Sintered porous components for industrial filtration
PORAL® designs and manufactures high-performance porous sintered components for industrial filtration and a wide range of related applications. Available in stainless steel, bronze, and other alloys, and in various shapes such as tubes, discs, cartridges, and custom parts, PORAL solutions deliver reliability and versatility across demanding industrial environments.
Versatile porous components
for industrial filtration.
PORAL offers a wide range of porous sintered components manufactured from stainless steel and bronze. Available in various shapes both standard and custom parts, our components are designed to meet the needs of multiple industrial applications. Whether for filtration, flow control, gas diffusion, or noise reduction, PORAL products deliver consistent performance and long-term durability across demanding environments.
Products
Stainless Steel
components.
PORAL designs and manufactures a wide range of stainless steel filters (316L & 304L) with many shapes.
Products
Bronze
Components.
PORAL designs and manufactures a wide range of sintered elements in bronze with many shapes.
Process of Sintering
Typical microstructure of
sintered metal filters.
PORAL metal filters are produced using powder metallurgy. This process consists of two main steps: shaping powdered materials and sintering. Shaping can be carried out in different ways depending on the alloy in question: cold isostatic or uniaxial pressing, gravity filling. Sintering is a heat treatment consisting of heating the part to a temperature below the melting point of the base metal in a controlled atmosphere. The heat treatment allows the atoms to diffuse in the solid state, creating sintering bridges between the powder particles, thus ensuring the cohesion of the part.
Schematic representation of sintering mechanisms
Microstructure of Bronze PORAL® filters after sintering.
Gr. 15- x 250
Microstructure of Stainless steel & Ni alloys PORAL® filters after sintering.
Gr. 15- x 100
PORAL Filters
Advantages.
High temperature resistance
High temperature resistance, stability over a wide temperature range from cryogenic to high temperature (from 150°C to 900°C).
Filtration efficiency
High filtration efficiency, from 0.2 to 270 µm depending on material and grade.
Corrosion resistance
High corrosion resistance, chemical stability.
Mechanical resistance
High mechanical strength, high differential pressure capacity, vibration and abrasion resistance.
Easy to clean
Easy cleaning for significant operating cost savings by reverse flushing with clean fluid, suitable solvents, chemical reagents, ultrasonic washing or calcination (long service life).
Easy to implement
Easy to implement in any installation design (machinable and weldable, complex shapes).
Homogeneity
Regular behavior, homogeneous distribution of porosity.
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