire Cirencester GL7 1QY GB

About us

Bürkert is present in thirtyfive countries around the world. We also work with a large network of distributors and partners, which means we are as close as possible to our customers. This global presence ensures full service and support to all of our customers in every country around the world. Research is the lifeblood of our company.

At Bürkert, we are never satisfied with the status quo and are continually seeking new technologies and solutions for our customers. Every year, our people develop new and highly advanced products and solutions, ranging from integrated process measurement and control units to the most sophisticated systems used in pharmaceutical research. To be a market leader, we are also an R&D leader.

Therefore, our investment in research & development is one of the highest in our industry. In our research centres in Germany and France, 150 people are committed to working for a common future for our company and our customers. We are committed to offering our expertise wherever it is needed, anywhere in the world. This global presence ensures that our advances in fluid control technology are also global.

What we do in a nutshell

Manufacture of process equipment. One of the few manufacturers to provide solutions for the complete control loop.

Where we supply to

UK Ireland, Europe

Industries we supply to

Food and Beverage, Pharmaceutical Cosmetics Toiletries, Water and Wastewater

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