Filopor string wound filter cartridges are a versatile and effective filtering system. These depth filter cartridges are created by winding specially selected high-quality yarns around a central core. The winding process creates many identical, tapered, spiral passageways. This design enables filtration to take place throughout the entire cartridge, not just on the surface, so large amounts of contaminant are trapped without the sudden rise in pressure that can be caused by surface blinding. Filopor string wound filter cartridges are the most versatile type of industrial filters available.
We offer a wide variety of wound filter cartridges including:
Cotton wound filter cartridges
These string cotton wound filter cartridges are manufactured from bleached cotton to FDA-approved standards and European Regulation Number 1935/2004 for food contact. They can even be used at temperatures up to 120°C when equipped with an SS304/316 core.
- Edible oil/vegetable oil
- Sugar solutions
- Electroplating cleaning baths
- Potable water
Viscose string wound filter cartridges
Viscose string wound cartridges are ideally suited for high-temperature, demanding applications up to 120°C and are especially good for use in organic solvent, organic acid and alkali applications.
- Organic solvents
- Organic acids
- Alcohols – hydrocarbons
- Petroleum oils
- Fatty acids
Nylon string wound filter cartridges
These nylon string wound filter cartridges are ideal for applications with demanding chemical compatibility and higher operating temperatures (up to 150 °C).
- Aggressive compounds
- Wastewater treatment
- Organic solvents
- Vegetable oils and biodiesel
- Mineral oil
Polypropylene (PP) string wound filter cartridges
Polypropylene string wound cartridges are compatible with most processes and are commonly used for general dirt removal. The graded density construction ensures high dirt-loading capacity at temperatures up to 65°C.
- Sand, silt and rust removal
- Manufacturing chemicals
- Metal finishing
- Surface coating
- Valve, pump or nozzle protection
- Pre-filtration for reverse osmosis systems
Baked glass fibre wound filter cartridges
Our baked glass fibre string wound filter cartridges have excellent chemical compatibility are ideal for demanding applications, with operating temperatures up to 400°C.
- Boiler condensate
- Oxidising acids
- Photography solutions
- Organic acids and solvents
- Concentrated alkalis
Polyester string wound filter cartridges
Polyester string wound cartridges have similar chemical resistance to polypropylene but can process liquids at higher temperatures (up to 120°C).
- Resin / paint
- Process water
- Electrolytic bath filtration
- Chemical products
- Edible oils/oils
Tailored filtration solutions and wound filter cartridges to meet your needs
With so many filtration options, it can be difficult to choose the wound filter cartridges and filter housings for your application.
Choosing the right solution depends on:
- Process temperature
- Type of liquid or gas medium
- Type and percentage of solids
- Operating and design pressures
- Desired particle removal size
- Size and micron ratings
- Viscosity of the fluid
- Available space
- Approvals process and regulatory requirements
- Other factors linked to your process/application
Our team of process experts recommend solutions to maximise the effectiveness of your filtration process, enabling you to hit production and quality targets with a low total cost of ownership