1. Petroleum and Chemical Industry
- Key Equipment: Hydrogenation reactors, cracking furnaces, high-temperature/pressure pipelines, catalytic cracking units.
- Operating Conditions: Must withstand corrosive media such as hydrogen sulfide and high-pressure hydrogen, with sealing pressures ranging from tens to hundreds of MPa.
- Example: Metal ring gaskets are used in reactor flange seals in refinery hydrodesulfurization units to prevent hydrogen leakage.
2. Power and Energy Industry
- Thermal Power: Boiler systems, high-temperature steam pipelines (exceeding 500°C) in steam turbines.
- Nuclear Power: Reactor pressure vessels, main pump flanges, steam generators, requiring absolute sealing reliability to prevent radiation leaks.
- Example: Metal ring gaskets seal the reactor pressure vessel head in nuclear power plant primary loop systems.
3. Aerospace
- Applications: Rocket engine fuel pipelines, spacecraft propulsion systems.
- Critical Requirements: Resistance to extreme vibration and rapid temperature fluctuations (e.g., liquid oxygen/hydrogen environments).
- Example: Special alloy ring gaskets are used in liquid hydrogen fuel pipeline flanges to prevent low-temperature embrittlement and leakage.
4. Marine and Offshore Engineering
- Applications: LNG (liquefied natural gas) carrier cryogenic storage tanks, deep-sea drilling equipment.
- Challenges: Resistance to cryogenic temperatures (below -160°C) or high-pressure deep-sea environments.
- Example: Stainless steel or nickel-based alloy ring gaskets are used for flange sealing in LNG ship cargo tanks.
5. Nuclear Industry and Waste Management
- Equipment: Nuclear fuel reprocessing systems, radioactive waste storage containers.
- Requirements: Long-term sealing integrity (decades) and resistance to radiation degradation.
- Example: Multi-layer metal ring gaskets with inert gas shielding are applied in nuclear waste storage tanks to prevent leakage.
6. Heavy Machinery and Pressure Vessels
- Applications: Compressor cylinders, high-pressure reactors, supercritical fluid equipment.
- Features: Maintain sealing integrity under frequent pressure cycling (e.g., compressor start-stop operations).
Why Choose Metal Ring Gaskets?
- Extreme Condition Adaptability: Wide temperature range (-200°C to 1000°C), pressure resistance exceeding 100 MPa.
- Long Service Life: Superior performance in high-temperature creep and stress relaxation compared to non-metallic gaskets.
- Safety: Extremely low leakage rates, ideal for toxic, flammable, explosive, or radioactive media.
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