Flow meters

Ultrasound-based, non-invasive flow meters and clamp-on transducers for fluid-bearing tubing systems in the pharmaceutical, pharma and bioprocess industries.

Read more

Flow meters for single-use systems

Alflow sells a wide range of ultrasound-based, non-invasive flow meters and clamp-on transducers for fluid-bearing tubing systems in the pharmaceutical, pharma and bioprocess industries. The flow meters are used to monitor flow rates in bioprocess technology.

The function is based on the ultrasonic transit time method and has a non-invasive effect, which means that there is no direct contact with the medium, which makes it particularly suitable for processes with strict hygienic requirements. See the selection of flow meters for single-use systems from leading manufacturers on this site.

What are flow meters for single-use systems?

The flow meter system consists of a flow sensor, a Clamp-On transducer and an electronic evaluation system, the flow meter. In combination with the flow meter, the Clamp-On transducer ensures reliable monitoring of the volume flow rate in laboratories or industrial applications.

Innovative design combined with an established and reliable technology for monitoring volumetric flow in real time provides a truly compact and space-saving solution. Our flow meters can be used with all sizes of our non-invasive Clamp-On transducers, and it is also possible to change sensors and/or sensor sizes.

As mentioned, the operating principle is based on the ultrasonic transit-time method and is thus non-invasive and determines the transit-time difference of ultrasonic signals through a measuring section and is used to evaluate volumetric flow rates.

A typical transit-time flow-measurement system incorporates two piezo-ceramic plates that act as both ultrasonic transmitter and receiver. The flow measurement is performed by alternately sending and receiving an ultrasonic impulse between the two transducers and by measuring the transit-time difference that it takes the ultrasonic pulse to travel between them.

For higher accuracy, our Clamp-On transducers incorporate two pairs of ultrasonic transducers. They consist of four piezo-ceramic plates and are arranged in an X-configuration around the tube containing the measured flow.

When sending ultrasound signals through the measurement section, the difference in transit time depends on the flow direction of the medium. If the ultrasound signals are transmitted with the flow direction, the downstream signal needs less time, and if the ultrasound signals are transmitted against the flow direction, the upstream signal needs more time.

The evaluation of the received ultrasound signals is based on the upstream and downstream measuring sections, and the transit time difference is measured for each pulse. The difference between the upstream and downstream measurements is proportional to the volumetric flow rate.

Find the right flow meters for your single-use application

Our flow meters are made of materials that ensure you an extremely high level of cleanliness and thus the best conditions for your product. They are available in different variants with standard interfaces, which allow optimal integration in automated environments. They are available with 1, 2, 4 and 5-8 channels/outputs, respectively, and in an analogue version with 1-2 channels/outputs. The flow meters can be used in a wide range of applications within the medicinal, pharma and bioprocess industries, including:

  • Flow measurement on disposable equipment
  • Flow measurement on flexible pipes
  • Addition of media to bioreactors
  • Chromatographs, filtration, fillings, process evaluation, upscaling, research, etc.
  • Flow monitoring during chromatography or laboratory-scale filtration
  • Checking the upstream feed
  • Fillings
  • Evaluation and upscaling of processes
  • Checking process equipment such as pumps or valves
  • etc.

The use of sterile single-use components saves time and reduces the risk of cross-contamination, while increasing productivity between batches. The systems are manufactured with a focus on quality, and they can be quickly installed and operational in a fraction of the time required to install traditional stainless-steel systems used for pharmaceutical and biotechnological filling.

Purchase flow meters from Alflow

We pride ourselves on ensuring you a good experience at Alflow. Therefore, on this site, you can find flow meters of the highest quality from reputable manufacturers. This means that our single-use flow meters meet the requirements of the biopharmaceutical industry in terms of use, hygiene, environment and serviceability. This means that they are all type approved and produced in appropriate materials. That way, you can count on good performance with our flow meters.

You can choose to have your single-use flow meters delivered with the current certificates that are suitable for the pharmaceutical industry. For example, certificates such as IP classification.

We know the importance of absolute cleanliness in pharmaceutical processes, and with single-use products not only do you achieve perfect cleanliness, but also savings in time and in the use of cleaning agents.

At Alflow, we have over 25 years of experience with processes, applications and components within industries such as the pharmaceutical industry. Therefore, if you need flow meters for your single-use systems to monitor and control the movement of pharmaceutical liquids, you can find them at Alflow.

Want to know more? Then our specialists are ready to help you find the right flow meter, so we work together to find the best match for your application. You can easily contact us here on the site.

See also our other single-use products

Do you or your customers need other single-use components for your processes? Then you can explore the range of single-use equipment. At Alflow you can find, e.g.:

Therefore, we have single-use equipment for several purposes, and you can find it at Alflow. We are a recognised supplier of high-quality products. At Alflow, we comply with current requirements and standards within several industries. This way, you and your customers are ensured of an efficient and optimal experience with our products.

We always seek to find the match that creates most value for your application, so that we can contribute to a greater return on your production through less maintenance and downtime. If we can achieve this together, we will live up to our goal of being your value-creating partner.