- Sealing Solutions
- Sealing Solutions
Electrolyzer gaskets
Hutchinson seals for electrolysers are specially designed to ensure the necessary sealing performance in electrolysis systems. They play a crucial role in preventing leaks and protecting internal components from corrosive environments. Drawing on Hutchinson’s expertise in rubber moulding, we optimise the design to ensure efficient and reliable assembly.
Our simulation and testing capabilities ensure optimal performance. The materials used, including a range of rubbers specially formulated to be compatible with KOH and ultrapure water, offer exceptional durability and resistance to high pressures. They are also complemented by a tailored design. The precise and reliable injection moulding process ensures proven adhesion to bipolar frames and plates, whether made from engineering polymers or steel.
- Solutions designed for alkaline and PEM electrolysers
- High-pressure sealing, from -50 °C to +150 °C
- PFAS-free formulation with very low leaching
- Durability in acidic, oxygenated, hydrogenated and strongly basic environments
- Proven adhesion to frames and bipolar plates
Key features
Applications
- Alkaline electrolysers: ALK electrolyser seals
- PEM electrolysers: frame sealing
- Stack plate seals
- Flange seals for electrolyser BOP
- Hydrogen production, energy and energy infrastructure
Characteristics
- Alkaline electrolyser: PFAS-free EPDM, high-pressure sealing, -50 °C to +150 °C
- PEM electrolyser: PFAS-free EPDM with very low leaching, -50 °C to +150 °C
- Resistance to acidic, oxygenated and hydrogenated media
- Stack plate seals: PFAS-free EPDM, FKM or silicone, with a working pressure of 206 bar and a burst pressure of 620 bar
- Flange seals for BOP: optimised high-pressure design, -50 °C to +200 °C
- Durability in strong acidic and alkaline environments
- Excellent resistance to ultrapure water and oxygen
- Excellent rubber-to-substrate adhesion
Strengths
- Precise and repeatable injection moulding and overmoulding
- Proven adhesion to technical polymer or steel frames
- Ultra-low EPDM leaching, preserving fluid purity and system efficiency
- Compounds developed using hydrogen-specific testing methodologies
- Supply of production parts for major electrolysers programmes
- Simulation and testing capabilities
Energies
Machines Industrielles
Urban Mobility