Bleached Natural Cotton String Wound Filter Cartridge

Product Overview

Our Bleached Natural Cotton String Wound Filter Cartridge is a premium-grade cotton wound filter cartridge designed for high-purity liquid filtration in demanding environments. Made from bleached natural cotton yarn and precisely wound for optimal depth filtration, this cotton string wound filter cartridge offers excellent chemical compatibility and can withstand temperatures up to 120°C (248°F)—significantly higher than standard polypropylene (PP) filter cartridges, which typically tolerate only up to 60–80°C. This makes it a preferred choice for food & beverage, pharmaceutical, and other applications where higher thermal resistance and natural materials are essential.

Key Features:

✅ Material: Bleached natural cotton

✅ Temperature Resistance: Up to 120°C (248°F)

✅ Chemical Compatibility: Compatible with oils, solvents, and mild chemicals

✅ Filtration Efficiency: High dirt holding capacity with low media migration

✅ Applications: Food & beverage, pharmaceutical, and water treatment

Specifications:

Tech Support

Our team is available for troubleshooting, technical assistance, and to help you select the right filtration solutions for your applications.

Applications

✅ Food & Beverage: Used for filtering juices, beer, wine, and edible oils to ensure the safety and purity of natural materials.

✅ Pharmaceutical: Used for filtering pharmaceutical solutions, injection water, and solvents to ensure high purity and sterile conditions.

✅ Water Treatment: Used for filtering process water and drinking water to remove suspended solids and particles, ensuring water safety.

✅ Industrial Manufacture: Used for filtering lubricants, hydraulic oils, and solvents to extend equipment service life.

✅ Oil & Gas : Used for natural gas filtration to remove particles and impurities, protecting downstream equipment.

✅ Marine: Used for filtering ship fuel and lubricating oils to ensure stable equipment operation.

✅ Metallurgy: Used for filtering metalworking fluids to remove metal chips and impurities, improving processing efficiency.

✅ Pulp & Paper: Used for filtering process water in papermaking to remove fibers and impurities, improving paper quality.

❓ Frequently Asked Questions (FAQ)

Q1: What is the difference between a cotton wound filter cartridge and a PP string wound filter cartridge?
A: Both are string wound filter cartridges made using similar winding techniques, but the main difference lies in the filter media. Cotton wound cartridges use natural bleached cotton yarn, offering higher temperature resistance (up to 120°C) and are preferred for applications that require natural or food-safe materials. PP (polypropylene) string wound cartridges, on the other hand, are made from synthetic fibers with lower temperature resistance (typically up to 80°C) and are more chemically inert, making them suitable for aggressive chemical environments. The choice depends on application requirements such as purity, temperature, and compatibility.

Q2: Is bleached cotton safe for food and pharmaceutical filtration?
A: Yes. The bleached natural cotton used in our cartridges is processed to remove impurities, oils, and organic residues, making it safe and suitable for sensitive applications such as juice, wine, edible oils, and pharmaceutical liquids.

Q3: Can this filter cartridge be used with chemicals or oils?
A: Absolutely. Bleached cotton string wound filters offer good compatibility with oils, solvents, and mild chemicals, making them a reliable choice for industrial manufacturing, lubricants, and chemical process filtration.

Q4: What sizes and micron ratings are available?
A: We offer standard lengths from 5 to 40 inches, with outer diameters of 63mm (standard) or 114mm (jumbo). Micron ratings range from 0.5μm to 200μm. Various core materials (PP, galvanized iron, stainless steel) and end cap configurations (222, 226, flat) are also available.

Q5: How do I choose the right cotton string wound filter cartridge for my system?
A: Selection depends on factors like operating temperature, fluid type, desired micron rating, and housing compatibility. Our technical team is available to help you choose the best configuration for your specific application.

AAL Filter: Your Trusted Partner in Premium Industrial Filtration Solutions

Contact us For more product details or to request a sample, contact our technical sales team. AAL Filter is committed to delivering high-performance, reliable industrial filtration solutions globally.