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H2 proven plastics

We continually strive to offer innovative solutions through our vast experience in thermoplastic engineering backed‑up by robust testing.

Our range of Devlon materials is amongst the toughest and hardest-wearing thermoplastics and our extensive working relationship with our customers has allowed us to develop a portfolio suited to the variety of applications experienced within the valve industry. Within our range we can offer materials that are:

  • Tested and qualified for hydrogen service
  • Suited for high temperature and high pressure applications
  • Provide lower frictional losses than PEEK products
  • Offer exceptional resistance to wear and abrasion
  • Are sufficiently conformable to seal in low pressure valve applications
  • Provide total assurance of product quality and traceability with Positive Material Identification (PMI) technology

Our products

H2 proven products and materials

Our range of products and materials that have been independently third party tested and are validated by James Walker for sealing applications in hydrogen service.

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H2 proven products and materials
Our technology


Whilst a decision on the proposed PFAS regulation, and the likely timeline for implementation, are still being considered by the ECHA, James Walker is proactively looking at, and qualifying, alternative materials and working with its suppliers to ensure sealing materials are available that will offer the required levels of performance and be compliant with any proposed regulations.

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Expert to Expert

Want to discuss your project, engineering or materials challenge expert to expert? Simply provide us with your contact details and a little information about the application you are working on, and one of our experts will contact you as soon as possible.

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