RealMax® Spunbond Filter Cartridge are made from glue free thermally bonded fibers of polypropylene. It is designed to provide significantly superior service life and assure high dirt-loading capabilities, while maintaining a consistent filtration efficiency.
It doesn't include any chemical adhesives. Fiber forms a structure of three-dimensional micro- aperture after random bonding in vacuum as a unit of surface, interior and coarse filter.
The Fiber can have excellent filtration and dirt holding capacity in the cartridge because of its density. With little pressure difference, outside sparse and inside dense apertures and high dirt holding capacity, it can effectively remove the suspended solids, particles, rust and other impurities in the liquid which result in a longer life time.