The Importance of Tangential Flow Filtration (TFF) in the Pharma Industry

Tangential flow filtration (TFF), also known as cross flow filtration, is a critical process in the biopharmaceutical industry used for concentration, desalting and buffer exchange of biomolecules. Unlike traditional filtration, where the feed stream flows perpendicular to the filter, TFF involves a parallel flow to the membrane, which minimizes fouling and increases filtration efficiency. TFF is widely used for the purification of proteins, viruses and other biologics, making it an indispensable part of bioprocessing.

Key Operational Variables in TFF

Our solutions specifically address and control two significant operational variables in the TFF process:

1. Recirculation Rate or Cross Flow Rate
The recirculation rate, or cross flow rate, is critical for maintaining the desired flow dynamics across the filtration membrane. A stable and optimized cross flow rate ensures that the feed solution continuously sweeps across the membrane surface, reducing the buildup of retained particles and enhancing the filtration efficiency. Our Quattroflow® pumps are designed to deliver precise and consistent cross flow rates, ensuring optimal performance and high-quality outcomes.

2. Trans-Membrane Pressure (TMP)
Transmembrane pressure (TMP) is the pressure difference across the membrane that drives the filtration process. Maintaining an appropriate TMP is essential for achieving high filtration rates and preventing membrane fouling. Our advanced flow sensors and meters provide accurate measurement and control of TMP, ensuring that the TFF process operates within the optimal pressure range. This control is crucial for maintaining the integrity of sensitive biologic molecules during filtration.

Achieving Peak Performance

Only when these variables—recirculation or cross flow rate and transmembrane pressure—are properly achieved and maintained will the TFF process realize its peak performance level. Our state-of-the-art technology and robust design ensure that these critical parameters are met, providing reliable and high-quality results for biopharmaceutical production.

By integrating our advanced TFF solutions into your processes, you can enhance the efficiency, consistency and quality of your biopharmaceutical production, ensuring that your products meet the highest standards of purity and potency. This not only improves operational efficiency but also ensures compliance with regulatory requirements and enhances patient safety.

Application-Specific Solutions

Protein Purification: TFF is extensively used in the purification of proteins, including monoclonal antibodies (MABs) and recombinant proteins. Our Quattroflow pumps and control systems ensure precise control over cross flow rates and TMP, which are essential for achieving high purity and yield. By maintaining optimal filtration conditions, our solutions enhance the efficiency and reliability of protein purification processes.

Virus Concentration: In the production of viral vaccines and gene therapies, TFF is employed for the concentration and purification of viruses. Accurate control of recirculation rates and TMP is vital for maintaining virus integrity and maximizing recovery. Our systems provide the necessary precision and reliability to support high-quality virus production.

Cell Harvesting: TFF is also used for cell harvesting in bioprocessing, where cells are separated from the culture media. Ensuring stable cross flow rates and appropriate TMP helps in achieving efficient cell retention and high recovery rates. Our Quattroflow pumps are particularly suitable for these applications, offering gentle handling of cells to maintain their viability.

Buffer Exchange and Desalting: TFF is commonly used for buffer exchange and desalting of biomolecules, where precise control over filtration parameters is crucial. Our solutions ensure that the process is conducted efficiently, with minimal product loss and optimal buffer conditions.

Batch and Continuous Processing: Our TFF systems are designed to support both batch and continuous processing, providing flexibility to meet varying production demands. The ability to seamlessly transition between different processing modes enhances operational efficiency and scalability.






Why Quattroflow/PSG Biotech Pumps are the Best Option for TFF

  • Four-piston design does not require any mechanical seals or wetted rotating parts, which helps ensure total product containment with minimal risk of shear, pulsation and particulate generation occurring
  • Self-priming operation with high turndown ratios that enable the creation of consistent low-shear and low-pulsation operation that is essential for a stable and steady TFF process
  • Four-piston pumps require up to 50% less energy to operate: less energy = less heat input = less shear stress = less product damage = higher product yields

Explore the challenges that must be overcome for a successful TFF process and why four-piston diaphragm pumps outperform other technologies for TFF success.

Download White Paper





Why PSG Biotech Pump Controllers and Flow Meters are the Best Option for TFF

  • The award-winning BioProTT™ FlowSU System is easily integrated with the pump via a smart connection that enables it to deliver highly accurate flow measurement with no obstructions within the flow path
  • The Q-Control Integrated Pump Controller is an integrated PID controller within the pump, which gives the pump the capability to directly interface with pressure and flow sensors
  • SumoFlo® Coriolis Flow Meters offer +/-1% flow-rate reading accuracy that is unaffected by flow regime or variations to the velocity profile, allowing for accurate measurements of liquids transferred in TFF applications
  • BioProTT™ Clamp-On Sensors use the ultrasonic transit-time method to ensure that every measurement is non-invasive, which is a critical concern when transferring hygienic liquids in TFF applications

Discover why PSG Biotech flow sensors/meters and pump controllers have been designed to outperform competitive technologies, leading to optimized TFF performance.

