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RILSON GASKET
Ningbo Rilson Sealing Material Co., Ltd is dedicated to ensuring the secure and dependable operation of fluid sealing systems, offering clients the appropriate sealing technology solutions.
Yes — Corrugated Metal Gaskets are one of the most reliable sealing solutions for high-temperature and high-pressure applications. Their corrugated structure improves compressibility, enhances recovery performance, and ensures stable sealing even under extreme operating conditions. This makes them widely used in petrochemical plants, power generation systems, and industrial piping networks.
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What Are Corrugated Metal Gaskets?
Corrugated Metal Gaskets are sealing components made from thin metal sheets formed into a wave-like corrugated profile. The corrugation creates multiple concentric sealing lines that increase contact pressure while maintaining flexibility.
They are commonly combined with soft sealing layers such as graphite, PTFE, or ceramic fiber to enhance sealing performance. Typical base materials include stainless steel 304, 316L, Inconel, and Monel, allowing operation temperatures of up to 1000°C depending on material selection.
Why Choose Corrugated Metal Gaskets?
Compared with flat metal gaskets and soft non-metal gaskets, corrugated designs deliver superior mechanical performance and longer service life.
- High sealing efficiency: Multiple corrugation peaks create concentrated contact stress, improving leak tightness.
- Excellent resilience: Spring-like corrugations provide better recovery after pressure fluctuations.
- Wide temperature range: Suitable for cryogenic to ultra-high temperature environments.
- Chemical resistance: Compatible with corrosive media such as acids, steam, and hydrocarbons.
Typical Applications of Corrugated Metal Gaskets
Due to their durability and sealing reliability, Corrugated Metal Gaskets are used across multiple heavy industries.
- Oil and gas pipelines and refineries
- Power plants and heat exchangers
- Chemical processing equipment
- Pressure vessels and industrial boilers
- Marine and offshore platforms
Key Technical Parameters to Consider
Selecting the correct Corrugated Metal Gasket requires evaluating operating conditions and equipment requirements.
| Parameter | Typical Range | Impact on Performance |
|---|---|---|
| Operating Temperature | -200°C to 1000°C | Material stability and sealing life |
| Pressure Rating | Up to 250 bar | Leak resistance and safety |
| Metal Thickness | 0.2 mm – 0.5 mm | Compressibility and recovery |
How to Extend Service Life of Corrugated Metal Gaskets?
Proper installation and maintenance significantly improve gasket lifespan and sealing reliability.
- Ensure flange surfaces are clean and flat
- Apply uniform bolt tightening torque
- Avoid over-compression beyond design limits
- Use compatible soft facing materials
- Perform regular inspection during shutdown cycles
FAQ About Corrugated Metal Gaskets
Can Corrugated Metal Gaskets be reused?
In most cases, reuse is not recommended. Although the metal core may remain intact, the sealing layers often experience permanent deformation, reducing sealing reliability.
Are Corrugated Metal Gaskets better than spiral wound gaskets?
Both have advantages. Corrugated Metal Gaskets perform better under low bolt load and thermal cycling conditions, while spiral wound gaskets are preferred for extremely high-pressure flanged joints.
What soft facing material is best?
Graphite is the most common choice due to its high temperature resistance and chemical stability, while PTFE is ideal for highly corrosive chemical environments.
