A key part of the design of our electrolyzers are the flexibility in gasket design. Discover leak-free sealing and controlled compression for your electrolyzer — precision-cut gaskets in PTFE, EPDM, and Viton.
Always remember to reach out to us if you are in doubt about what gaskets to select for your application.
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Gaskets, Gaskets for Electrolyzers
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Gaskets, Gaskets for Electrolyzers
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Gaskets, Gaskets for CDI, ...
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Gaskets, Gaskets for Electrolyzers
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Gaskets, Gaskets for Electrolyzers
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Gaskets, Gaskets for Electrolyzers
Price range: 20.00 € through 85.00 € Add to Quotation This product has multiple variants. The options may be chosen on the product page
Gaskets, Gaskets for Electrolyzers
Price range: 20.00 € through 85.00 € Add to Quotation This product has multiple variants. The options may be chosen on the product pageWhile often overlooked, gaskets are a critical component for the proper functioning and safety of any electrochemical cell. They prevent electrolyte leakage and gas crossover, define the cell’s active area, and hold the stack under the correct, uniform compression. The choice of gasket material and thickness is vital for optimal performance and long-term reliability of the electrolyzer.
Our modular design uses a combination of flow-field gaskets (which define the active area) and cover/spacer gaskets (which fine-tune total cavity thickness). This lets you precisely control electrode compression — typically 20–30% for carbon felts in electrolysis – for leak-free, reproducible assembly.
The standard gasket set for the X-Cell general electrolyzer, available for both current collector configurations. With flat current collectors (suited to thick electrodes >0.5–1.0 mm), both cover gaskets and flow-field gaskets are required. With flow-field current collectors (suited to thin electrodes <0.5–1.0 mm), cover gaskets alone are sufficient. Available in PTFE, Viton, and EPDM, from 0.05 mm to 2.0 mm, for 2.5×2.5 cm and 5.0×5.0 cm active areas.
Cover gaskets for the X-Cell configured with reference electrode ports and flow-field current collectors. Three gasket types are required per assembly: Cover Gasket Type 1, a Central Gasket, and Cover Gasket Type 2. The final compressed electrode thickness equals the combined thickness of all cover/spacer gaskets. Available in PTFE, PTFE-reinforced, Viton, and EPDM, for 2.5×2.5 cm and 5.0×5.0 cm active areas.
Replacement cover gaskets for the X-Cell with reference electrode ports and flat current collectors. Both Type 1 and Type 2 cover gaskets are required and must be combined with the matching flow-field gaskets. Available in PTFE, PTFE-reinforced (PTFEG), Viton, and EPDM, with thicknesses from 0.05 mm to 1.0 mm, for 2.5×2.5 cm and 5.0×5.0 cm active areas.
Replacement flow-field gaskets for the X-Cell with reference electrode ports and flat current collectors. The left and right gaskets are asymmetric and both are required; they must be combined with the matching cover gaskets. Available in PTFE, Viton, and EPDM, with thicknesses from 0.25 mm to 2.0 mm, for 2.5×2.5 cm and 5.0×5.0 cm active areas.
Cover and flow-field gaskets for the X-Stack electrolysis cell, for use with flat bipolar plates and a 5×5 cm active area. The stack can be configured with up to 9 cells; each cell requires 4 cover gaskets and 2 flow-field gaskets per side. The combined thickness of the cover and flow-field gaskets on each side should match the desired compressed electrode thickness. Available in PTFE, PTFE-reinforced, Viton, and EPDM.
Required when using a porous separator in the X-Cell or X-Cell with reference electrode (not compatible with the X-Stack). In alkaline electrolysis, porous separators can leak through their edges; this gasket seals around the separator perimeter to prevent this. The open area is 6.0×6.0 cm and the gasket should be 0.05–0.2 mm thinner than the separator. Available in PTFE, Viton, and EPDM, from 0.1 mm to 1.0 mm, for both 2.5×2.5 cm and 5.0×5.0 cm active areas.
The X-Stack equivalent of the porous separator sealing gasket, featuring an integrated flow manifold matching the X-Stack’s internal channel layout. Prevents edge leakage through thick porous separators in alkaline electrolysis setups. The open area is 6.0×6.0 cm and the gasket should be 0.05–0.2 mm thinner than the separator. Available in PTFE, Viton, and EPDM, from 0.1 mm to 1.0 mm.
For non-standard active areas, unusual electrode thicknesses, or custom flow-field geometries, we offer custom-cut gasket packages. Send us your cell dimensions and compression target, and we’ll prepare a configuration that matches.
For most electrolysis work, PTFE and Viton are the standard choices. PTFE for the most chemically aggressive environments or where precise spacing matters; Viton for the primary seal against membranes and flow bodies. EPDM is a good choice for alkaline-only setups where compressibility matters more than chemical breadth.
It depends on your electrode thickness and desired compression. For a 1 mm carbon felt at 25% compression, you’d typically use a gasket stack totaling 0.75 mm. Our gasket packages include an assortment of thicknesses so you can dial in the exact compression for your experiment.
Yes. Send us your cell drawing or specifications, and we’ll quote a custom gasket package. We regularly cut gaskets for custom flow-field patterns, non-standard active areas, and multi-compartment configurations.
