Polypropylene Felt Liquid Filter Bag
The Polypropylene Felt Liquid Filter Bag is made from durable polypropylene needle felt and uses depth filtration to capture solid and gelatinous contaminants throughout the filter media. With high dirt-holding capacity and broad chemical compatibility, it is ideal for chemical processing, industrial water treatment, and other demanding liquid filtration applications.
Build Your Configuration
Full Spec Sheet
| Fiber Type | Needled polypropylene felt |
| Filtration Mechanism | Depth loading |
| Surface Finish | Glazed to reduce fiber release |
| Micron Range | 1 μm - 200 μm |
| Compatibility Focus | Acids, alkalis, salts, and aqueous chemicals |
| Typical Fluids | Chemical solutions, wastewater, plating baths |
Dimensions & Flow Rates
| Size | Diameter | Length | Max Flow | Max dP |
|---|---|---|---|---|
| #1 | 180 mm (7 in) | 410 mm (16 in) | 75 L/min | 4.0 bar |
| #2 | 180 mm (7 in) | 810 mm (32 in) | 150 L/min | 4.0 bar |
| #3 | 105 mm (4 in) | 230 mm (9 in) | 22 L/min | 4.0 bar |
| #4 | 105 mm (4 in) | 380 mm (15 in) | 42 L/min | 4.0 bar |
| #5 | 150 mm (6 in) | 560 mm (22 in) | Contact us | 4.0 bar |
Flow rates are guidelines at 1 bar differential pressure with water at 20 C. Actual capacity varies with viscosity, micron rating, and particle load.
How It Is Built
Polypropylene felt media
Needled PP felt provides stable depth filtration while prioritizing broad chemical compatibility in corrosive service.
Chemical-duty seams
Seam and collar materials are selected to support acid and alkali handling in common industrial filtration systems.
Multiple closure formats
PP rings remain the most common option, while stainless rings and drawstring versions are available for mechanical or installation preferences.
Low-extractable options
For cleaner chemical processes, reduced-extractable media and cleaner packaging can be specified.
Industries & Use Cases
Chemical Processing
- *Acid transfer filtration
- *Alkali solution cleanup
- *Intermediate tank polishing
- *Solids control in process loops
Surface Treatment
- *Plating bath filtration
- *Etching solution cleanup
- *Wash water recirculation
- *Precipitate capture
Water & Wastewater
- *Neutralization tank polishing
- *Sludge side-stream filtration
- *Chemical dosing skid protection
- *Industrial wastewater solids removal
Mining & Metals
- *Leach solution filtration
- *Process chemical cleanup
- *Cooling circuit solids control
- *Utility stream polishing
MADE TO YOUR SPECIFICATION
Customize micron rating, dimensions, ring style, seam construction, and other details. MOQ starts from 100 pcs per SKU.
Submit Your Specification ->Documentation
Choose polypropylene when chemical compatibility is the priority, especially in acid and alkali service where polyester may not be the best fit.
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or Sample
Describe your application, flow rate, and micron target. Our technical team responds within one business day with a recommendation and pricing.