O-Rings and Sealing Rings in a Jet Engine

 O-Rings and Sealing Rings in a Jet Engine

O-rings and sealing rings are critical components in jet engines, ensuring proper sealing, preventing leaks, and maintaining system integrity under extreme conditions. These rings are used in various engine sections, including fuel systems, hydraulic systems, and compressor and turbine assemblies.

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Table: Types of O-Rings and Sealing Rings in a Jet Engine

Type of Ring	Material	Temperature Resistance	Application in Jet Engine	Key Features
O-Rings	Nitrile Rubber (NBR)	-40°C to 120°C	Fuel & Oil Seals	Good chemical resistance
	Fluorosilicone (FVMQ)	-60°C to 200°C	High-temp fuel lines	Excellent thermal stability
	Viton (FKM)	-30°C to 250°C	Hydraulic & Lubrication	High resistance to fuels
Metallic Sealing Rings	Inconel	Up to 1000°C	Turbine & Exhaust Sections	High temperature and corrosion resistance
	Stainless Steel	Up to 800°C	Compressor & Turbine	Durability under high pressure
Carbon Seals	Carbon-Graphite	Up to 600°C	Bearing Chambers	Low friction and high wear resistance
Labyrinth Seals	Metal Alloys	Up to 900°C	High-Speed Rotating Parts	Non-contact sealing to minimize leakage
PTFE Seals	Polytetrafluoroethylene	-200°C to 260°C	Fuel & Hydraulic Systems	Low friction and chemical resistance