The high‑performance answer to fluid sealing problems where conventional products fail to give the integrity or reliability required.
Spring-energised seals are far from new - we have been manufacturing them since the 1940s. But we now offer a full range of Unilion precision-engineered products that meet the following parameters:
Based on these operational benefits, we recommend Unilion for applications that preclude the use of more conventional elastomeric/polymeric seals on arduous duties in areas such as:
Moreover, Unilion spring energised seals have no storage period limitation. They can safely be held in stock on-site to meet OEM and maintenance requirements.
As a single Unilion can often perform three sealing duties - static, reciprocating and rotary - this can also reduce your stockholding requirements and simplify inventory control.
An overview of how the spring energised seal works and details of our standard Unilion profiles.
An overview of our standard materials for Unilion spring energised seal jackets.
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.
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.