Exploring the Benefits of Crystar® Crossflow Filtration 

Crystar® crossflow membranes were developed for the most demanding applications. Thanks to their well-engineered and well-controlled R-SiC microstructure, filtration processes of high value products can be achieved consistently. The carrier geometries were designed with the support of numerical modelling for an optimal combination of filtration fluxes, longitudinal pressure drop and mechanical resistance. To summarise, Crystar FT crossflow membranes provide:

  • Reliable separation processes thanks to the well-engineered and thoroughly controlled multi-layer silicon carbide membrane;
  • Low energy consumption resulting from high permeate fluxes at low transmembrane pressures and low recirculation speed;
  • Fast and effective CIP cycles enabled by the unmatched thermal shock resistance, thermal stability and corrosion resistance for harsh cleaning operations;
  • High compactness thanks to the high filtration area developed in big size tubular carriers (up to OD 51 mm – coming soon!) combined with high permeate fluxes;
  • Efficient backwash operations thanks to high carrier permeability and low adsorption of negatively charged compounds (bacteria, proteins, oils,…).

Crystar® crossflow products are available in the geometries and pore sizes described in the table below.

Membrane pore sizes
(as measured by mercury intrusion*)

250 nm 600 nm 1000 nm 3000 nm


Outer diameter [mm] Channels diameter [mm] Filtration area [m2/m] Length [mm]
10 6 0.018 up to 400 mm
25 17 0.053 up to 1178 mm
25 3 0.30 up to 1178 mm
41 3 0.66 up to 1200 mm

*Mercury intrusion is a reliable and known method to measure the physical pore size of porous materials.

Explore the finer details of Crystar® filtration technology in our crossflow detailed tech sheets.