🔷 Overview of gaskets in high-temperature environments

In industrial systems such as:

• Steam systems
• Oil & gas plants
• Power plants
• Chemical plants

👉 Gaskets play a critical role in:

• Preventing fluid leakage
• Maintaining system pressure
• Ensuring operational safety

However, in high-temperature environments (>200°C), not all gasket materials are suitable.

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⚙️ Requirements for high-temperature gaskets

Gaskets used in high-temperature applications must meet the following requirements:

✔️ High temperature resistance

• From 200°C to over 600°C

✔️ High pressure resistance

• Class 150 to Class 2500

✔️ Dimensional stability

• Maintain sealing integrity without deformation

✔️ Chemical resistance

• Resist degradation in harsh environments

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🔧 Common types of high-temperature gaskets

1. Spiral Wound Gasket

👉 The most widely used gasket for high-temperature applications

• Made of metal windings with graphite or PTFE filler
• Temperature resistance up to ~500–600°C
• Excellent sealing performance

✔️ Application: steam systems, oil & gas, power plants

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2. Graphite Gasket

• Extremely high temperature resistance (>600°C)
• Excellent chemical resistance
• Good flexibility

✔️ Application: steam lines, furnaces, chemical plants

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3. Metal Gasket (RTJ)

• Ring Type Joint (RTJ) design
• Metal-to-metal sealing
• Suitable for extreme pressure and temperature

✔️ Application: high-pressure oil & gas systems

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4. PTFE Gasket

• Excellent corrosion resistance
• Moderate temperature limit (≤260°C)

✔️ Application: mild chemical environments

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📊 Quick comparison of high-temperature gaskets

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⚠️ Common mistakes

• Using rubber gaskets in high-temperature environments → burning and leakage
• Selecting incorrect material → reduced lifespan
• Not checking actual operating temperature

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🔥 Quick selection tips

👉 Steam & high temperature → Spiral wound + graphite gasket
👉 Extremely high temperature → Graphite gasket
👉 Extreme pressure → Metal RTJ gasket
👉 Chemical applications → PTFE gasket

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🏁 Conclusion

High-temperature gaskets must provide:

• Excellent heat resistance
• Reliable sealing performance
• Suitable material compatibility

👉 Choosing the right gasket helps:

• Prevent leakage
• Extend equipment lifespan
• Ensure system safety

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📞 Contact Information

Phuc Minh Engineering Co., Ltd (PM-E) specializes in supplying gaskets, flanges, valves, and piping components that meet international standards.

• 🌐 Website: pm-e.vn
• 📧 Email: info@pm-e.vn
• 📱 Hotline: +84 907 450 506 – +84 902 720 814 – +84 979 737 351