Wire mesh’s high surface area, predeterminable geometry, and excellent permeability make it ideal for electrode materials. In alkaline electrolysis, nickel meshes (e.g. Mat. No. 2.4060 / 2.4066) are particularly suitable, offering conductivity and resistance to the basic environment (usually potassium hydroxide). Multi-layer mesh configurations can further enhance surface area and porosity. Specific thermal treatments enable the production of these multi-layer meshes.

In PEM electrolysers, wire mesh serves as the porous transport layer (PTL). It delivers ultra-pure water to the Catalyst Coated Membrane (CCM), ensures uniform gas distribution, and facilitates the efficient removal of oxygen gas at the anode.

Employing specialized materials like titanium provides the high corrosion resistance necessary for demanding system environments. Advanced 3D meshes, similar to the MINIMESH® RPD HIFLO-S, allow for precise control over porosity and flow characteristics.

Meshes for mechanical filtration physically remove particles from the hydrogen stream, protecting sensitive components from wear and contamination. Specially developed wire mesh laminates enable this even under high-pressure conditions. By tailoring the layer configurations, flow rate, pressure loss and mechanical stability can be precisely adjusted to the specific application. This is particularly important to prevent blockages in valves and pipelines.

Wire mesh not only serves as a support structure for catalyst materials (e.g., Raney nickel, platinum, nickel-palladium) but can also be catalytically coated itself. This enables process-efficient solutions for the further treatment of hydrogen. Chemically stable special alloys like Inconel 600, Hastelloy C22, titanium, or nickel alloys ensure process stability, and individual forms such as pleated meshes, deep-drawn parts or precise cut-outs allow seamless integration.

For large-scale applications with high demands on reproducibility and assembly efficiency, plastic-overmoulded filter elements offer a compelling solution. They can be manufactured to exact specifications and tailored to specific processes. Material selection—such as PP, PEEK, or PA—is based on application requirements. Optionally, an elastomer like EPDM can be overmoulded to provide a sealing function, eliminating the need for additional O-rings or sealing elements, thereby reducing assembly time and component costs.