CARTRIDGE FILTER ELEMENT

摘要

A disposable filter cartridge is made of a perforated tubular core (woven wire mesh) over which is wound a layer of nonwoven fibre material in a spiral. The fibres have diam. of 0.01 to 100 mu and can be resin-impregnated or treated chemically. The fibrous filter material is held together under pressure by a sleeve of open-mesh or by a wrapping of roving or webbing. The cartridge gives uniform filtering and has stable dimensions.