Common aerospace seal types, unrelenting performance requirements.
Seals in critical aerospace need to meet performance conditions that can change dramatically between takeoff or launch, high altitude or orbit, and return to landing. They need to function at ambient temperature, elevated and subzero temperatures often within the course of minutes or hours. Specialty material formulations and profiles are developed for fuel and coolant management, jet and rocket fuels, landing gear and flight control actuation hydraulics. Seal types range from o-rings through fluid power seals, cassette seals, boots, bellows, and plate seals, and rubber/metal bonded configurations.