Application guide for Sintered Metal Powder Filters to ISO 4022. The core duty of the type is high-temperature, high-pressure depth filtration that must be cleanable and reusable. The typical industries, the how-to-specify checklist, handling practice and the exclusion cases are set out below.
Typical Applications for Sintered Metal Powder Filters
The most common settings where this is specified:
- Pharma & fine chemical: sterile venting and back-flushable filters.
- Gas sparging: sintered powder discs and cups for aeration.
- Fine filtration: sub-micron cleanable elements.
- 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.
How to Specify Sintered Metal Powder Filters 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 Metal Powder Filters
- 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 Metal Powder Filters 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.
