Filter bags and napkins are an effective technologically necessary barrier—type consumable element designed for use in the structure of filtration equipment (chamber, chamber-membrane presses), in order to retain on its fabric surface solids or fractions that need to be removed from the liquid to be cleaned.
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| Material | Operating temperature (℃) | Maximum temperature (℃) | Wear resistance | Resistance to hydrolysis | Alkali resistance | Acid resistance | Resistance to oxidizability |
|---|---|---|---|---|---|---|---|
Polypropylene (PP) |
Operating temperature (℃): < 90 |
Maximum temperature (℃): < 100 |
Wear resistance: Satisfactory |
Resistance to hydrolysis: Excellent |
Alkali resistance: Excellent |
Acid resistance: Excellent |
Resistance to oxidizability: Satisfactory |
Polyamide (PA) |
Operating temperature (℃): < 130 |
Maximum temperature (℃): < 150 |
Wear resistance: Good |
Resistance to hydrolysis: Excellent |
Alkali resistance: Good |
Acid resistance: Satisfactory |
Resistance to oxidizability: Satisfactory |
Polyester (PE) |
Operating temperature (℃): < 130 |
Maximum temperature (℃): < 150 |
Wear resistance: Good |
Resistance to hydrolysis: Satisfactory |
Alkali resistance: Satisfactory |
Acid resistance: Good |
Resistance to oxidizability: Good |
Polyphenylene Sulfide (PPS) |
Operating temperature (℃): < 190 |
Maximum temperature (℃): < 200 |
Wear resistance: Good |
Resistance to hydrolysis: Excellent |
Alkali resistance: Excellent |
Acid resistance: Excellent |
Resistance to oxidizability: Satisfactory |
Aromatic amide (Aramid) |
Operating temperature (℃): < 204 |
Maximum temperature (℃): < 220 |
Wear resistance: Good |
Resistance to hydrolysis: Satisfactory |
Alkali resistance: Good |
Acid resistance: Satisfactory |
Resistance to oxidizability: Satisfactory |
Polyimide (P-84) |
Operating temperature (℃): < 240 |
Maximum temperature (℃): < 260 |
Wear resistance: Good |
Resistance to hydrolysis: Satisfactory |
Alkali resistance: Satisfactory |
Acid resistance: Excellent |
Resistance to oxidizability: Excellent |
Glass Fiber (GL) |
Operating temperature (℃): < 260 |
Maximum temperature (℃): < 280 |
Wear resistance: Satisfactory |
Resistance to hydrolysis: Satisfactory |
Alkali resistance: Satisfactory |
Acid resistance: Excellent |
Resistance to oxidizability: Excellent |
PTFE |
Operating temperature (℃): < 260 |
Maximum temperature (℃): < 280 |
Wear resistance: Excellent |
Resistance to hydrolysis: Excellent |
Alkali resistance: Excellent |
Acid resistance: Excellent |
Resistance to oxidizability: Excellent |