Products Description
String water filters provide robust depth-filtration by winding high-purity yarn around a central core to remove suspended solids, sediment, and rust particles from potable and process water.
Product details
![]() |
![]() |
![]() |
![]() |
Technical parameters
| Parameter | Specification |
| Micron Ratings | 0.5 - 150 Microns (Custom ratings available) |
| String Materials | Pure PP, Polyester or Cotton (Customizable) |
| Operating Temp | Max 60°C (140°F) for PP |
| Standard Lengths | 10", 20", 30", 40" (Custom lengths on request) |
| Outer Diameter | 2.5″ or 4.5″ |
| Compliance | ISO 9001, FDA |
features
✅ Gradient-Density Winding
Traps large particulates on outer layers and finer debris toward the core, maximizing dirt-holding capacity.
✅ Broad Chemical Compatibility
Available in polypropylene or polyester yarn to withstand chlorinated, acidic, or alkaline water streams up to 60 °C.
✅ High Flow, Low Pressure Drop
Precision-controlled tension and uniform pore structure ensure optimal flow rates with minimal ΔP.
✅ Standardized Sizes
Offered in 10″, 20″, and 30″ lengths with 2.5″ or 4.5″ diameters for seamless drop-in replacements.
Applications
- Industrial Water Treatment: Pre-filtration to protect RO membranes, reducing fouling rates by up to 35%.
- Food & Beverage: Clarification of syrups and juices, achieving > 99% turbidity removal.
- Chemical Manufacturing: Filtration of aggressive solvents in recirculation loops with sustained performance.
- Electronics Rinse Baths: Particle removal to prevent defects in PCB cleaning processes.
🔹 Case Study: A German dairy plant replaced melt-blown filter cartridges with our 20-inch string water filters, extending run times from 3 to 8 weeks and cutting annual filter costs by 45%.
production workshop
![]() |
![]() |
![]() |
![]() |
Selection guide

fAQ
Q: What micron ratings are available?
A: We offer 0.5 µm through 150 µm in standard increments to suit everything from fine polishing to bulk sediment removal.
Q: Which material is best for my application, polypropylene or polyester?
A: Polypropylene is ideal for general potable water and moderate chemical exposure; polyester offers superior abrasion resistance and thermal stability.
Q: Do you supply custom lengths or end-cap styles?
A: Yes-bespoke lengths, diameters, and end-cap configurations can be produced to customer specifications.
Hot Tags: string water filters, China string water filters manufacturers, suppliers, factory, high flow filter cartridge, melt blown filter cartridge, pleated high flow filter element, spun bonded filter cartridge, spun filter cartridge, string wound filter cartridge











