How Filter Bags Work

Liquid enters the filter housing and flows into the filter bag.
Particles are trapped either:

• Inside the depth layers (PP/PE), or
• On the surface (mesh/PTFE/metal)

Clean liquid exits, while contaminants remain inside the bag.

Common Types of Filter Bags

1. PP (Polypropylene) Filter Bags

• Best for general-purpose filtration
• Excellent chemical resistance (acids & alkalis)
• Cost-effective and widely used

2. PE (Polyester) Filter Bags

• Stronger than PP with better abrasion resistance
• Good for higher temperature applications
• Ideal for fine particle filtration

3. PTFE Filter Bags

• Premium material for extreme conditions
• مقاunt to strong chemicals and high temperatures
• Used in corrosive and high-purity processes

4. Nylon (NMO) Mesh Filter Bags

• Monofilament mesh for precise filtration
• Reusable and easy to clean
• High flow, low pressure drop

5. Stainless Steel Filter Bags

• Fully reusable and durable
• Withstand high pressure and temperature
• Suitable for harsh industrial environments

Key Features & Benefits

• Wide Material Options – Match different chemical conditions
• Multiple Micron Ratings – From 1 µm to 2000 µm
• High Dirt Holding Capacity – Longer service life
• Easy Replacement – Quick installation and removal
• Cost Efficiency – Disposable or reusable options
• Consistent Filtration Performance – Stable particle removal

التطبيقات

Water Treatment
Pre-filtration for RO, UF systems
Cooling water and wastewater

Oil & Gas
Fuel filtration
Lubricant cleaning

Chemical Industry
Corrosive liquid filtration
Catalyst recovery

Food & Beverage
Edible oil filtration
Syrup, juice, and beer processing

Pharmaceutical
High-purity liquid filtration
Sterile process pre-filtration

Power & Industrial
Boiler feed water
Process fluid protection

How to Customize Filter Bags

1. Material Selection

• PP / PE → cost-effective
• PTFE → high-end corrosion resistance
• Nylon → precision filtration
• SS → extreme durability

2. Micron Rating

• 1–10 µm → fine filtration
• 25–100 µm → medium filtration
• 200+ µm → coarse filtration

3. Size Options

• Standard: #1, #2, #3, #4, #5
• Custom diameters & lengths available

4. Top Ring Type

• Plastic ring (PP/PE)
• Stainless steel ring
• Drawstring type

5. Sealing Design

• Welded seams (no leakage)
• Sewn seams (cost-effective)

6. Special Features

• Oil-absorbing bags
• High-flow pleated bags
• Multi-layer filtration bags
• FDA-grade materials

Selection Tips (From Real Projects)

• High dirt load? → Choose PP depth filter bags
• Need precision? → Use nylon mesh (NMO)
• High temperature or aggressive chemicals? → Go with PTFE
• Want long-term reuse? → Stainless steel is best
• Food/pharma? → Ensure FDA compliance

FAQ

1. What is the difference between PP and PE filter bags?
PP has better chemical resistance, PE has better strength.

2. Are filter bags reusable?
Mesh and metal bags are reusable; PP/PE are usually disposable.

3. What micron rating should I choose?
Depends on particle size and downstream equipment needs.

4. How often should filter bags be replaced?
When pressure drop increases or flow rate decreases.

5. Can filter bags be customized?
Yes, fully customizable in size, material, and micron rating.