Sintered Fiber Felt is used primarily for high-temperature, high-pressure depth filtration that must be cleanable and reusable. This page lists the industries and assemblies where it is specified, the selection criteria that matter for each application, handling and installation practice, and the cases where a different mesh, screen or filter type is the correct choice. It is supplied to ISO 4022.
Typical Applications for Sintered Fiber Felt
The most common settings where this is specified:
- Pharma & fine chemical: sterile venting and back-flushable filters.
- Industrial filtration & separation: removing particulates from liquids, gases and slurries in process plant.
- OEM & fabrication: cut, formed and welded into filter assemblies, screens, guards and enclosures.
- Maintenance & replacement (MRO): matching an existing mesh, screen or element spec when servicing installed equipment.
- Fluidising & aeration: gas distribution plates and spargers.
How to Specify Sintered Fiber Felt for Your Application
- Mesh count / micron rating: Match the aperture or micron rating to the smallest particle you must retain or pass. The table below lists mesh count, aperture and micron for each option — for woven cloth, specify the aperture or micron, not just the mesh count.
- Micron & permeability: Specify the micron rating and required permeability/pressure drop together — not micron alone.
- Material / alloy: Select the alloy for the environment — 304 for general use, 316L for chlorides, food and chemicals, brass or copper for shielding, and Monel, Inconel or Hastelloy for marine, acid and high-temperature service.
- Environment: For damp, coastal, chemical or high-temperature service move up to 316L or a nickel alloy; for dry indoor duty 304 or a coated steel is usually enough.
- Standard: This product is supplied to ISO 4022. Quoting the standard on your order guarantees interchangeable dimensions and filtration data between suppliers.
Handling & Installation Practice
- Mount rigidly and avoid mechanical or thermal shock — sintered laminate is strong but not ductile.
- Clean by backwash, ultrasonic or controlled burn-off; it recovers its rating far better than a disposable depth filter.
Common Selection Mistakes with Sintered Fiber Felt
- Selecting sintered media purely on micron and overlooking permeability, so the pressure drop is unacceptable at the required flow.
- Subjecting sintered laminate to bending or impact loads it was never intended to carry.
Where Sintered Fiber Felt Is Not the Right Choice
Not where a cheap disposable filter would do, and not for large-area, low-pressure duties where woven cloth is far more economical.
