How to Select a Filter Cartridge for Whole House Sediment Removal from qocsuing's blog

How to Select a Filter Cartridge for Whole House Sediment Removal

Cartridge filters have the advantage of being low cost, easy to install, use no electricity, and generate no wastewater.Get more news about Smmss Non-woven Non-woven Fabric Production Equipment,you can vist our website!

However, the disadvantages of cartridge filters are that eventually, sediment will plug up the Water Filter Cartridge membrane's pores, cause pressure drop, and result in a loss of water pressure in the home or business.

Cartridge filters, however, are easy to change and, in the case of some pleated cartridges, are easy to clean and re-use.

Cartridge filters for sediment removal come in many sizes and types but generally fall into two kinds: Surface Filter Cartridges and Depth Filter Cartridges.

Cartridge filters are often installed in series with a larger micron-rated cartridge filter first, followed by smaller micron-rated filters, down to 1 micron.
Sheets of polypropylene, nylon or Teflon, etc., are pleated and bonded on ends to provide a high filtration area. The contaminants are trapped on the sheet's surface, forming a layer that will eventually aid filtration in itself.

As the pressure drop increases, the filter cartridge can be removed from the filter housing and washed off at some point.

One advantage of surface filters is they can be washed off, and the cartridge can be reused.

While pleated filters are often used as coarse pre-filters, usually in the range of 30 – 500 microns, they can also be used in sub-micron applications. They provide finer and consistent filtration due to their definable pore size and structure.

Filtration ratings for pleated surface filter cartridges can be anywhere between 50-micron down to 0.04-micron absolute, generally used in semiconductors or pharmaceutical water filtration.

Compared to a depth filter, a surface (pleated) filter will have a much higher filtration area to compensate for the absence of depth. Filtration areas can go as high as 11 square feet in a regular 10″ x 2.5″ cartridge or higher.

Depth filters are commonly seen as wound string, spun, or “melt-blown” cartridges that trap particles of larger size on the surface and smaller particles under the surface down to the center core.

They work best when a variety of particle sizes are being filtered. Depth filters remove more sediment and hold more sediment in general, without losing pressure, than a surface filter cartridge.