PTFE Membrane filter cartridge
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The Nylon Pleated Filter Cartridge is a high-performance filtration solution designed for applications requiring excellent chemical compatibility, high dirt-holding capacity, and precise particle retention. Made with a hydrophilic nylon 6 or nylon 66 membrane, this filter cartridge provides excellent flow rates and superior particle removal efficiency, making it ideal for water filtration, food and beverage processing, electronics, and pharmaceutical industries.
Unlike many other membrane types, nylon membranes are naturally hydrophilic, which eliminates the need for wetting agents that could interfere with sensitive downstream processes. This makes the nylon pleated filter cartridge a preferred choice for applications that demand clean, non-contaminating filtrates.
Key Features of Nylon Pleated Filter Cartridge
✅ Hydrophilic Nylon Membrane: Requires no surfactants or wetting agents.
✅ High Dirt-Holding Capacity: Extended service life reduces change-outs.
✅ Excellent Chemical Compatibility: Compatible with a wide range of chemicals and solvents.
✅ Thermally Bonded Construction: No adhesives or binders used in manufacturing.
✅ Consistent Filtration Efficiency: Rated at 0.1 to 10 microns.
✅ Wide Range of Sizes: Available in 10”, 20”, 30”, and 40” lengths.
✅ Integrity Testable: Supports bubble point and diffusion testing.
Chemical Group | Examples | Compatibility |
---|---|---|
Acids (Dilute) | Acetic acid, Citric acid, Phosphoric acid (≤10%) | ✔ Excellent |
Alcohols | Methanol, Ethanol, Isopropyl alcohol | ✔ Excellent |
Bases | Sodium hydroxide (≤1%), Ammonium hydroxide | ✔ Good |
Hydrocarbons | Hexane, Heptane, Toluene | ✔ Good |
Ketones | Acetone, Methyl ethyl ketone | ✔ Moderate (short-term use) |
Esters | Ethyl acetate, Butyl acetate | ✔ Limited (check application) |
Organic Solvents | DMSO, DMF (low temp) | ✔ Moderate |
Oxidizing Agents | Hydrogen peroxide (>10%), Nitric acid | ❌ Not Recommended |
Halogenated Solvents | Chloroform, Dichloromethane | ❌ Avoid Use |
Nylon pleated cartridges are widely used in:
RO pre-filtration
Point-of-use systems
High-purity water applications
Their low extractables and hydrophilic nature ensure that no foreign substances leach into the filtrate, providing stable water quality.
Ideal for:
Beer, wine, and juice clarification
Bottled water filtration
Syrup and liquid sugar processing
Nylon membranes do not contain wetting agents, ensuring no taste or odor transfer into the beverage.
Used in:
Aseptic filling
Sterile water for injection (WFI)
Biological and serum filtration
Its ability to undergo integrity testing and sterilization makes it suitable for high-standard pharmaceutical processes.
The high cleanliness and consistent filtration of nylon filters make them ideal for:
Photolithography rinse water
Process chemical filtration
Etching and stripping solutions
Nylon filters offer precise retention and are used for:
HPLC solvent filtration
Sample preparation
Air/gas filtration in lab setups
Size of Nylon Pleated Filter Cartridge
We offer a variety of lengths and end cap types:
Lengths: 10″, 20″, 30″, 40″
End Caps: DOE, 222/Flat, 222/Fin, 226/Flat, 226/Fin
These standard configurations ensure compatibility with most filter housings used globally.
