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Crosible’s new range for high temperature applications, where hot embers and high temperature surges occur.
CrosTex will meet the most stringent regulatory standards for emission control. The average pore size of CrosTex is between 0.05 and 1.0 micron. These microscopic pores are created in a three-dimensional membrane structure. The pores are smaller than most airborne or waterborne particles, yet large enough to allow for the passage of gas molecules.
Due to the 99, 99% efficiency rate of the membrane, it is not uncommon to achieve emission levels of 0.01 mg/m³. Test results using CrosTex showed forty times fewer emissions than the standard needlefelt media.
Depth-filtration verses Surface-filtration.
Conventional Depth Filtration
When using conventional needlefelt media, the initial layer of dust penetrates to a certain depth into media and then a layer of dust accumulates on the surface. The initial layer of dust is permanently trapped below the surface of the media. This works effectively in the initial stages of the filter process but later it causes a pressure drop. It could take hours or weeks to occur but at that point the advantages of CrosTex become apparent.
Depth filtration may not be effective on submicron particles, where bleed-through emissions cause loss of product. This is known as “puffing” – pin-hole perforations caused by the cleaning process.
CrosTex Surface Filtration
CrosTex allows a consistent air-flow rate throughout the life of the filter bag because the filtration process occurs on the surface of the media. The ePTFE membrane prevents dust particles penetrating the fabric and therefore avoids a pressure drop during the lifespan of the filter bag. CrosTex permeability rate is 8-12 CFM, which is much lower than conventional needlefelt (25-70 CFM) but the difference is more than compensated due to no pressure drop occurring.
CrosTex has excellent dust-cake release properties.
The ePTFE membrane has the smoothest, non-stick surface. Its hydrophobic property helps to discharge sticky moist dust particles which on conventional media would lead to blinding of the media.
Baghouses using CrosTex filter bags require 30% less aggressive pulse to discharge the dust. Pulsing at 4-5 bars instead of 6-7 bars results in less mechanical damage to the filter bag.
With minimal pressure drop during the life of the filter bag, CrosTex operates consistently at a higher air flow rate. The average 1:1 m³/m² air-to-cloth ratio with conventional media needs to be maintained but with CrosTex, it can be increased to 1:1,5 m³/m².
Where CrosTex filter bags are specified for a new baghouse, the size of the baghouse can be reduced, which means less capital and operational costs, ensuring greater profitability.
Although CrosTex filter media is more expensive than conventional filter media, the benefits outweigh the initial costs because CrosTex has a longer life expectancy.
Crosible leads in innovation, quality service and technical expertise. We are committed to provide effective solutions to the problems posed by today’s sophisticated filtration installations.
Dust Filter Bags
Today’s stricter environmental control calls for improved dust filter media and design. Crosible Filtration meets these requirements with the best filter media on the market. Crosible’s dust filter bags are made from a wide selection of filter media.
Polyester and Acrylic media are the most common dust filter media for low temperatures. PPS, Aramid/Nomex, Kermel Tech, and P 84 and glass are used for higher temperatures. Products include Water and Oil repellency for sticky / moist dusts, and PTFE dipped treatments for acid resistant applications.
Often used to prevent bags from falling out of irregular tube sheets, and improve the snap band seal.
Dust filtrate bags with a fused seam. Lower emissions due to no sewing holes.
Stronger and leak free seam
Crosible cages are custom built in 10 / 12 / 16 / 20 longitude wires using mostly 3.15 and 4mm steel wires.
A variety of stainless steel and carbon steel are used with various finishings:
Cage top designs vary from:
In most cases an end cap is used for the base of our cages. For longer cages we design a knuckle joint, or sometimes a ring joint to extend the cages.
Elongated cages are provided with special knuckle joints or ring joints. Dalamatic cages and Filcomatic cages are available ex-stock. Cages can be custom built to suit any requirement.
Cages, custom made to suit any baghouse application