Spring-loaded seal

Cmetalfor aircraft

Overview
Metal face C-Seals help overcome both heat and pressure pulsating sealing challenges. The key to the seal's performance is the high springback provided by the C-shaped construction. These resilient seals are suitable for internal, external and axial pressures under extreme conditions that preclude the use of organic gaskets.

Key points

• High springback due to C-shaped construction for superior resilience.
• Suitable for internal, external and axial pressure sealing.
• Operates across extreme temperature and pressure ranges where organic gaskets fail.
• Optional plating or coating provides a softer surface to reduce leak rates and conform to minor flange imperfections.

Typical applications

• Heat exchangers in Oil & Gas
• Laser equipment
• Cryo-coolers
• Cask seals in nuclear waste management
• Boss seals
• Injection molding
• Aviation fuel and air systems

Standard specifications
Materials: Alloy Inconel® X-750, Alloy Inconel® 718
Use: internal, external & axial pressures under conditions that exclude organic gaskets
Temperature range: -253°C to +1100°C (-423°F to +2000°F)
Pressure range: high vacuum to 5,500 BAR (79,770 PSI)
Leakage rate: 1e-2 to 1e-10 mbar·l/s (depending on post-treatment)
Clamping load: approximately 250 N/mm of seal circumference
Dimensions: diameter 6 mm to 3000 mm (custom sizes on request)
Cross-section: 0.79 to 12.70 mm
Minimum tolerances: ±0.05 mm

PFAS statement
By its nature, this component is PFAS-Free*. PFAS-Free here means PFAS materials are not intentionally added to the product; it does not exclude the possibility of trace environmental contamination.

Technical specifications

• Materials: Alloy Inconel® X-750; Alloy Inconel® 718
• Use cases: internal, external and axial pressure sealing under extreme conditions
• Temperature range: -253°C to +1100°C (-423°F to +2000°F)
• Pressure capability: from high vacuum up to 5,500 BAR (79,770 PSI)
• Leakage rate: from 1e-2 to 1e-10 mbar·l/s depending on post-treatment
• Recommended clamping load: ~250 N/mm of seal circumference
• Available diameters: 6 mm to 3000 mm (custom sizes on request)
• Cross-section range: 0.79 mm to 12.70 mm
• Minimum manufacturing tolerances: ±0.05 mm