High Performance Omega PES Membrane Combined with Significant Material and Design Improvements Deliver Highly Reliable Fluid Dynamics and Better Process Economics
- Easy implementation into your process. The new T-series cassettes offer significant improvements in construction and design while utilizing the same proven Omega polyethersulfone (PES) membrane to reduce revalidation requirements.
- Increased safety, reliability, and reproducibility. Superior new materials of construction are durable and stable, exhibit very low extractables, and offer broad chemical compatibility.
- High flux, high selectivity, and low protein binding are achieved through the use of Omega PES membrane.
- Improved process performance. Cassettes are designed to provide optimal mass transfer to improve your process economics.
- Easy scale up for robust purification processes. Available in scalable formats with the same materials of construction from development to production-scale processes.
- Enhanced validation. T-series cassettes surpass the latest biopharmaceutical and regulatory standards such as biological reactivity, extractables, and TOC. Product claims are backed by extensive validation documentation to support the use of T-Series cassettes in your process.
Proven Omega MembranePall's Omega polyethersulfone (PES) membranes offer high flux and selectivities. They have been specifically modified to minimize protein binding to the surface and interstitial structure of the membrane. This polymeric membrane is stable against biological and physical degradation due to the unique chemical properties of PES. Omega membranes are cast on a highly porous, non-woven polyolefin support. They have an anisotropic structure, a thin skin-like top layer with a highly porous underlying support. The structure of the skin determines the porosity and permeability characteristics of the membrane and can typically be cleaned quicker and easier than membranes with a uniform, sub-micron depth structure. This membrane is compatible with acids, bases and a variety of other cleaning agents. Omega membranes are available in a wide range of nominal molecular weight cutoffs (NMWC).
The T-Series AdvantageSuperior new materials of construction and improved cassette design increase process safety, reliability, reproducibility, and productivity:
- The feed and permeate screen material for T-Series cassettes is made from polypropylene which is highly resistant to sodium hydroxide.
- Larger feed and permeate ports provide lower pressure drops.
- T-Series cassettes have been designed to provide maximum mass transfer through the membrane, resulting in faster processing times or reduced area installations compared to existing similar cassette formats.
- Vaccine and conjugate concentration and diafiltration
- Purification and recovery of monoclonal antibodies (mAb) or recombinant proteins
- Blood plasma fractionation and purification
Product PlatformsT-Series cassettes complement Pall’s highly successful Centramate™ and Centrasette™ products, and have been developed following years of experience designing and optimizing our customers’ biotech and biopharmaceutical processes. T-Series cassettes for Centramate holders are offered in scalable membrane formats with effective filtration areas (EFA) from as low as 200 cm2 (0.215 ft2) to 0.5 m2 (5.4 ft2), making them ideal for process development and small-scale production of 0.1 L to 125 L. Centrasette T-Series cassettes, in combination with Centrasette holders, can process thousands of liters with installations incorporating hundreds of square meters of EFA.
Materials of Construction
|Encapsulent||Polyurethane with white pigment (TiO2)|
|Permeate Seals||Platinum cured silicone|
|Gaskets||Medical grade, platinum cured silicone|
|Maximum Pressure1||6 barg (90 psig) @ 23 °C
4 barg (60 psig) @ 55 °C
|Maximum TMP||4 barg (60 psig) @ 55 °C|
|Temperature Range2||-5 – 55 °C|
|pH Range||2 – 14|
1Pressure rating will be dependant on rating of the lowest system component.
2Cassettes must not be allowed to freeze.
Typical Operating Parameters
|Cross Flow Rate for Processing||5 – 7 L/min/m2 (0.5 – 0.7 L/min/ft2)|
|Cross Flow Rate for Cleaning||8 – 10 L/min/m2 (0.8 – 1.0 L/min/ft2)|
|Test Pressure||2 barg (30 psig)|
|Maximum Air Forward Flow||< 1600 sccm/m2 (< 150 sccm/ft2)|
Shelf LifeThe shelf life of cassettes packaged in 0.3 N sodium hydroxide is expected to be three years from the date of manufacture when the cassettes are stored unopened in the original packaging at 4 – 25 °C and protected from direct light. Extended shelf life studies are ongoing.
Biological SafetyAll of the materials of construction in the T-Series cassettes have been tested and meet requirements for United States Pharmacopeia (USP) Biological Reactivity Test, In Vivo <88>
at 70 °C.
Figure 1Omega 10 kD Membrane, Centramate C vs. T-Series Membrane Cassettes at a 5 L/min/m2Cross Flow Rate
- Certificate of Quality
- Membrane Cassette Care and Use Procedures
- Material Safety Data Sheet (MSDS) for cassette preservative
- Two platinum cured silicone gaskets
To test T-Series cassettes in your process, contact Pall today.
This is a guide to the part number structure and availability of T-Series cassettes. For example, the part number OS 010 T12 is an Omega membrane, 10 kDa NMWC, 0.1 m2 (1.1 ft2) Centramate screen channel cassette.