Parameter | Description |
---|---|
Filter Media | Hydrophilic Nylon 6 or Nylon 66 membrane |
Support Layer | Polypropylene |
End Caps | Polypropylene |
Core & Cage | Polypropylene (or stainless steel on request) |
Micron Ratings | 0.1, 0.22, 0.45, 1, 3, 5, 10 µm |
Outer Diameter | 68 mm (2.7″) or 69 mm (2.75″) |
Lengths | 10″, 20″, 30″, 40″ |
Maximum Operating Temperature | 80°C (176°F) |
Maximum Differential Pressure | 4.2 bar @ 25°C; 2.1 bar @ 80°C |
Sterilization | Autoclavable at 121°C for 30 minutes |
End Connections | DOE, 222/Fin, 222/Flat, 226/Fin, 226/Flat |
Gasket/O-Ring Materials | EPDM, Silicone, Viton, PTFE-encapsulated Viton |
Feature | Nylon | PES | PTFE | PVDF |
---|---|---|---|---|
Hydrophilic | Yes | Yes | No (hydrophobic) | Slightly hydrophobic |
Extractables | Low | Medium | Very low | Medium |
Chemical Resistance | High | Medium | Very high | High |
Temperature Resistance | Moderate | Moderate | High | High |
Cost | Moderate | Low | High | High |
Nylon offers a balanced performance for systems needing strong chemical resistance, hydrophilic nature, and cost-effective operation.
Micron Rating
Select based on the particle size you want to remove. For sterile filtration, use 0.22 µm; for prefiltration, 1–5 µm is typical.
Length and Configuration
Match with your existing filter housing – check DOE vs. 222/Fin or 226/Flat configurations.
Flow Rate Requirements
Check the flow rate curves provided in the product brochure to select appropriate length and number of cartridges.
Chemical Compatibility
Nylon is suitable for most aqueous and organic solutions, but always check compatibility charts for specific acids or oxidizers.
Regulatory Compliance
Ensure filters meet required certifications such as FDA 21 CFR, EU food contact directives, or USP Class VI if used in regulated environments.
Pre-rinse the Cartridge: To remove any loose particles from manufacturing.
Install Vertically: Ensures proper flow and full utilization of the surface area.
Monitor Pressure Drop: Replace cartridge when differential pressure exceeds 2.5–3 bar.
Sterilization: Can be autoclaved or sanitized with hot water or steam in place (SIP).
Our Nylon Pleated Filter Cartridges are manufactured under strict quality control and comply with:
ISO 9001:2015 Quality Management
FDA CFR Title 21 Compliant Materials
USP Class VI Biological Reactivity Tests
European Directive 1935/2004 for Food Contact
Each cartridge undergoes integrity testing and is individually serialized for traceability.
Standard Packaging: Individually sealed in a polybag, then packed in a cleanroom-grade carton.
Bulk Orders: Palletized with protective wrapping.
Lead Time: 7–14 days depending on order quantity and customization needs.
Shipping: Worldwide via air, sea, or courier service.
We offer a wide range of customization options:
Private labeling
Custom length or diameter
End cap and gasket material selection
Pre-flushing or pre-sterilization
OEM and ODM services
Contact us for tailored solutions to fit your filtration system and branding needs.
15+ Years of Manufacturing Experience
Modern Cleanroom Production Facilities
Global Export to Over 40 Countries
Strong R&D Capabilities for Custom Solutions
Low MOQ & Competitive Pricing
Fast Turnaround & Responsive Service
Our factory is ISO-certified, and all products undergo stringent quality checks to ensure consistency and performance.
Q1: What’s the difference between Nylon 6 and Nylon 66 membranes?
A1: Nylon 66 offers slightly higher temperature and solvent resistance, while Nylon 6 is more flexible and widely used in general applications.
Q2: Can nylon pleated filters be used with alcohol or acids?
A2: Yes, they have good resistance to alcohols and weak acids. For strong acids, verify compatibility before use.
Q3: Are your nylon filters safe for food contact?
A3: Absolutely. All components comply with FDA and EU food-grade standards.
Q4: What is the shelf life of the cartridge?
A4: Typically 2–3 years when stored in a clean, dry, and cool environment in original packaging.
Q5: Can I request a sample before bulk purchase?
A5: Yes. We offer free samples to qualified buyers for testing.
Ready to place an order or request a sample?
Contact us now to get a free quote within 24 hours.
Email: ljj2914@163.com
Phone/WhatsApp: +86-123-4567-8901
Location: Zhejiang, China
MOQ: 10 pcs
Lead Time: 5–14 days
Let us help you build a reliable and cost-effective filtration system with our premium nylon pleated filter cartridges.
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