Filtration

SIPERM® materials are used in filtration processes where defined pore structures and stable operating conditions are required. The materials made of stainless steel, bronze or polyethylene are manufactured as dimensionally stable sintered bodies and enable a uniform flow without local compaction or jet points. This results in reproducible separation performance that remains constant over long periods of use. The pores act as a fixed, geometrically defined barrier so that particles are reliably retained in the filter while the media flow continues in a controlled manner.

The appropriate choice of material depends on the temperature range, medium and cleaning requirements. Stainless steel is used for high temperatures or chemically demanding media, bronze is characterized by low pressure losses and homogeneous flow conditions, while polyethylene is preferred when complex geometries or media-resistant solutions are required. Typical applications range from gas and liquid filtration to protective functions in measuring and analysis systems and filtration tasks in hydraulic or pneumatic processes.

All materials retain their functionality even after repeated cleaning cycles, as the pore structure remains unchanged. This makes SIPERM® filter elements suitable for applications that require long-term stable flow and pressure conditions.

Bulk material handling

SIPERM® materials are used in bulk solids handling to specifically stabilize the flow behaviour of fine or cohesive powders. The porous elements serve as evenly flowing surfaces through which gas is introduced into the bulk bed in a controlled manner. This reduces internal frictional forces and typical faults such as bridging, material compaction or irregular discharge occur much less frequently. The uniform gas distribution is maintained even with different fill levels and varying material properties, as the pore structure remains unchanged and stable under load.

SIPERM® elements are installed as aeration floors, wall segments or modular surfaces in silos, hoppers and conveyor systems. They are suitable for both continuous and intermittent discharge processes and support a reproducible material flow regardless of external process fluctuations. The materials withstand mechanical loads, vibrations and cleaning processes without changing the flow properties.

Typical applications can be found in systems for processing plastic powders, mineral materials, pigments, food powders or fine industrial bulk materials. SIPERM® supports safe, controlled discharge and helps to minimize downtimes and unsteady process conditions.

Ventilation / aeration and degassing

SIPERM® materials are used in applications where gases have to be evenly introduced into solids, powders or process areas or discharged in a controlled manner. The porous structure enables a defined, large-area distribution without a punctual jet effect. This creates stable pressure and flow conditions, which are crucial for many processes. When introducing gases, the material is used for homogeneous distribution; when degassing, it serves as a barrier-free discharge surface through which trapped air or process gases can reliably escape without dissolving particles or impairing the medium.

The function is maintained regardless of external influences, as the pore structure is mechanically stable and permanently permeable. SIPERM® elements can be integrated into existing containers, conveyor systems or reaction chambers and support uniform process conditions even with changing loads. Typical applications include inerting processes, gas exchange in powder beds, the stabilization of reaction or temperature-dependent processes and applications in which a defined gas supply or controlled venting is required.

Silencer noise reduction

SIPERM® materials are used in pneumatic and gas-conducting systems to reduce noise caused by the discharge of compressed air or process gases. The porous structure of the sintered bodies ensures uniform flow stabilization, as the gas flow is slowed down and distributed as it passes through the fine channels. This leads to a significant reduction in sound pressure peaks and stabilizes the acoustic behaviour of the system. The damping effect results exclusively from the material structure and remains independent of external installation conditions or the geometry of the component.

SIPERM® elements can be made of stainless steel, bronze or polyethylene. The choice depends on the temperature, medium and mechanical stress. Stainless steel is used when high thermal resistance is required; bronze enables low pressure losses; polyethylene is suitable for lightweight or complex-shaped components. The elements work without moving components and are therefore particularly low-maintenance.

Typical areas of application are in valve technology, pneumatics, measuring systems, exhaust air lines and systems in which defined noise reduction is required.

Safety

SIPERM® R is used in safety applications when gases need to be reliably guided or re-ignition prevented. The porous stainless steel structure acts as a solid barrier over which hot or reacting gases are distributed and their temperature reduced. This supports the function as a flashback arrestor within systems in which explosive or flammable gas mixtures can occur. The effect results from the stable material matrix, whose properties do not change even under repeated thermal and mechanical loads.

SIPERM® elements can be integrated into housings, pipes, valve components or measuring systems and enable compact designs, as no additional moving safety parts are required. The components are pressure-resistant, temperature-resistant and insensitive to process fluctuations, ensuring reliable long-term operating conditions. Typical areas of use include sensor applications, gas-conducting systems in industrial plants and areas where defined protective functions are required to prevent unwanted reactions or backflow.

Capillary transport / Storage

SIPERM® materials are used for applications in which liquids need to be transported, distributed or temporarily stored in a controlled manner. The pore structures act as fixed, capillary-active channels through which liquids are evenly absorbed and transported. Transport takes place without moving components and remains stable regardless of external pressure or temperature changes, as the capillary effect arises directly from the porous material structure. This means that constant moisture supply, defined wetting surfaces or uniform storage processes can be reliably achieved.

Depending on the application, the materials can be designed with different pore sizes and geometries so that the transport speed and retention capacity can be adapted to the requirements of the system. Typical areas of use are in analysis and dosing technology, in devices for defined liquid distribution and in technical applications where reproducible liquid intake or release is required. Thanks to the dimensionally stable sintered structure, the function is maintained even under continuous operation or changing loads. SIPERM® thus enables capillary processes that do not require additional components or complex mechanisms.