The wave spring is a compact axial spring, which obtains its spring properties through its wave-like shape.
The FK 9 wave spring is primarily used for tensioning and readjusting in high-temperature applications. This makes them suitable, for example, for use in exhaust plug-in connections. Here, an FK 5-HFL Fey laminar ring can be tensioned to cover the sealing gap of the plug-in connection. The resulting double sealing line can reduce leakage.
Axial movements due to thermal expansion are offset by the spring movement. Use of this sealing technology is limited to static applications.
Typical Applications