For higher efficiency and longer life, any needle felt material can be combined to double or triple layer bags; coarse felt inside to finer felts outside. All combinations and configurations are possible except the Plastic Seal Flange (P). See Needle Felt for available materials.
For longer life, a polyester felt (AP) bag can be provided with an extra thick and highly porous inner layer. Working as a pre-filter it will catch a great amount of solids.
Designed for vertical flow. The cylindrical wall is impermeable. Depending on the contaminant to be absorbed or adsorbed, the bag can be filled with different materials such as polypropylene fibres (PP), activated carbon (AK) etc. Fabricated unfilled bags code (XX) may be used for specific customer requirements.
Available with Snap Collar Ring (S or SS).