There are three basic materials used in the various sediment filters that we carry at Water Value Co. While all three materials achieve the same results – removing sediment from the water – each material has its own characteristics.
Melt-Blown Spun Polypropylene: This sediment filter material uses a graded density to trap sediment particles. Larger particals of sediment entering the filter will be trapped on the outside of the filter media while the smaller particles become trapped deeper inside the filter cartridge. This graded density method greatly increases the effective surface area of the filter cartridge which prolongs the useful life of the cartridge itself. Melt-Blown Spun Polypropylene filters ratings begin at 25 microns on down to 1 micron.
Wound Poly Cord: The idea behind the spun cord sediment filter cartridge is cost. This type of filter cartridge is much less costly to manufacture than any other method. As the name implies, this is simply a polypropylene cord wound around a rigid core. The poly string material is also more resistant to corrosive fluid and materials that the other two types of sediment filter material. These filter cartridges rate at 30 micron on down to 5 micron.
Pleated Polyester: Pleated filter cartridges use a non-woven polyester material that is folded into pleats around a solid core. This pleating characteristic greatly increases the surface area of the filter cartride. The unique characteristic of this type of sediment filter is the fact that it is reusable. You can remove the trapped sediment particles from the inside folds of the pleats and put it back into service several times. This material ranges from 50 microns on down to 1 micron.