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中文 (中国)Q: How to select a suitable filter cloth?
A:Filter press is increasingly applied by more and more industries such as metallurgy, mining, printing as an effective and affordable equipment of solid-liquid separation. As an essential factor of filter press, filter cloth plays an important role to ensure clear filtration, dry filter cake and short filter cycle. Filter cloth selection mainly depends on the following:
- Materials
- Yarn Types
- Weave Patterns
Materials
Polyester (PE) filter cloth The prominent property for polyester fabric is its strongest acid resistance among existing synthetic fabrics. It is widely recognized as an outstanding and popular filter cloth for its high operating temperature up to 302℉, high tensile strength and good elongation. Polypropylene fabric Polypropylene fabric is characterized by sleekness, excellent permeability and nil moisture absorption. Its excellent cake release will significantly shorten cleaning time as well as filter cycle. It also has excellent resistances against most acids and alkalis. Its constant working temperature is rated at 280℉. Nylon filter cloth Nylon filter cloth features optimum abrasive resistance and strong alkali resistance. It is often found in miner and coal industries for its best abrasion proof. The only shortage is that its chemical instability under high temperature when it will release toxic substance and pollute the solutions. So, nylon filter cloth is not accepted by food & beverage and pharmaceutical. Vinylon filter cloth Thanks to its strongest alkali resistance, vinylon filter cloth is suitable for caustic condition. Its working temperature is less than 140℉. Please check the next page to know more about Yarn Types.
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