Industrial Liquid Filter Bags Manufacturer (PP, PE, NMO & PTFE)
Consion Filter is a leading OEM manufacturer of high-performance Industrial Liquid Filter Bags engineered for diverse liquid clarification, solid-liquid separation, and critical particle removal. Available in micron ratings from 0.5 to 800 microns, our liquid bags utilize needle felts and monofilament meshes made of Polypropylene (PP), Polyester (PE), Nylon (NMO), and PTFE. Constructed with fully welded ultrasonic seams and engineered plastic collars, Consion filter bags completely eliminate fluid bypass, offering superior dirt-holding capacity, optimal flow rates, and long service life across chemical, water treatment, automotive, and food industries.
Standard Size Specifications & Media Options
| Bag Size | Dimensions (Diameter x Length) | Filter Area (m²) | Max Flow Rate (m³/h) | Compatible Materials |
|---|---|---|---|---|
| Size #1 | 7" x 16.5" (180 x 420 mm) | 0.25 m² | 20 m³/h | PP, PE, NMO, PTFE |
| Size #2 | 7" x 32.0" (180 x 810 mm) | 0.50 m² | 40 m³/h | PP, PE, NMO, PTFE |
| Size #3 | 4" x 9.0" (105 x 230 mm) | 0.09 m² | 6 m³/h | PP, PE, NMO |
| Size #4 | 4" x 15.0" (105 x 380 mm) | 0.16 m² | 12 m³/h | PP, PE, NMO |
Why Choose Consion Industrial Liquid Filter Bags?
1. Zero-Bypass Ultrasonic Welded Seams
Thermal welded seams eliminate needle holes and thread shedding common in traditional stitched bags. Paired with pressure-actuated plastic top collars (SDS/Sentinel style), it guarantees a 100% positive seal against the filter vessel.
2. High-Efficiency Gradient Depth Media
Our felt media features a graduated density structure that traps larger particles in outer layers while catching finer contaminants deep within, maximizing dirt loading and extending operating cycles.
3. Broad Chemical & Temperature Compatibility
From chemical-resistant Polypropylene (PP up to 90°C) to high-temperature Polyester (PE up to 135°C) and aggressive acid/alkali PTFE (up to 240°C), we match media to exact fluid chemistry.
The industrial liquid filter bags are manufactured from polypropylene /Polyethylene/nylon fiber filter cloth. The Industrial liquid filter bags material offers high precision and is surface treated with singeing, calendaring, or lamination to prevent fiber shedding. The use of hot-melt seamless jointing technology ensures there is no side leakage.


An optional double-layer or internal folded structure is available to effectively increase the filtration area and enhance dirt-holding capacity. With multi-layer interception of impurity particles, these bags achieve more significant filtration efficiency.
Industrial liquid filter bags provide high cost-effectiveness and are well-suited for filtering medium to low viscosity liquids.
Product features
Resistant to strong acids and alkalis, these bags offer broad chemical compatibility and a tightly constructed design. The outer surface undergoes singing, calendaring, or lamination to eliminate fiber shedding. Hot-melt seamless joint technology prevents side leakage and ensures no precipitation of chemical substances. Featuring a five-line hemming process for secure stitching and deep filtration capabilities, they provide excellent dirt holding capacity. Multi-layer or folded structures deliver superior filtration efficiency compared to single-layer alternatives.
structural material
Filter media
Polypropylene (PP) / Polyethylene (PE) /Nylon
Support ring options
Plastic ring, stainless steel ring, galvanized steel ring
Process
Edge treatment: Full sewing, full welding, edge welding + ring sewing, edge sewing + ring welding
Ring process: Plastic hot melt, steel ring sewing
Bottom design: V-shape, U-shape, flat bottom, cylindrical bottom
Performance:
PH range: 1–13
Filtration rating: 1μm–200μm
Operating temperature: ≤90℃
Forward pressure resistance: <0.5 MPa @ 20°C; <0.4 MPa @ 90°C
Application areas

Food and beverage; bioengineering and pharmaceuticals; petrochemical and chemical processing; automotive manufacturing;

oil and gas; electronics and electroplating; coatings, paints, inks, and related industries.
Parameter size table

Ordering information

Target Industries & Applications
- Water Treatment & Desalination: Pre-filtration for RO systems, industrial wastewater, cooling water, and municipal water purification.
- Chemicals & Petrochemicals: Solvent filtration, acid/alkali liquor clarification, resin processing, and catalyst recovery.
- Paints, Inks & Coatings: Resin particle removal, auto e-coat bath filtration, printing ink clarification, and varnish processing.
- Electronics & Semiconductors: Ultrapure water polishing, PCB plating solution filtration, and photoresist liquid processing.
Frequently Asked Questions (FAQ)
Q1: How do I select between Polypropylene (PP) and Polyester (PE) liquid filter bags?
Choose PP for lower operating temperatures (< 90°C) and applications requiring broad acid/alkali chemical resistance. Choose PE for higher operating temperatures (< 135°C) and where solvent or oil resistance is paramount.
Q2: When should I replace an industrial liquid filter bag?
Filter bags should typically be replaced when differential pressure across the vessel reaches 1.0 - 1.5 bar (15 - 20 psi) to maintain system energy efficiency and prevent media damage.
Get Wholesale Pricing for Industrial Liquid Filter Bags
Contact Consion Filter today for custom micron specifications, housing compatibility checks, and factory direct quotes.
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One-stop filtration manufacturer in China
Kangxun Filtration adheres to the principle of "quality first, customer foremost" and strictly controls product quality through a comprehensive quality management system, continuously providing professional filtration, separation, and purification solutions as well as high-precision filtration products to new and old customers at home and abroad.
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