Product description
Porous metal discs for precision filtration and flow control
Porous metal discs are flat, sintered metal filter elements engineered for controlled gas and liquid flow in demanding industrial, analytical and OEM applications. Manufactured through powder metallurgy processes, these discs provide a uniform network of interconnected pores for consistent and repeatable filtration performance.
Porous metal discs can be produced from a wide range of corrosion-resistant and high-performance alloys including 316L stainless steel, 904L stainless steel, Nickel 200, Monel 400, Inconel 600, Hastelloy C-276, Hastelloy C-22 and Hastelloy X. This material flexibility allows optimisation for aggressive chemicals, high temperatures and high-pressure environments.
Filtration principle
Porous metal discs operate using depth filtration through a rigid, interconnected pore structure. Process media flows through the disc thickness while particles larger than the pore size are retained within the structure.
This filtration design provides:
uniform particle retention across the full disc surface
stable permeability and controlled flow resistance
low pressure drop at defined micron ratings
mechanical integrity under differential pressure
repeatable performance over long service life
Material options
Porous metal discs are available in the following materials to meet chemical compatibility and performance requirements:
316L Stainless Steel – general industrial filtration
904L Stainless Steel – enhanced resistance to chlorides
Nickel 200 – suitable for caustic and hydrogen applications
Monel 400 – excellent in marine and salt-rich environments
Inconel 600 – high temperature oxidation resistance
Hastelloy C-276 – superior resistance to aggressive chemicals
Hastelloy C-22 – outstanding pitting and crevice corrosion resistance
Hastelloy X – strong high-temperature structural alloy
Material selection depends on operating temperature, pressure, and process fluid chemistry.
Available micron ratings
Porous metal discs are available in a wide range of pore sizes to suit filtration and flow control requirements.
0.5 micron
2 micron
5 micron
10 micron
20 micron
40 micron
100 micron
Typical applications
Gas and liquid filtration systems
Flow restrictors and pressure control devices
Diffusion and dispersion elements
Sensor protection
Hydrogen and specialty gas systems
Chemical processing equipment
OEM engineered assemblies
Features and benefits
Rigid, all-metal construction
Uniform pore structure for consistent performance
Wide alloy availability
High pressure and temperature resistance
Customisable diameters and thicknesses
Long operational lifetime
Configuration and quotation
Porous metal discs are supplied according to application-specific requirements. Selection parameters include:
material selection
micron rating
outer diameter (OD)
inner diameter (ID, if applicable)
disc thickness
operating pressure and temperature
process media compatibility
Technical support is available to ensure correct specification and optimal performance.