Multi-Purpose Bag Filter: A Versatile Filtration Solution

What Is a Bag Filter?

Working Principle

1. Flow Path:
   • Liquids enter through the inlet, passing through the filter bag supported by the metal basket.
   • Cleaned liquid exits via the outlet, while contaminants are trapped within the bag.
   • Once the bag is saturated, it can be easily replaced, allowing the system to resume operation immediately.
2. Key Components:
   • Filter Bag: Available in various materials (polypropylene, polyester, nylon) and micron ratings (1–500 microns) to suit different filtration needs.
   • Metal Basket: Constructed from stainless steel (304/316) for corrosion resistance and structural integrity.
   • Housing: Designed for pressure resistance, with quick-clamp closures for easy maintenance.

Advantages of Bag Filters

1. Versatility:
   • Suitable for coarse filtration, fine filtration, and even deep bed filtration (when paired with specialized media).
   • Handles liquids with high viscosity, high solid content, or sensitive components.
2. Operational Efficiency:
   • Low energy consumption due to optimized flow design.
   • High flow rates (up to 100 m³/h per housing) with minimal pressure drop.
3. User-Friendly Design:
   • Tool-free bag replacement reduces maintenance time.
   • Compact size allows installation in tight spaces.
   • Closed-system operation prevents spillage and contamination.
4. Cost-Effective:
   • Reusable housing reduces capital expenditure.
   • Disposable filter bags eliminate cleaning costs.
   • Scalable design: Add more housings in parallel for increased capacity.

Applications Across Industries

• Food & Beverage: Clarifying juices, filtering oils, and removing particulates from dairy products.
• Pharmaceuticals: Sterile filtration of liquids, removal of activated carbon, and pre-filtration for APIs.
• Water Treatment: Pre-filtration for RO systems, removal of suspended solids in wastewater.
• Chemical & Petrochemical: Filtration of solvents, paints, and lubricating oils.
• Paints & Coatings: Removing agglomerates and ensuring uniform product quality.

Deep Bed Filtration Capability

• Trapping fine particles (down to 1 micron)
• Handling high dirt-holding capacities
• Providing consistent effluent clarity without frequent bag changes