Swagelok double ferrule tube fittings ensure repeatable result
Swagelok’s double ferrule tube fittings:
- Absolutely leak- and gas-tight
- Highly resistant to vibration, chemicals, corrosion, high pressures and high temperatures
- Easy to install, and easily disassembled
- Can be reused multiple times

How double ferrule tube fittings can make the difference
Imagine working in a fossil fuel power plant. Then you know how crucial it is to avoid solids contamination in the steam. After all, sodium salts or other contaminants may cause faltering steam turbines, and that is something you want to avoid at all costs.
In order to measure steam purity, you decide to take steam samples. However, this means that you need to work with reliable equipment. If, for example, your tubes or fittings are not leak-tight, you cannot guarantee that your samples are representative. This, in turn, may cause you to miss detecting possible contamination. In fact, it may ultimately result in damage, downtime and perhaps even lost revenue.
This is where Swagelok comes into play. Backed by almost 70 years of experience, we have developed double ferrule tube fittings that ensure repeatable results. Our vacuum tubing fittings can ensure this, because they are equipped with not one, but two ferrules. While the front ferrule creates a seal against the fitting body, the back ferrule ensures a highly effective tube grip. This results in vacuum tubing fittings that have a true leak-tight gas seal. Thus, samples are sure to be representative, and testing is now reliable.
Would you like to learn more about our double ferrule tube fittings?
The applications of double ferrule tube fittings are almost endless
Of course, our double ferrule tube fittings are not only used when taking samples. Their possible applications are almost endless. For example, they help optimize fuel delivery lines and hydraulics. They can also be used in transmission lines, turbine control and water treatment.
Furthermore, our double ferrule tube fittings meet or even exceed nuclear industry requirements for quality and documentation, and they meet key standards, including ASME Section III and B16.34. And finally, apart from the vacuum tubing fittings, we offer valves, tubing and instrumentation as well as tailor-made solutions for any specific issue you might encounter.
