White Papers

Dating back to the 1970s, Omniseal® PTFE rotary lip seals or rotary shaft seals were introduced to bridge the performance gap between conventional elastomer lip seals and mechanical face seals. From the 1970s to 1980s, Omniseal Solutions worked closely with customers to quickly qualify these lip seals in applications for critical industries including industrial and aviation. Since this time, our manufacturing and engineering business has been providing the polymer solution to meet the high-performance requirements from customers including leakage and wear life. Performing in hostile environments where elastomer lip seals fail and in some cases where mechanical face seals are used, Omniseal Solutions’ PTFE lip seals are selected as they help to overcome extreme temperatures, aggressive media, high surface speeds/pressure, and lack of lubrication conditions.

It is a pretty well-known fact that space manufacturers and design engineers spend countless hours testing critical components in their launch vehicle systems such as cryogenic applications where leakage rate remains one of the most challenging and dangerous elements. If the leakage rate becomes too high, this can cause catastrophic failure. This is the reason rocket sealing solutions, especially those used in tanks and feedlines, must meet very stringent specifications. Aside from leakage rate, it is important to note that cryogenic systems are subject to other performance stressing factors that must also be considered in order to secure a well-balanced solution.