Metal Serrated Gasket

Metal serrated gaskets, also known as kammprofile gaskets, are high-performance sealing components designed for high-temperature, high-pressure, and critical industrial applications. The unique serrated surface structure forms multiple sealing lines when compressed between flanges, ensuring excellent leak prevention even under extreme operating conditions.

These gaskets are widely used in petrochemical plants, power generation facilities, nuclear power systems, and heavy industrial equipment, where reliable sealing performance is essential for operational safety.

Manufactured from high-strength metals such as stainless steel, nickel alloys, titanium, or copper, metal serrated gaskets can also be combined with soft facing layers like graphite or PTFE to enhance sealing performance and protect flange surfaces.

Key Advantages of Metal Serrated Gaskets

Outstanding Performance in Extreme Conditions

Metal serrated gaskets are engineered to withstand very high temperatures and pressures. Depending on the selected material, they can maintain sealing integrity in environments reaching up to 1000°C and pressures exceeding 100 MPa, while resisting thermal cycling and mechanical stress.

Superior Sealing Mechanism

The precision-machined concentric serrations create multiple metal-to-metal sealing lines. When bolt load is applied, the serration peaks embed slightly into the flange surface, effectively blocking leakage paths and ensuring tight sealing.

Excellent Elastic Recovery

The serrated structure provides high resilience and elastic recovery, allowing the gasket to compensate for minor flange surface irregularities and small movements caused by temperature or pressure fluctuations.

Long Service Life

Compared with soft gaskets, metal serrated gaskets offer better resistance to creep, aging, and radiation, resulting in longer service life and reduced maintenance frequency.

Flexible Material Options

A wide range of materials are available to match specific temperature, corrosion resistance, and pressure requirements, including stainless steel, nickel-based alloys, titanium, and copper.

Customizable Structural Designs

Different designs such as flat type, raised-face type, or gaskets with inner and outer rings can be manufactured to meet standards including ASME, EN, and JIS flange systems.

Typical Applications

Energy and Power Generation

Used in steam turbines, boilers, and high-temperature steam pipelines, where stable sealing is essential for safe operation.

Nuclear Power Systems

Suitable for auxiliary pipeline connections requiring high reliability and radiation resistance.

Petrochemical and Refining Industry

Commonly used in catalytic cracking units, hydrocracking reactors, reformers, and high-temperature heat exchangers.

Oil and Gas Processing

Installed in high-pressure pipelines, pumps, and valve flange connections handling aggressive hydrocarbons.

Heavy Industrial Equipment

Applicable in high-pressure test equipment, compressors, pumps, and marine propulsion systems.

Product Features

Precision Manufacturing

Advanced CNC machining or precision forming processes ensure uniform serration spacing and height, providing consistent sealing stress distribution.

Optimized Serration Geometry

The carefully designed serration profile balances sealing pressure and flange protection, preventing excessive deformation while maintaining tight sealing.

Stress Control Design

Smooth root transitions in the serrations reduce stress concentration and enhance fatigue resistance during thermal cycling.

Composite Facing Options

Thin layers of graphite or PTFE facing can be added to improve sealing performance at lower bolt loads and protect flange surfaces from direct metal contact.

Full Quality Traceability

Materials can be supplied with Mill Test Certificates (MTC), and optional inspections such as dimension measurement, hardness testing, and PMI (Positive Material Identification) ensure compliance with industry standards.