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FEATURES & BENEFITS COMPARISON PAPER VS. FELT |
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800-423-7947 |
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Paper is considered a lower initial cost item. Although it can be cleaned, there is a low limit of the number of cleanings. Higher overall cost. |
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PRICE |
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Can be competitive in price though sometimes higher initial cost. If cleaning and reusing is achieved, overall cost will be less than paper. |
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Paper has a smooth surface, therefore less capacity than a fibrous felt material. Shorter life span, more servicing and maintenance. |
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DIRT HOLDING |
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More surface fibers on felt for greater dirt holding capacity. Longer operating time before servicing, less maintenance. |
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In order for paper media to be equivalent to felt media in dirt holding capacity, you need four times the surface area. |
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FILTER AREA |
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One-fourth the surface area needed to be the same as paper. |
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Paper will rip and tear when wet and usually pleats will split, opening up a large area for bypassing. |
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STRENGTH |
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Stronger and will accept moisture. Better equipment protection. If bypassing occurs, it would be due to small holes that could eventually be covered by contaminant. |
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Although paper claims to be washable, it will lose strength and should not be cleaned more than 3 times. After the first cleaning, paper loses 25% of dirt holding capacity and 10% after each additional cleaning. |
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CLEANING |
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Can be cleaned effectively by compressed air, vacuuming, or by washing in mild soap & water. With regular maintenance, cleaning can be accomplished 10 or more times. |
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Pressure loss through paper is unpredictable. Difficult to schedule proper shut downs for cleaning and replacing. |
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PRESSURE DROP |
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Pressure loss is gradual and one can predict reaching a maximum loss so shut downs can be scheduled. |
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A variety of efficiencies are available, but with some limitations. |
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EFFICIENCY |
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Efficiencies and a variety of media for chemical and temperature compatibility. |
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PAPER MEDIA |
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FELT MEDIA |