Sintered Fiber Felt (ISO 4022) is specified where the duty calls for deep, high-capacity filtration with stainless steel fiber felt — fine metal fibers laid randomly and sintered into a highly porous, pleatable mat. The sections below cover the typical end-uses by industry, the mesh, micron and material decisions for each, installation practice, and the applications this product type is not suited to.
Typical Applications for Sintered Fiber Felt
Where Sintered Fiber Felt is specified and bought:
- Polymer & film: pleated melt filter candles and leaf discs.
- Hydraulic & fuel: high-dirt-capacity filter elements.
- Hot gas: dust and diesel exhaust filtration.
- Burners & electrolysis: surface burners and gas diffusion layers.
How to Specify Sintered Fiber Felt for Your Application
- Rating: Approximately 3–60 µm.
- Porosity: Up to about 80 % for high dirt-holding capacity.
- Support: Laminated with mesh for pleating and handling.
- Standard: Quote ISO 4022 and the size designation from the table on the product page, plus any value you changed in the technical drawing.
Handling & Installation Practice
- Pleat with a support mesh to prevent fiber damage.
- Clean by solvent soaking or burn-off.
Common Selection Mistakes with Sintered Fiber Felt
- Pleating unsupported felt, which cracks.
- Over-aggressive cleaning that frays fibers.
Where Sintered Fiber Felt Is Not the Right Choice
Not for applications needing a rigid self-supporting plate.
