|Polygard® CT Filters|
|What is the surface area of the Polygard CT and Polygard CR filters?||These depth filters are made of wrapped polypropylene layers. This wrapped filter media creates a filter with no geometric repeating structure, but rather a matrix of tortuous paths through the filter. The filter has a graded density, with larger pores at the outside edge, and has tighter pores at the core. It is not possible to accurately measure the surface area of this matrix. A more useful measurement is to perform trials on a feed solution with a small scale version of the filter, and convert the resulting flow rates and pressure differences to "10 inch filter equivalents". In this way, you can use the actual performance of your feed solution with a particular filter to help size the numbers of filters needed for a large batch.|
The graded density matrix of Polygard®-CT cartridge filters allows media with two distinct nominal pore size cutoffs to be wrapped into one cartridge. This technique maximizes dirt-holding capacity while affording extremely low differential pressures, offering a long service life.
Polygard-CT filters are manufactured from melt-blown 100% virgin polypropylene to provide wide chemical compatibility. The filters are highly resistant to pressure fluctuations without demonstrating media migration or contaminant unloading.
Polygard-CT filters are manufactured in a facility whose Quality Management System is approved by an accredited registering body to the ISO® 9000 Quality Systems Standard.
Polygard-CT cartridges are versatile filters designed for a wide range of liquid primary clarification applications. Typical uses include facilities, water pretreatment and primary clarification for beverages, soft drinks and most effluents.
Multiple Formats Available
A full range of filtration areas is available to suit varying application requirements. A variety of connection options are offered for easy adaptation to existing housings.
Small scale filter capsules are available as a selection tool when evaluating several media configurations for use in clarifying process fluids. These devices have been developed to minimize hold-up volume when evaluating multiple media configurations.
|Per 10-inch Cartridge|
|Materials of Construction|
|Core (Standard Version)||Glass fiber reinforced polypropylene|
|Core (Short Version)||Polypropylene|
|End Caps (Flat Gaskets)||Polyethylene|
|Maximum Operating Temperature||80|
|Good Manufacturing Practices||These products are manufactured in a facility which adheres to FDA Good Manufacturing Practices.|
|Non-Fiber Releasing||Component materials meet the "non-fiber releasing" criteria as defined in 21 CFR 210.3 (b) (6).|
|Component Material Toxicity||Component materials meet the criteria of the USP <88> Reactivity Test for Class VI Plastics. These products meet the requirements of the USP <88> Safety Test, utilizing a 0.9% sodium chloride extraction.|
|Indirect Food Additive||All component materials meet the FDA Indirect Food Additive requirements cited in 21 CFR 177-182.|
|Certificate of Quality||Each cartridge is shipped with a Certificate of Quality which summarizes our stringent manufacturing and quality standards.|