PTFE Needle Felt Filter Bag

100% PTFE needle felt filter bag / 750g

Our PTFE needle punched felt is made of 100% polytetrafluoroethylene fibers via 3D needle punching. With extreme temperature resistance (up to 260℃) and chemical inertness, it’s ideal for harsh flue gas filtration in steel, power, waste incineration industries.

Product Overview

Our PTFE (polytetrafluoroethylene) needle punched felt is a premium industrial filter material engineered by 3D needle punching technology using pure PTFE fibers, aligning with the technical standards of global leading brands like Donaldson and Camfil. The macromolecular linear structure of PTFE fibers endows the felt with exceptional intrinsic properties—outstanding temperature resistance (continuous operating at ≤260℃, short-term peak up to 280℃), excellent wear resistance, and unparalleled chemical stability. It remains stable against strong acids, strong alkalis, organic solvents, and oxidizing agents across the entire pH range, effectively withstanding corrosive flue gases such as HCl and SO₂. Widely trusted in harsh filtration environments including steelmaking, thermal power generation, waste incineration, and chemical processing, this filter felt delivers long-lasting, reliable performance that meets stringent international emission standards like EN14385.

Core Features

1. Extreme Temperature Tolerance: Maintains stable performance at -100℃ to 260℃ continuously, withstanding instantaneous peaks of 280℃, suitable for high-temperature flue gas filtration.

2. Superior Chemical Inertness: Resists erosion from strong acids, alkalis, solvents, and corrosive gases, ensuring no material degradation in harsh chemical environments.

3. Low Adhesion & Easy Cleaning: Ultra-low surface energy prevents dust adhesion; supports efficient pulse jet cleaning, reducing maintenance costs and extending service life (up to 4–6 years in optimal conditions).

4. High Mechanical Strength: 3D needle-punched structure forms a dense, uniform fiber network, ensuring excellent tensile strength, dust-holding capacity, and dimensional stability.

Technical Parameters