91´óÉñ

applications?

XPleat GF

• General Water Services?
• Water-based Adhesives?
• Fine Process Fluid Filtration?
• Processes that Require Excellent Flow Rates?

XPleat PES

• General Water Services?
• Fine Process Fluid Filtration?
• Processes that Require Excellent Flow Rates?
• Post DI Filtration?
• Bacteria Control in Cooling?Tower Make-up Water Loop?

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chemical compatibility?

91´óÉñmanufactures a series of melt-blown polypropylene depth filters as well as pleated filters made from a variety of microfiber and polymeric membrane materials. This wide array of cartridge media and elastomer materials ensure the right filter and configuration for your application. 91´óÉñfilter cartridges are designed and manufactured for their resistance to a wide range of chemical solutions.?

How to Use the Chemical Compatibility Table:?

R = Resistant. No significant change was observed in flow rate or bubble point of the membrane following 48 hours exposure to the test fluid at 77¡ãF (25¡ãC).?

LR = Limited Resistance. Moderate changes in physical properties or dimensions of membrane were observed. Filter may be suitable for short term, noncritical use.?

NR = Not Resistant. The membrane is basically unstable. Extensive shrinkage or swelling of the membrane may occur. The filter may gradually weaken or partially dissolve after extended exposure.?

O = Insufficient Data. Testing on your own solution is recommended.?

chemical resistance?

91´óÉñpolypropylene cartridge filters are made of pure polypropylene, an inert material which is compatible with a wide range of chemicals. No resins, binders, antistatic agents, or other materials are added during the manufacturing process. 91´óÉñpolypropylene cartridge filters are manufactured with a proprietary melt-blown microfiber technology. This unique process?thermally welds microscopic fibers of polypropylene into a compact matrix which resists fiber sloughing and particle unloading into the filtrate, even under extreme mechanical and chemical actions. The manufacturing operation is precisely controlled to yield cartridge filters with consistent micron ratings and true graded density for high particle retention and longer life.?

How to Use the Chemical Resistance Guide:?

R = Recommended for use.?

NR = Not recommended for use.?

NA =?No?available test data. User should run test prior to use.?

frequently asked questions?

what are the XPleat filters??

The XPleat filters come in glass fiber media (XPLT-GF) and polyethersulfone (XPLT-PES) membrane media. They have absolute ratings but are a lower cost point because integrity?testing is performed using statistical analysis on a limited number of samples from each batch¡ªas opposed to other product lines where each individual filter cartridge is integrity tested.?

when should I use a pleated or depth filter??

Depth filters are primarily nominally-rated with 0.5 ?m ¨C 200 ?m ratings, while the pleated filters are primarily absolute-rated between 0.03 ?m ¨C 40 ?m. Depth filters are typically cheaper and have higher dirt holding capacities. As such, they are often used as prefilters to the final pleated filters and are often used when feed waters have a wide particle size distribution and/or higher levels of suspended solids, such as RO prefiltration, Oil & Gas, and chemical processing.?

Pleated filters, with their lower and more precise micron ratings are used when the particle size distribution is much narrower and for absolute removal of smaller particles, as is the case of pharmaceuticals, microelectronics, and vent filtration. Furthermore, pleated filters have lower pressure drops for comparable flow rates and micron ratings than depth filters due to their higher porosities and thinner media.?

what is the direction of fluid flow??

Direction of fluid flow for all 91´óÉñpleated filter cartridges?is from outside to inside.?