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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.

 

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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

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  • Cryogenic Metal Seal Ring
    Ultra-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...
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  • Metal Seal For High-Temperature Applications
    Durable Metal Seals for Extreme Temperature Applications-The combination of precision machining and metallurgical stability ensures long-term sealing reliability even under harsh operating conditions.
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  • NBR Bonded Seal
    NBR Bonded Seal for Reliable Sealing of Hydraulic and Threaded Connections
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  • NBR Self Centering Bonded Seal
    Self Center Bonded Seals are widely used in hydraulic equipment, automotive systems, construction machinery, and industrial machinery where reliable pressure sealing is required.
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  • Self Center Bonded Seal
    Self-Centering Dowty Seal / Bonded Washer with Centering Lip
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  • High Temperature Resistance Metal Ring
    High 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...
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  • Inconel 718 Metal O Ring
    Inconel 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

 

 

 
01
 

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
 
02
 

Choose Elastomer Seals when:

  • Cost efficiency is critical
  • Pressure and temperature are moderate
  • High elasticity and simple installation are preferred
 
03
 

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
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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
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