Pre treatment

Introduction

Filttex melt blown filter cartridges are made with 100% polypropylene and provide a large contact surface for minimum pressure drop, high retention capacity and high filtering efficiency.

Applications

■ Food and drink industry.

■ Cosmetics industry.

■ Photographic industry.

■ Pharmaceutical industry.

■ Fishing industry.

■ Process water.

■ Reverse osmosis pre-treatment.

■ Water-based solutions.

■ Solar heating industry.

■ Petrochemical industry.

Depth filtration

Surface filtration is achieved by a filtering medium (generally very fine) the pores of which are essentially smaller than the size of the particles to be trapped. Thus solid particles are retained by direct interception on the surface of the filtering medium. This filtration is very sensitive to preferential paths and can cause an escape of solids when the filtering medium breaks. On the other hand, in Filttex depth filtration the filtering medium is thicker and its pores are smaller, equal to or greater than that of the particles to be retained. In this case, as well as direct interception, phenomena of initial impact and/or diffuse interception occur that allow particles smaller than the pores in the filtering medium to be retained