The primary duty of Sintered Porous Metal Filter Disc & Cup is protecting sensors, pneumatic valves, nozzles and analytical instruments with small sintered porous discs and cups that are pressed, crimped or welded into fittings. Below: the sectors that specify it in volume, the checklist used to select the right mesh and alloy for the application, handling notes, and the known limits of the type.
Typical Applications for Sintered Porous Metal Filter Disc & Cup
Where Sintered Porous Metal Filter Disc & Cup is specified and bought:
- Pneumatics: inlet filters and exhaust silencer elements on valves and cylinders.
- Pressure & flow instrumentation: snubber and sensor-port protection discs.
- Chromatography & laboratory: column frits, sparger discs and solvent inlet filters.
- Medical & analytical devices: gas inlet and vent filters in analyzers and ventilators.
How to Specify Sintered Porous Metal Filter Disc & Cup for Your Application
- Diameter & thickness: Match the fitting bore or seat; tolerance on diameter decides whether it press-fits or needs a weld ring.
- Micron rating: 2–60 µm; finer ratings cost flow, so specify the allowable pressure drop.
- Powder: SS316L for corrosion and heat; bronze CuSn10 for low-cost pneumatic duty in dry air.
- Standard: Quote ISO 4003 / 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
- Press discs in with a flat-faced tool so the porous face is not smeared shut at the edge.
- Clean ultrasonically in a suitable solvent and blow dry with clean air before reuse.
Common Selection Mistakes with Sintered Porous Metal Filter Disc & Cup
- Using bronze discs with ammonia, chlorine or wet corrosive gases, which attack copper alloys.
- Pressing the disc so tightly that the outer ring of pores collapses and flow drops.
Where Sintered Porous Metal Filter Disc & Cup Is Not the Right Choice
Not suited to high-flow or high-dirt-load duty, where a sintered tube or cartridge gives far more filter area.
