Description / Abstract:
The purpose of this report is to provide design, application and
maintenance engineers with basic information on the use of metallic
Spring Energized sealing devices when used as piston (OD) and rod
(ID) seals in aircraft fluid power components such as actuators,
valves, and swivel glands.
The Spring Energized seal is defined and the basic types in
current use are described. Guidelines for selecting the type of
Spring Energized seal for a given design requirement are covered in
terms of friction, leakage, service life, installation
characteristics, and interchangeability.
Spring Energized seals can also be made in various forms and
types, including face seals (internal and external pressure sealing
types), and rotary variants too. These further types will not be
discussed in this document, but many of the same principles apply
for them as well.