New Website

admin • July 1, 2010

Eclipse Engineering is proud to be displaying our new website. This will be a continual work in progress as we add function to the site and continue to make it more user friendly and include information that you can actually use.

We’re very excited to move this step forward and are happy to have some new style. There are many ideas floating around here to include technical data and engineering references to the site. Hopefully with some time, we will make this a site that you as a customer can use on a regular basis.

Please feel free to leave questions, comments, & suggestions for us to help make this a usable site.

Compare canted coil, cantilever, and helical springs to find the right energizer for your PTFE seal.
By Doug Montgomery June 24, 2025
Aside from ball valve seats or non-contact labyrinth seals, PTFE is rarely used without a secondary energizer. This is due to PTFE’s inelastic nature. Unlike urethanes or elastomers which possess an inherent springiness, PTFE is often considered an “unalive” material. Much like a lump of clay, it will not bounce back once deformed. Especially in dynamic applications, this is not a desirable quality. Fortunately, with the addition of a spring or elastomer energizer, all of PTFE’s excellent attributes can be fully exploited in terms of sealing. Much like the rest of the seal industry, Eclipse utilizes three metallic spring energizer types for the seals we manufacture. Canted Coil, Cantilever V-Spring, and Helical. While each spring type ultimately accomplishes the same task, energizing a PTFE or polymer seal jacket, we’ll see that each type has unique properties better suited to certain applications.  Figure 1 below shows generalized load versus deflection curves for the three spring types. As you can see, each one is quite a bit different, favoring distinct circumstances and applications. Though, we’ll also find out load curves are not only deciding factor when choosing a spring.
By Doug Montgomery May 28, 2025
Explore the innovation behind Eclipse’s polymer superfinishing technique that enabled high-performance PTFE seals to meet extreme hydrogen leakage and durability requirements in cryogenic aerospace applications.
By Doug Montgomery April 17, 2025
Discover how Eclipse Engineering optimized seal design for high-pressure CO₂ extraction, addressing extrusion gaps and wear ring exposure challenges.
Learn how Eclipse solved manufacturing challenges for micro spring-energized seals
By Doug Montgomery March 21, 2025
Learn how Eclipse solved manufacturing challenges for micro spring-energized seals, optimizing sealing performance in epoxy dispensing equipment.