Industrial Filter Bags for Water Treatment & Process Liquid Filtration
PP felt, PE felt, nylon mesh and reinforced washable filter bags for wastewater reuse, RO pretreatment, chemical processing, palm oil filtration and industrial liquid filtration.
As a professional filter bag manufacturer, Ecofiltrone supplies industrial filter bags, liquid filter bags, wastewater filter bags, RO pretreatment filter bags and washable filter bags with stable quality and customized solutions.
- PP / PE / Nylon Mesh / PTFE materials available
- Size #1, #2, #3, #4, #5 available
- Micron ratings for coarse to to fine filtration
- Plastic ring / steel ring / stainless steel ring options
Common Filter Bag Problems in Industrial Filtration Systems
Filter Bags Fail from the Bottom
Bottom seam tearing or blowout causes dirty fluid bypass and poor filtration.
Filter Bags Clog Too Quickly
High solids loading or wrong micron rating leads to rapid pressure drop increase.
Poor Cleaning Performance
Difficult to remove cake; media structure or cleaning method not suitable.
High Differential Pressure
Pressure drop continues to rise, reducing flow and increasing operating cost.
Bag Deformation After Washing
Repeated cleaning causes bag elongation, shrinking or loss of shape stability.
Filter Bag Types We Supply
PP Felt Filter Bags
✔Best for:
Industrial water treatment, wastewater reuse, RO pretreatment
✔Advantages:
Chemical resistance, fine particle filtration, cost-effective
PE Filter Bags
✔Best for:
Paint, resin, oil, chemical process liquids
✔Advantages:
Better mechanical strength, abrasion resistance
Nylon Mesh Filter Bags
✔Best for:
Washable filtration, coarse particle removal, reusable systems
✔Advantages:
Easy to clean, reusable, stable mesh opening
Reinforced Washable Filter Bags
✔Best for:
Wastewater reuse, high-frequency cleaning, bottom-failure applications
✔Advantages:
Stronger bottom seam, longer service life, better shape stability
Application Solutions
Wastewater Reuse
Challenge: High solids loading, frequent washing
Recommended: Reinforced washable filter bags
RO Pretreatment
Challenge: Fine particles before cartridge filters and membranes
Recommended: PP felt filter bags
Industrial Water Filtration
Challenge: Suspended solids and process particles
Recommended: PP / PE filter bags
Palm Oil Filtration
Challenge: Oil impurities, viscosity variation
Recommended: PE filter bags
Chemical Processing
Challenge: Chemical compatibility and stability
Recommended: PP / PE / PTFE filter bags
Food & Beverage Filtration
Challenge: Clarity and particle removal
Recommended: PP felt filter bags
Filter Bag Material Selection Guide
| Material | Chemical Resistance | Temperature Range (°C) | Mechanical Strength | Typical Applications |
|---|---|---|---|---|
| PP (Polypropylene) | Good – acids, alkalis, salts | 80 – 100 | Good | Water treatment, wastewater, RO pretreatment |
| PE (Polyester) | Good – oils, solvents, resins | 120 – 140 | Very Good | Paint, resin, oil, chemical process liquids |
| Nylon Mesh | Environment resistance, strength | 160 – 180 | Good | Washable filtration, coarse particle removal |
| PTFE (Teflon) | Excellent – most chemicals | 230 – 260 | Excellent | Aggressive chemicals, high temperature filtration |
How to Select the Right Micron Rating?
Filter Bag Sizes & Ring Options
| Filtration Requirement | Micron Rating |
|---|---|
| Coarse particle removal | 100–800 μm |
| General liquid filtration | 25–100 μm |
| Fine particle control | 1–25 μm |
| High solids loading | Depends on solids type and pressure drop balance |
Please balance filtration requirement and pressure drop.
| Size No. | Diameter × Length | Typical Use |
|---|---|---|
| Size #1 | 180 × 430 mm / 7" × 17" | Standard industrial bag housings |
| Size #2 | 180 × 810 mm / 7" × 32" | High flow applications |
| Size #3 | 105 × 230 mm / 4" × 9" | Compact housings |
| Size #4 | 105 × 380 mm / 4" × 15" | Compact housings |
| Size #5 | 150 × 560 mm / 6" × 22" | Medium flow applications |
Plastic Ring
Cost-effective, lightweight
Galvanized Steel Ring
Good strength, non-rust
Stainless Steel Ring
Excellent corrosion resistance
Filter Bag Material Selection Guide
Material Options
PP, PE, Nylon Mesh, PTFE and more
Micron Rating Options
1 μm–800 μm, customizable
Ring Type Options
Plastic, galvanized steel, stainless steel
Reinforced Bottom Design
Stronger bottom seam to prevent blowout
Sewn or Welded Seam
Multiple seam types available
OEM Packaging
Private label and custom packaging
Filter Bag Material Selection Guide
Problem
Bottom seam tearing after repeated cleaning.
Observed Signs
- Bag elongation and deformation
- Frequent washing increases cleaning difficulty
- Rising differential pressure and reduced flow
- Particles bypass due to bottom failure
Suggested Solution
- Use reinforced washable filter bag
- Stronger bottom seam and suitable felt density
- Confirm cleaning method and frequency
- Select proper micron rating for the system
FAQ
What is the difference between PP and PE filter bags?
PP offers strong acid and alkali resistance for water treatment, while PE provides higher mechanical strength for oils, paints and process liquids.
Which filter bag is suitable for wastewater reuse?
Reinforced washable PP filter bags are commonly used for high solids and frequent cleaning.
Why do filter bags fail from the bottom?
Bottom seam failure can be caused by solids accumulation, repeated washing and insufficient seam strength.
Are filter bags washable?
Nylon mesh bags and some reinforced washable filter bags are suitable for repeated cleaning, depending on the application.
How do I select the correct micron rating?
Choose micron rating based on particle size, solids loading, flow rate and pressure drop balance.
Can you customize size and ring type?
Yes. Common options include size #1, #2, #3, #4, #5 and plastic, galvanized steel or stainless steel rings.
Need Help Selecting the Right Filter Bag?
Send your application, liquid type, micron rating, flow rate, temperature, pressure and cleaning method. We will recommend the suitable filter bag material, size and design.