Polyester (PE) Filter Media - Farrleey Filtration

PRODUCTS

PET Depth Filter Media for Industrial Liquid Filtration

FARRLEEY Filtration supplies polyester (PET) needle-punched filter felt for industrial liquid filtration, offering a practical balance of mechanical strength, dimensional stability, dirt-holding capacity and convertibility. Different media grades, nominal filtration ratings and surface finishes are available for filter bag manufacturing, filter press applications and other industrial liquid filtration processes.
1–200 μm Nominal Ratings · Surface-Finished Options · Rolls & Converted Media

Basis Weight

120–260 g/m²

Thickness

0.35–0.70 mm

Air Permeability

180–450 L/m²/s

Continuous Temperature

≤ 130°C

Max Roll Width

2,200 mm

Finishes

5 options

Overview

Polyester (PE) Filter Media is designed for liquid filtration applications requiring good mechanical strength, dimensional stability, and reliable particle retention. It can be supplied in different filtration ratings and configurations for industrial process and liquid filtration systems.

Key Features

Depth Filtration Structure
The three-dimensional needle-punched fiber structure captures particles through the depth of the media, providing good dirt-holding capacity for industrial liquid filtration.

Good Mechanical Strength
Polyester construction provides good strength, abrasion resistance and dimensional stability for liquid filter manufacturing and filtration applications.

Multiple Filtration Ratings
Different media grades are available according to the required nominal filtration rating, liquid characteristics and filtration conditions.

Surface-Finished Options
Singeing, calendering, heat-setting and other surface treatments can be evaluated according to surface, converting and filtration requirements.

Typical Specifications

Parameter	Typical Specification
Base Material	Polyester (PET)
Media Construction	Needle-Punched Felt
Filtration Type	Depth Filtration
Nominal Filtration Rating	1–200 μm*
Basis Weight	300–650 g/m²*
Thickness	1.5–3.5 mm*
Surface Finish	Singed / Calendered / Heat-Set / Customized
Supply Form	Rolls / Cut Media / Converted Components
Customization	Weight / Thickness / Rating / Dimensions / Surface Treatment

Typical ranges only. Actual specifications depend on media grade, filtration requirements and test method. If a specific filtration efficiency, absolute rating, liquid compatibility or operating-temperature requirement is needed, please provide the application conditions for evaluation.

Download Datasheet

Applications

Metalworking Fluids

Cutting fluids, grinding fluids, cleaning liquids and other selected industrial process fluids.

Oil & Process Liquids

Selected oils and process liquids where polyester is compatible with the operating conditions.

Industrial Water & Wastewater

Pre-filtration and solids removal in suitable industrial water and wastewater processes.

Filter Bag & Filter Press Applications

Roll media and converted materials for liquid filter manufacturers, filter press applications and filtration equipment suppliers.

Available Media Technologies

Standard PET Needle Felt
For general industrial liquid filtration requiring depth filtration, good mechanical properties and reliable converting performance.
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Singed Surface
Surface singeing helps remove loose surface fibers and creates a smoother media surface for selected liquid filtration applications.
Discuss Your Application
Calendered & Heat-Set Media
Available where modified surface characteristics and improved dimensional stability are required.
Discuss Your Application
Special Surface-Treated Media
Customized surface treatments can be evaluated for applications requiring additional surface properties or reduced fiber release.
Explore Specialty Filter Media

From Media to Finished Bags

FARRLEEY Filtration combines filter media development with practical filter bag manufacturing experience, helping us evaluate PET needle-punched felt not only by material specifications, but also by converting requirements, bag construction and actual liquid filtration conditions. This practical experience helps us better support filter bag manufacturers in media selection, converting and customized material development.
Explore Liquid Filter Bags
Need help choosing PET or PP?
The appropriate material depends on liquid chemistry, temperature, exposure time and mechanical requirements. PET generally offers good strength and dimensional stability, while PP is often evaluated for applications requiring broader acid and alkali resistance.
Compare PP & PET Filter Media

Food-Processing Projects
For food-processing or food-contact projects, please provide the liquid or food type, contact temperature, contact time and required compliance standard. Our team can evaluate the appropriate media construction and available supporting documentation.
Discuss a Food-Processing Application

Available Supply Forms

Filter Media Rolls

For filter bag manufacturers and filtration companies with their own cutting, sewing, welding or converting capabilities.

Cut & Converted Media

Customized dimensions and selected converted formats can be supplied according to downstream production requirements. Customized roll width, roll length, basis weight, thickness, nominal filtration rating and surface finish are available upon request.Get a Quote

Frequently Asked Questions

What is polyester needle-punched felt used for in liquid filtration?

PET needle-punched felt is used as a depth filtration media for industrial liquids. Typical uses include liquid filter bags, filter press applications, metalworking fluids, process liquids and selected industrial water filtration processes.

What nominal micron ratings are available?

FARRLEEY Filtration offers different PET felt constructions with nominal filtration ratings typically covering 1–200 μm. Available ratings depend on media construction and test method.

Is the micron rating nominal or absolute?

The standard ratings for needle-punched filter felt are generally treated as nominal filtration ratings unless a specific test method or filtration efficiency is defined. If your application requires an absolute rating or specified efficiency, please provide the requirement for evaluation.

What is the difference between PET and PP filter felt?

PET generally offers good mechanical strength and dimensional stability, while PP is often selected for applications requiring broader acid and alkali resistance. Final selection should consider liquid chemistry, temperature, exposure time and filtration requirements.

Can PET filter media be evaluated for food-processing applications?

Yes. Please provide the food or liquid type, contact temperature, contact time and required compliance standard. We can then evaluate the appropriate media and available supporting documentation for the project.

Can PET needle felt be supplied with singed or calendered surfaces?

Yes. Singed, calendered, heat-set and other surface-finished options can be evaluated according to filtration, surface and converting requirements.

Can you supply PET filter felt in rolls for filter bag manufacturing?

Yes. FARRLEEY Filtration can supply PET needle-punched felt in rolls and customized dimensions for liquid filter bag manufacturers and other filtration-product producers.

Find the Right PET Filter Felt

Looking for a new liquid filtration material or comparing your current polyester filter felt? Send us your filtration rating, liquid characteristics, current specification, datasheet or sample information. FARRLEEY Filtration can help evaluate the appropriate media grade, basis weight, thickness, nominal filtration rating and surface finish for your application.