Download White Paper

Why PSG Biotech Solutions Are the Best Option for Tangential Flow Filtration

Quattroflow Four-Piston Diaphragm Pumps

Engineered for gentle, stable flow control, Quattroflow Four-Piston Diaphragm Pumps maintain consistent linear flow for optimal buffer-dilution performance. 

QF-ball-chart-QF-v-comp

SumoFlo® Coriolis Flow
Meters

With best-in-class accuracy, SumoFlo Coriolis Flow Meters ensure precise, accurate measurement for buffer dilution. 

SumoFlo-ball-chart-sumo-v-comp

BioProTT™ FlowSU
System

Ultrasonic BioProTT FlowSU Systems are optimal for single-use buffer-dilution applications due to their ease of use and reliability
 

QF-ball-chart-QF-v-comp

BioProTT™ Clamp-On
Sensors

Ideal for monitoring flow rate in laboratory buffer-dilution applications, BioProTT Clamp-On sensors rely on non-invasive measurement technology.   
 

QF-ball-chart-QF-v-comp

Webinars


Discover 10 Ways to Be More Agile in Your TFF Processing

Learn how to make your TFF operations more flexible and scalable in this on-demand webinar.

Access the Webinar

See How Biopharma’s Most Trusted Pump Can Optimize TFF

Watch the webinar to hear firsthand about how Quattroflow optimizes TFF systems.

Access the Webinar

Product Selector

As your trusted industry leader in flow transfer and measurement solutions, PSG Biotech offers a comprehensive range of pumps and flow meters tailored to meet your specific biologic flow-management requirements.

Use the selector tool below to identify your desired flow rate range. Then, explore our extensive selection of products to find the perfect solution for your needs. Click on the product name for more information.



Flow (LPM)

0.002 - 0.05

0.002

SumoFlo U08

0.005 - 0.05

0.005

QB2

0.001 - 0.5

0.001

QF30

0.02 - 1.5

0.02

SumoFlo 031

0.017 - 2

0.017

BioProTT™ 1/8"

0.02 - 3

0.02

QF150

0.5 - 5

0.5

SumoFlo 062

0.1 - 6

0.1

BioProTT™ 3/16"

0.1 - 8

0.1

BioProTT™ 1/4"

0.9 - 9

0.9

SumoFlo 063

0.1 - 10

0.1

BioProTT™ 3/8"

2 - 20

2

SumoFlo 082

0.3 - 20

0.3

BioProTT™ 1/2"

0.1 - 20

0.1

QF1200

4 - 40

4

SumoFlo 151

0.42 - 41.67

0.42

QF2500

6 - 60

6

SumoFlo 152

2 - 75

2

BioProTT™ 3/4"

2.5 - 80

2.5

BioProTT™ FlowSu 1"

0.83 - 83.33

0.83

QF4400

0.83 - 83.33

0.83

QF5050

0.83 - 100

0.83

QF5K

2 - 100

2

BioProTT™ 1"

10 - 100

10

SumoFlo 153

8.33 - 166.67

8.33

QF10K

16.67 - 266.67

16.67

QF20K

“Having used PSG® Biotech products since 2021, I have worked with many early adopters and have even seen a Quattroflow® pump that is still in operation that was one of the first five pumps ever sold! Just recently, I found a pump manufactured in 2003, also still in operation, so, as long as you use them within the parameters of the operating manual and with correct maintenance, these pumps are nearly indestructible.”

Mag. pharm. Dr. Birgit Zonsics, Product Manager, Sonnek Engineering GmbH

“We have been working with PSG® Biotech products for 15 to 20 years now and there are three compelling reasons for our loyalty to these products. First, the pumps and flow meters are easy-to-use/plug-and-play, which is in-line with one of our goals at Hitma. The second reason is the good quality that they deliver, and finally, the continued innovation that PSG Biotech brings to the market.”

Kevin de Jager, Outside Sales Engineer, Hitma Group

Download White Paper

Uncover why PSG Biotech four-piston diaphragm pumps, flow sensors/meters and pump controllers surpass competitors’ technologies for excellence in TFF applications.

Abaque Logo
All-Flo Logo
Almatec Logo
Blackmer Logo
Ebsray Logo
em-tec Logo
Griswold Logo
Hydro Systems Logo
Malema Logo
Mouvex Logo
Neptune Logo
Quattroflow Logo
Wilden Logo