Full definition
Corrugated metal gaskets are a type of sealing element specifically designed for high-performance applications where traditional soft gaskets might fail. These gaskets are constructed from metallic materials such as 316 stainless steel or Inconel 625, which provide excellent resistance to high temperatures and corrosive environments. The unique feature of these gaskets is their concentric corrugation pattern, which not only enhances elasticity but also allows for a superior sealing capability without the need for soft filler materials. The corrugations enable the gasket to maintain a tight seal even under fluctuating temperatures and pressures, making them ideal for applications where thermal cycling occurs frequently.
One of the key advantages of corrugated metal gaskets is their ability to withstand extreme conditions, with service temperatures reaching up to 600 °C. This makes them suitable for use in various industrial processes, including oil and gas, chemical processing, and power generation. The corrugations flatten under the application of bolt load, and the recovery force of the metal ensures that the gasket remains in contact with the flange surface, thus preventing leakage. This feature is particularly important in applications where maintaining a seal is critical for operational safety and efficiency.
The design and manufacturing of corrugated metal gaskets are governed by standards such as DIN 2697, which outlines the specifications and testing requirements for these gaskets. This standard is essential for ensuring that the gaskets meet industry requirements for performance and reliability. In scenarios where spiral-wound gaskets are impractical due to space constraints or specific pressure and temperature conditions, corrugated metal gaskets provide a viable alternative, ensuring a secure seal in critical applications.