PP String Wound Cartridge Filter 0.5 to 100 Micron Wound Filter Element For Pharmaceutical Syrup And Beverage Liquid Filtration

Product Overview

Water Filter Element product range includes depth-type consumables for liquid pretreatment, and the PP string wound cartridge belongs to the core line under Water Filter Element. Textile fiber yarn is tightly wound on a porous skeleton; filtration accuracy is controlled by winding density and pore shape, following a loose-outside and tight-inside depth structure. PP grade serves acid-alkali liquid, organic solution and ordinary process water, with recommended maximum operating temperature 60 ℃. Accuracy options run from 0.5 μm up to 100 μm, making this wound cartridge a flexible choice for fine and medium pre-filtration.

Basic Technical Parameters

Filter material	Polypropylene (PP) textile yarn
Center rod	Polypropylene
Outer diameter	62 mm / 110 mm
Inner diameter	28 mm / 30 mm
Available length	9.75 in, 10 in, 20 in, 30 in, 40 in
Filtration accuracy	0.5, 1, 5, 10, 20, 30, 50, 75, 100 μm
Max operating temperature (PP grade)	60 ℃ or less
Connection	Thread, or 222 fin

Pharmaceutical And Beverage Scenario

In pharmaceutical syrup and chocolate production lines, the liquid carries suspended spice particles and undissolved sugar crystals that a mesh screen cannot hold. The wire wound filter element is installed in a security filter housing before filling, trapping particles inside the wound matrix rather than only on the surface. In printing and coating shops, the same cartridge filters developing liquid and ink where pigment agglomerates would otherwise block nozzles. For RO stations it acts as the last pre-filter ahead of the membrane, lowering SDI load. Because the wound structure retains particles through depth, service life is longer than a surface-type cartridge at the same nominal rating, and users can match High Flow Filter Cartridge for the large-flow side of the same system.

Product Advantages

The loose-outside tight-inside depth structure spreads dirt load through the yarn pack, which raises pollutant-carrying capacity and keeps pressure drop low. PP yarn gives broad chemical compatibility with acid, alkali and organic solution at the 60 ℃ limit, and the polypropylene center rod avoids corrosion in wet process rooms. Thread and 222-fin connections fit standard security housings without adapters. The rating selection from 0.5 to 100 μm lets one housing family serve both fine polish and coarse protection stages.

Manufacturer And Factory Strength

Xinxiang Lifeierte Filter Corp., Ltd (Stock Code 837936) has produced liquid filter consumables for more than 15 years; every wound cartridge passes dimensional and bubble-point inspection before dispatch. Custom yarn density and end connection are available against the housing drawing, and the factory also supplies the matching Interchangeable Hydraulic Filter Elements line for customers operating mixed fluid systems. For technical selection support, contact our engineering team.

FAQ

Q1: What is the difference between a wound cartridge and a melt-blown cartridge?
A1: Wound cartridges build accuracy by yarn winding density and tolerate higher differential pressure; melt-blown cartridges form a fibrous depth matrix by hot melting. Both are depth-type, but wound cartridges suit higher pressure chemical liquid.

Q2: Can the PP wound cartridge handle strong organic solvent?
A2: It works with ordinary organic solution and acid-alkali liquid within 60 ℃; for strong solvent, choose glass-fiber yarn grade and confirm compatibility at order.

Q3: How do I choose between thread and 222-fin end connection?
A3: Follow the housing head design. Thread suits small security housings; 222 fin is used on standard multi-element housings with fin seats.

Q4: Is this cartridge reusable after backwashing?
A4: It is a disposable depth cartridge. Limited rinse may extend interval but cannot restore original accuracy; replacement is recommended at differential pressure alarm.

Q5: Does it fit RO pretreatment in place of a pleated cartridge?
A5: It can serve as a coarse-to-medium pre-filter; final membrane protection usually pairs it with a finer downstream pleated or high-flow element.

Reference: ASTM D2134 standard practice for wound filter media evaluation