How Swagelok Tube Fittings Achieve Leak-Tight Performance
Swagelok® tube fittings are engineered to deliver consistent, leak-tight performance in a wide range of fluid system applications. Learn how Swagelok® tube fittings achieve leak-tight performance by minimizing the gap between sealing surfaces and maximizing seal length through a proven two-ferrule design. A reliable seal is essential for maintaining system efficiency, protecting personnel, reducing emissions, and minimizing costly downtime. In this video, you'll learn how the Swagelok two-ferrule tube fitting design helps create and maintain a dependable seal under varying operating conditions, including pressure fluctuations, vibration, and thermal cycling. You'll also gain insight into the design features, manufacturing precision, and installation practices that contribute to long-term fitting performance. Understanding these principles can help improve system reliability and support safer operation.
Video Transcript
Many factors can contribute to leakage, including the height of the gap between sealing surfaces and the length of the seal. In general, the height of the gap between sealing surfaces should be minimized to hinder leakage. Also, the length of the seal should be maximized because the longer the length of contact between sealing members, the less leakage will occur.
When properly made up, the Swagelok tube fitting will not leak and will hold beyond the burst pressure of the tubing. The fitting’s two-ferrule design and one-and-a-quarter-turn makeup minimize the height of the gap between the sealing surfaces and maximize the length of the seal. Both factors contribute to a leak-tight design.
