Sealing Systems
Greene Tweed’s comprehensive range of high-performance sealing systems ensures the utmost in reliability and mission continuity in extreme temperatures of up to 260°C and harsh operating conditions, and has been the solution of choice for manufacturers worldwide for over 50 years.
Seal types include:
- Rod Seals – prevent fluid escape through the rod exit of a cylinder chamber
- Piston Seals – prevent fluid transfer between chambers in reciprocating pistons
- Scrapers & Wipers – prevent contaminants from entering a system
- Static Seals – prevent fluid leakage between joined non-moving surfaces
- Rotary Seals – provide sealing against rotary or oscillating surfaces with no translational motion
The FDA-compliant solutions are highly customizable and meet the demanding requirements of a wide range of defense applications, including:
- UAVs & Aircraft – fuel, engine utility, and flight control systems
- Ground Vehicles & Systems – hydraulic and electrical actuation, recoil systems, and engine components
- Naval – propulsion systems, missile systems, and onboard electronics
The product portfolio includes:
- AGT Rings – bidirectional rod and piston T-seals for static & dynamic aerospace applications
- ACT Rings – T-seals with converging slides for enhanced lubrication and reduced friction and wear
- Arlon® 3000 XT – high-pressure and high-temperature seals for extreme environments
- Canted Coil MSE® – high-durability seals with superior leakage control for small-diameter applications





