Cross-sectional view of PS membrane
Upstream Surface (Dull SIde)
Downstream surface (Shiny Side)
HIGHLY ASYMMETRIC POLYSULFONE MEMBRANE
Having upstream pores that are one hundred times larger than the downstream pores, our polysulfone membranes have an unique highly asymmetric structure that provides built-in pre-filtration through the depth of the membrane and results in exceptionally high through-puts and flow rates. Our polysulfone membranes are unsupported and may be used in either direction; however for high dirt-holding capacity and high throughput (typically seen in pleated cartridge applications), orient the larger pore surface towards the flow source. For excellent surface retention of particles in applications where particle recovery is important (typically seen in flat membrane disc filtration and cross-flow modules), orient the tight pore surface towards the flow source.
Typical Applications
Ultra high purity DI water
Biologicals
Food and beverage
Ink-jet ink
General liquid processing
PRODUCT DATA
Unsupported and hydrophilic
Integrity testable using standard integrity tests when used as a double layer or with the smaller pores oriented towards the flow source
Wide range of chemical compatibility
Steam sterilizable and autoclavable.
Low extractables
Sealable using heat and thermal impulse sealing methods
Hot water sanitizable
TYPICAL PERFORMANCE SPECIFICATIONS
ORDERING INFORMATION
Hydrophobic polysulfone membranes are offered in rolls sizes of ~10.25 inches wide and >750 in length. For additional ordering information, please contact sales@pacificmembranes.com