domnick hunter - a division of Parker-Hannifin Corporation. World-Class Filtration, Purification and Separation Solutions to Industry

Buffer filtration

Your selection of buffer filter can have a major impact on the productivity of your process. Parker domnick hunter offers filtration products that can significantly decrease filtration time of buffers, eliminating bottlenecks in the buffer prep area to minimise production time and increase daily production capacity.

The problem

Although buffer filtration is essential for the protection of downstream equipment, a filtration stage that does not allow the rapid transfer of buffers delays preparation and turnaround of the next buffer causing a bottleneck in the production process. This can have a major negative effect on the overall productivity of the plant.

The solution

Parker domnick hunter’s PROPOR range of filters is based on a highly asymmetric polyethersulphone membrane which allows exceptionally high flow rates to eliminate delays in buffer processing. The range includes filters for simple bioburden reduction as well as sterile filtration of both simple and complex buffers. In addition, the filters are chemically resistant over a wide pH range making them ideal for buffer filtration applications.


Propor BR
PROPOR BR filters have been specifically designed for the fast and cost effective bioburden reduction of pharmaceutical solutions.
Propor HC
PROPOR HC sterilising grade filters have been specifically designed for the effective and economical processing of difficult to filter solutions.
Propor SG
PROPOR SG sterilising grade filters feature a patented, microbially retentive polyethersulphone membrane for fast, reliable and cost-effective sterile filtration of pharmaceutical fluids.

Biopharmaceuticals Documents