
Metal Seals & Metal O-Rings
High-Performance Metallic Sealing Solutions for Extreme Conditions
Introduction
KAFLON Metal Seals and Metal O-Rings are engineered for extreme operating environments where elastomer or polymer seals cannot provide sufficient reliability.
Manufactured from high-performance metal alloys, these seals deliver exceptional resistance to high pressure, extreme temperature, vacuum, and aggressive media.
Metal sealing solutions are widely used in oil & gas, aerospace, energy, chemical processing, and high-pressure industrial systems, where long-term stability and zero leakage performance are critical.

Key Advantages of KAFLON Metal Seals
Outstanding sealing performance under extreme pressure and temperature
Excellent resistance to corrosion, oxidation, and aggressive chemicals
Minimal creep and permanent deformation
Suitable for static and limited dynamic applications
Long service life in harsh and safety-critical environments
KAFLON metal seals are designed to meet stringent industrial and international standards, ensuring consistent performance even under the most demanding conditions.
Materials & Alloy Options
KAFLON metal seals are available in a wide range of alloys to match specific operating environments:
- Stainless Steel (304, 316, 321)
- Inconel®
- Hastelloy®
- Monel®
- Aluminum Alloys
- Copper & Nickel Alloys
Optional surface treatments:
- Silver plating
- Gold plating
- PTFE or solid lubricant coatings
Material selection is based on pressure, temperature, chemical compatibility, and flange surface finish.
Types of Metal Seals

-
Cryogenic Metal Seal RingUltra-Low Temperature Metal Sealing Solutions for LNG & Cryogenic Systems--They are widely used in LNG systems, cryogenic valves, pipelines, and storage equipment, ensuring leak-tight sealing under thermal contraction and pressure...view more
-
Metal Seal For High-Temperature ApplicationsDurable Metal Seals for Extreme Temperature Applications-The combination of precision machining and metallurgical stability ensures long-term sealing reliability even under harsh operating conditions.view more
-
NBR Bonded SealNBR Bonded Seal for Reliable Sealing of Hydraulic and Threaded Connectionsview more
-
NBR Self Centering Bonded SealSelf Center Bonded Seals are widely used in hydraulic equipment, automotive systems, construction machinery, and industrial machinery where reliable pressure sealing is required.view more
-
High Temperature Resistance Metal RingHigh Temperature Resistance Metal Ring is a precision-engineered sealing component designed for extreme temperature, high pressure, and harsh operating environments. Manufactured from high-performance metal alloys, it provides reliable...view more
-
Inconel 718 Metal O RingInconel 718 metal O rings are specially designed to withstand the challenging conditions of high-temperature applications.view more
Engineering Comparison Table
| Parameter | Metal Seal | Elastomer Seal | PTFE / Spring Energized Seal |
|---|---|---|---|
| Pressure Capability | ★★★★★ | ★★☆☆☆ | ★★★★☆ |
| Temperature Range | ★★★★★ | ★★☆☆☆–★★★☆☆ | ★★★★★ |
| Chemical Resistance | ★★★★★ | ★★☆☆☆–★★★★☆ | ★★★★★ |
| Dynamic Sealing | ★☆☆☆☆ | ★★★★☆ | ★★★★★ |
| Elastic Recovery | ★★☆☆☆ | ★★★★★ | ★★★★☆ |
| Friction Level | ★☆☆☆☆ | ★★★☆☆ | ★★★★★ |
| Vacuum Compatibility | ★★★★★ | ★★☆☆☆ | ★★★★★ |
| Cost Efficiency | ★★☆☆☆ | ★★★★★ | ★★★☆☆ |
| Custom Design Capability | ★★★★☆ | ★★★☆☆ | ★★★★★ |
How to Choose the Right Seal
Choose Metal Seals when:
- Operating temperature exceeds elastomer or PTFE limits
- Extremely high pressure or vacuum is present
- Zero leakage and long-term stability are required
Choose Elastomer Seals when:
- Cost efficiency is critical
- Pressure and temperature are moderate
- High elasticity and simple installation are preferred
Choose PTFE / Spring Energized Seals when:
- Chemical resistance is critical
- Low friction and precision motion are required
- Wide temperature range with dynamic sealing is needed

Why Choose KAFLON Metal Seals
Engineering-driven metal sealing design
Broad alloy and coating selection
Custom solutions for non-standard applications
Stable quality and consistent manufacturing
Support for global industrial projects and OEMs
KAFLON works closely with customers to deliver metal sealing solutions that improve safety, reliability, and operational efficiency.
Find professional metals manufacturers and suppliers in China here. Please feel free to buy customized metals at competitive price from our factory. Quality products and competitive price are available.
bonded sealing compound, injection molded sealing compound, spherical sealing compound
