Liquid filter bag is a type of industrial filtration product designed to remove contaminants from liquids by passing them through a porous fabric or mesh bag. These bags are widely used in industries such as pharmaceuticals, food and beverage, chemicals, water treatment, and oil & gas to ensure product purity, protect equipment, and meet regulatory standards.

Key Features of Liquid Filter Bags:

Material:

     Made from various filter media such as:

•           Polypropylene (PP) – Cost-effective, chemical-resistant, for general-purpose filtration.

•           Nylon (PA) – Good for high-temperature and high-viscosity liquids.

•           Polyester (PE) – Durable and resistant to abrasion.

•           PTFE  – Chemically inert, ideal for aggressive chemicals.

•          Stainless Steel Mesh – For high-temperature and high-pressure applications.

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• Design & Construction:

•  Seam Types:

• Heat-sealed (for fine filtration, no bypass).

• Sewn seams (for heavy-duty applications).

  
  

 Ring Type:

• Top ring (snap band or metal ring) – Ensures secure fit in filter housings.

• No ring (flanged or cuff style) – For specific housing designs.

  
  

 Bag Styles:

• Single-use (disposable) – Economical for batch processes.

• Reusable (cleanable) – For extended use with proper maintenance.

  
  

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• Applications:

•    Removing particulates from water, chemicals, solvents, oils, and beverages.

•    Pre-filtration to protect pumps, membranes, and other sensitive equipment.

•    Clarification of liquids in food & pharmaceutical production.

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• Compatibility:

•    Resistant to acids, alkalis, solvents, and high temperatures (depending on material).

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• Common Housing Types:

•     Single-bag housings (for small-scale filtration).

•     Multi-bag housings (for high-flow industrial systems).

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Advantages of Liquid Filter Bags:

   ✔ High dirt-holding capacity – Long service life.
   ✔ Cost-effective – Lower operational costs compared to cartridges.
   ✔ Easy to install & replace – Minimal downtime.
   ✔ Customizable – Various sizes, materials, and micron ratings available.

Industries Using Liquid Filter Bags:

•     Water Treatment – Removing sediments and impurities.

•     Food & Beverage – Filtering syrups, oils, and dairy products.

•     Chemicals & Pharmaceuticals – Purifying solvents and APIs.

•     Paints & Coatings – Eliminating particulates for smooth finishes.

•     Oil & Fuel – Protecting machinery from contaminants.