PORAL ® Metallic Porous Filters
PORAL ® is a well-known brand name for high performance porous sintered media filters,
in stainless steel, nickel alloys or Bronze.
They allow use over a wide range of temperature and corrosive environments.
PORAL ® sintered filter provides solutions for multiple markets and application fields worldwide:
Chemical & Petrochemical: Corrosive liquids or gases, cryogenic fluids,
Medical, Pharmaceutic & cosmetic: Respiratory devices, separation…
Aeronautic, Space & Military: Oil or kerozene filtration,...
Food & Beverage: Aeration, hydrogenation, oxygen stripping…
Mechanical & Construction: Hydraulic filtration, silencers, plastic mould gas evacuation, fluidized beds…
Nuclear: Calciner exhaust gaz filtration…
Welding Device, Metrology & Instrumentation, Valves: Flame arresters, sensors protection, high pressure valves protection…
Water treatment: Ozone diffusion, purification…
Design & luxury appearance parts
The main advantages of PORAL ®
sintered metal filters are:
Our PORAL ® filter range
Nevertheless, no matter if you need standard shapes and fittings or customized filter solutions, our team will be your partner to develop customized filter solutions which meet your requirements.
high quality standards
To ensure the best quality to our customers, PORAL ® sintered porous filters are controlled according to standardized tests:
First bubble pressure measurement as
ISO 4003:1977 / NF EN 24003:19993
Pressure drop measurement as
Flexion, traction and
PORAL ® porous products may be used for filtration of gas or liquid,
separation, flow equalization, flow restriction, bubbling, aspiration, flame arrestor, coalesce, fluidized bed and noise reduction & protection.
When the particle size is smaller than the pore size, the particles penetrate through the porosity of the filter media. Particles encounter many obstacles, and are retained in the thickness of the filter.
When pore size is smaller than particles to be filtered, they are retained on the surface of the filter. Back flush cleaning is readily performed.
PORAL ® sintered filter can allow user to have a constant outflow.
PORAL ® porous sintered products can benefit to have pressure drop in some applications.
To disperse a gaz into a liquid, to aerate the liquid for example.
To retain moisture contained in a gaz.
Solids particles are converted from a static state to a dynamic state. The advantage of the fluidized state is that the solids particles have similar flow properties to those of a liquid phase. The fluidized state begins when the gas velocity is sufficient to be able to carry solid particles.
PORAL ® porous sintered filter allow noise reduction by reducing the pressure. The efficiency will depend on filter features.
Instructions for use :
PORAL ® porous products are produced by Powder Metallurgy. This technology consists in shaping and sintering. The shaping may be performed by different ways depending on the considered material: cold isostatic or uniaxial compaction, gravity filling. Sintering is the main step for Powdered Metal products which is based on atomic diffusion that occurs at high temperature below the melting point under controlled atmosphere. The atoms in the powder diffuse across the boundaries of the particles, fusing the particles together.
PORAL ® filters are manufactured in accordance with the ISO 9001, IATF 16949 quality standards.
PORAL ® filters comply with the following European directives: