String Wound Filter Cartridge 5 Micron 40 Inch: Ultra-Fine Wound Depth Filter For Precision Industrial Liquid Treatment
Introduction:If you are searching for reliable String Wound Filter Cartridge 5 Micron 40 Inch for high-precision industrial pre-filtration, fine chemical liquid purification and process water micro-particle removal, this polypropylene yarn wound filter delivers stable 5 micron filtration accuracy with excellent structural strength. Built with multi-layer gradient winding technology, it effectively captures fine silt, tiny rust particles, colloidal contaminants and micro suspended solids that coarse filters cannot intercept. Thanks to its washable and reusable design, it offers an economical mid-stage filtration solution to protect RO, UF and ion exchange systems from fine particle fouling. It is widely adopted in electronics ultra-pure water, beverage manufacturing, fine chemical processing, electroplating and power plant high-standard water treatment projects around the globe.
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Product Overview
String Wound Filter Cartridge 5 Micron 40 Inch is a high-precision reusable depth filter for demanding industrial liquid filtration. It is manufactured by winding continuous high-purity polypropylene yarn layer by layer onto a reinforced rigid polypropylene inner core. By adjusting winding tension, the cartridge forms a gradient loose-outside and dense-inside structure to achieve three-dimensional depth filtration, instead of simple surface blocking. Standard dimensions are 40 inch length, 60mm outer diameter and 30mm inner diameter, fully compatible with all standard 40-inch filter housings for simple replacement. Compared with 10μm and 20μm string wound elements, this 5μm grade targets finer particulate removal. The robust PP support core prevents collapse under pressure, and the PP yarn features good resistance to weak acid and weak alkali, making it suitable for many precision process liquid applications.
Working Principle
String Wound Filter Cartridge 5 Micron 40 Inch operates based on outside-in gradient depth filtration. When liquid flows through the multi-layer wound yarn structure, large impurities such as sand and rust flakes are trapped in the outer loose yarn layers. Medium suspended particles are captured within the middle winding layers. Fine particles larger than 5 micron are deeply intercepted by the compact inner yarn layers. This layered interception distributes contaminants evenly throughout the whole filter body, improving dirt holding capacity and slowing pressure rise. The rigid inner core provides strong mechanical support to maintain shape integrity under continuous flow and pressure fluctuation, securing consistent fine filtration performance for long-term running.
Core Technical Specifications
| Item | Parameter |
|---|---|
| Model | String Wound 5μm 40" |
| Material | PP Yarn + Reinforced PP Support Core |
| Filtration Rating | 5 Micron Ultra-Fine Grade |
| Length | 40 inch (1016 mm) |
| Outer Diameter | 60 mm |
| Inner Diameter | 30 mm |
| Flow Direction | Outside to Inside |
| Max Continuous Temperature | ≤60℃ |
| Max Differential Pressure | 2.0 bar |
| Structure | Gradient Multi-Layer Winding, Rigid PP Core |
| Feature | 5μm stable precision, washable & reusable, high mechanical strength |
Core Advantages
Reliable 5μm ultra-fine filtration:
Captures micro suspended solids and tiny colloidal impurities, improves inlet water quality for downstream precision membrane systems.
Washable reusable construction:
Can be cleaned and reused several times under low contamination conditions, lowering long-term filter procurement cost.
Pressure-resistant rigid inner core:
Prevents deformation or collapse under system pressure, stable performance for 24-hour continuous operation.
Good chemical inertness:
Polypropylene material tolerates weak acid, weak alkali and most neutral aqueous liquids without chemical reaction.
Standard universal size:
Fits all mainstream 40-inch filter housings, quick installation and on-site maintenance.
Main Application Scenarios
Ultra-pure water pretreatment for electronics and semiconductor factories
Food, beverage and bottled water production process filtration
Fine chemical liquid and electroplating solution precision clarification
Boiler feed water and high-standard circulating water purification in power plants
Advanced pretreatment for RO, UF and ion exchange resin systems
Fine impurity removal in pharmaceutical auxiliary process water
Compatibility & Cross Reference
| Model | Specification | Application Scenario |
|---|---|---|
| String Wound 5μm 40" | 40 inch,5μm ultra-fine wound filter | High precision process liquid filtration |
| String Wound 10μm 40" | 40 inch,10μm standard grade | Conventional industrial fine pre-filtration |
| String Wound 20μm 40" | 40 inch,20μm coarse grade | High turbidity raw water pretreatment |
| String Wound 5μm 20" | 20 inch short-type filter | Small precision water treatment equipment |
FAQ
Q1: What is the difference between 5μm and 10μm string wound filter cartridge?
A1: The 5μm version achieves finer particle interception. It is selected when stricter inlet water quality is required for ultra-pure water and fine chemical processes. Its dirt holding capacity is slightly lower than 10μm grade.
Q2: Can the 5μm string wound filter be cleaned repeatedly?
A2: Yes, under low-contamination working conditions, it can be rinsed and reused. If colloidal or oily pollutants block the yarn gap permanently, replacement will be required.
Q3: What liquid types are not suitable for this filter?
A3: It is not recommended for strong acid, strong alkali or heavy oily liquid, which will damage polypropylene yarn and cause permanent blockage.
Q4: Can we get custom micron ratings or lengths?
A4: Yes, 10/20/30/40 inch lengths and full micron grades are available for bulk project orders.
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