SW‑40 String Wound & PF‑40 Pleated Filter Cartridge Multi‑Function Water Filter Element

Industrial liquid filtration has diverse working‑condition requirements. SW‑40 string wound filter cartridge and PF‑40 pleated filter cartridge are two classic industrial water filter cartridge. The wound yarn filter (string wound) adopts continuous winding yarn structure, fits high‑viscosity liquid and liquid with large‑quantity gel impurities. The pleated water filter uses folded flat filter media, owns bigger filter area for general water pre‑filtration. Users can choose suitable cartridge between string‑wound and pleated according to actual liquid property.

Filtration Principle For String‑Wound And Pleated Filter

For SW‑40 string wound filter cartridge: liquid flows radially through multi‑layer wound yarn of wound yarn filter. Gradient gap among winding yarn layers intercepts particles and gel‑like dirt, good performance for high‑viscosity liquid medium. For PF‑40 pleated filter cartridge: liquid flows outer‑to‑inner through folded flat filter media of pleated water filter. Large pleat surface improves flow rate and dirt‑holding capacity for general water‑treatment, belongs to typical surface‑depth combined industrial water filter cartridge.

Core Technical Parameters

• SW‑String‑Wound Media: PP yarn / cotton yarn for string wound filter cartridge

• PF‑Pleated Media: Polypropylene pleated sheet for pleated filter cartridge

• Available Precision:1 /5 /10 /20 /50 /100 μm for wound yarn filter & pleated water filter

• Standard Length:10 /20 /30 /40 inch for industrial water filter cartridge

• Max Temp:PP yarn 60℃; cotton yarn 80℃

Both string wound filter cartridge and pleated filter cartridge fit standard filter housing, multiple material options for different medium requirements.

Product Main Features

1 String‑Wound Cartridge: For Gel & High‑Viscosity Liquid
Multi‑layer yarn winding structure of string wound filter cartridge adapts viscous liquid condition.

2 Pleated Cartridge: Large Filter Area
High flow performance for general‑purpose pleated filter cartridge water‑pre‑treatment.

3 Multiple Raw‑Material Options
PP / cotton yarn for wound yarn filter; PP pleated sheet for pleated water filter.

4 Complete Size Series
10‑40‑inch full‑size series for industrial water filter cartridge.

Application Scenarios

SW‑40 string wound filter cartridge applies for high‑viscosity chemical liquid, oil‑water mixed liquid filtration. PF‑40 pleated filter cartridge is widely used for RO pre‑filtration, food‑drink water pre‑treatment, general industrial circulating water filtration.

Full Model List

Full Model No.	Specification Introduction
SW‑10	10‑inch string wound filter cartridge, small‑viscous‑liquid equipment
SW‑20	20‑inch wound yarn filter, medium‑size chemical‑liquid filter
SW‑30	30‑inch string wound filter cartridge, medium‑large flow viscous‑liquid
SW‑40	40‑inch standard wound yarn filter, large‑capacity high‑viscosity‑liquid
PF‑10	10‑inch pleated filter cartridge, small water‑making equipment
PF‑20	20‑inch pleated water filter, small‑industrial pre‑filtration
PF‑30	30‑inch industrial water filter cartridge, medium‑flow RO pre‑filter
PF‑40	40‑inch pleated filter cartridge, large‑water‑plant pre‑filtration

Other Related Products

PP‑Melt‑Blown Melt Blown Filter Cartridge

FAQ

Q1 When should I choose string‑wound instead of pleated filter cartridge?
A1 Choose string‑wound string wound filter cartridge if your liquid contains gel substance or high‑viscosity medium.

Q2 What material difference between PP‑yarn and cotton‑yarn wound yarn filter?
A2 PP yarn resist chemical corrosion; cotton yarn can bear higher temperature but not fit strong‑chemical medium.

Q3 Can pleated filter cartridge replace melt‑blown filter for RO pre‑filtration?
A3 Yes, PF‑series pleated filter cartridge can be used as RO pre‑filter, get higher flow rate.

Q4 What end‑cap options are available for pleated water filter?
A4 DOE double‑open end‑cap and SOE single‑open‑end‑cap with gasket for industrial water filter cartridge.

Q5 Can string‑wound cartridge be cleaned and reused?
A5 Not recommended for repeated use after heavy gel‑pollution, belongs to disposable consumable normally.