Graphite Gasket Product Detailed Description

Graphite gaskets, an essential product for high-temperature and high-pressure sealing applications, are widely used in refineries, chemical and petrochemical plants, paper mills, and industrial fluid sealing applications due to their excellent high-temperature resistance, pressure endurance, and low friction performance. The material structure of graphite gaskets ensures outstanding performance in extreme conditions, ensuring long-term stable operation of equipment.

1. Basic Features of Graphite Gaskets

One of the main advantages of graphite gaskets is their excellent temperature adaptability. These gaskets can withstand temperatures up to 500°C in dry environments, while they can endure 650°C in steam environments, making them ideal for high-temperature work conditions. The high-temperature resistance of graphite enables it to provide long-lasting sealing in harsh applications, especially in metal jacketed gaskets, heat exchanger gaskets, and corrugated metal gaskets.

The second major feature of graphite gaskets is their high-pressure resistance. In typical applications, graphite gaskets can maintain structural stability and provide excellent sealing performance at pressures up to 40 bar. For applications requiring extremely high compression resistance, stainless steel foil graphite gaskets and stainless steel insert graphite gaskets excel, with maximum pressure ratings reaching up to 140 bar. These gaskets are commonly used in steam systems and flange gaskets for pipelines and machinery.

Additionally, graphite gaskets offer excellent sealing properties with their closed-cell structure, effectively preventing the penetration of gases and liquids and ensuring high-efficiency protection in various applications. The low friction performance of graphite gaskets further reduces wear caused by friction, thus enhancing their service life.

2. Adaptability and Application Scenarios

Graphite gaskets have wide applicability in many industrial applications. First, they are suitable for equipment and systems that require high-temperature and high-pressure sealing, especially in refineries, chemical plants, and petrochemical industries. Since graphite has excellent chemical resistance, it can effectively resist chemical erosion, giving graphite gaskets unparalleled advantages in harsh chemical environments.

In the paper industry, the high-temperature and high-pressure resistance properties of graphite gaskets make them ideal for ensuring efficient operation of equipment. Additionally, graphite gaskets play a key role in steam service, industrial fluid sealing, and electrochemical applications, providing long-lasting sealing performance, preventing equipment damage from leaks, and extending the service life of equipment.

3. Material Composition of Graphite Gaskets

Graphite gaskets typically come in three common material compositions: homogeneous graphite, stainless steel foil graphite, and stainless steel insert graphite.

• Homogeneous Graphite: These gaskets contain no fibers, adhesives, or additives, offering excellent flexibility and the ability to fill surface defects, ensuring stable sealing performance. They are commonly used in metal jacketed gaskets, heat exchanger gaskets, and corrugated metal gaskets. Homogeneous graphite also has superior aging resistance and ozone resistance, making it suitable for high-temperature, high-pressure, and chemical environments.

• Stainless Steel Foil Graphite: These gaskets are made by adding stainless steel foil to homogeneous graphite, enhancing their pressure resistance. This type of gasket is suitable for higher pressure applications, such as steam systems and pipeline flange seals. Their high-pressure resistance allows them to withstand extremely high pressure while providing better sealing performance.

• Stainless Steel Insert Graphite: This type of graphite gasket contains several stainless steel insertions, further enhancing the gasket's pressure resistance. It is ideal for applications requiring high-pressure and high-temperature sealing performance, particularly in steam systems and environments with extremely high pressures and temperatures.

4. Applications

The main application areas for graphite gaskets include but are not limited to:

• Refineries: Graphite gaskets maintain sealing performance in extremely high-temperature and high-pressure environments and are commonly used in refineries and other high-temperature, high-pressure settings. They can be used to seal pipelines, heat exchangers, storage tanks, and other equipment, ensuring safe operation.

• Chemical and Petrochemical Plants: Due to their outstanding chemical resistance, graphite gaskets are widely used for pipeline and equipment sealing in chemical and petrochemical industries. They effectively prevent chemical leaks and resist corrosion, ensuring the safety of both equipment and personnel.

• Paper Mills: In paper mill equipment, graphite gaskets provide efficient sealing protection, ensuring long-term stable operation of the equipment. They can withstand high-temperature and high-pressure environments, preventing liquid leaks and reducing equipment wear.

• Industrial Fluid Sealing: Graphite gaskets are widely used in sealing liquids and gases, especially in environments requiring high-pressure and high-temperature resistance. They are commonly used in liquid transportation pipelines, pressure vessels, heat exchangers, and other equipment.

• Vibration Damping: Graphite gaskets have some vibration-damping capabilities and are commonly used in vibration-damping devices to reduce the impact of mechanical vibrations on the surrounding environment.

• Steam Service: Graphite gaskets are frequently used in steam piping systems, providing effective sealing in high-temperature and high-pressure environments, ensuring safe operation of steam systems.

• Electrochemical Applications: Graphite gaskets are also commonly used in electrochemical applications, such as battery systems and fuel cells, where they offer good sealing performance and resistance to chemical corrosion.

5. Customization Services

Nanjing Yuhang Rubber Co., Ltd. offers highly customized graphite gasket services based on customer needs. Customers can choose the appropriate graphite gasket material, thickness, and size according to the specific working environment. Whether for single-model gasket production or bulk customized production, Nanjing Yuhang Rubber can meet customer needs. Additionally, the company offers various surface treatments, bonding backings, and special formulations to ensure each gasket perfectly fits the customer's application requirements.

6. FAQ

Q1: What is the maximum temperature that graphite gaskets can withstand?
A1: Graphite gaskets can withstand up to 500°C in dry environments and 650°C in steam environments.

Q2: What pressure can graphite gaskets handle?
A2: In regular applications, graphite gaskets can withstand up to 40 bar. For higher pressure applications, stainless steel foil graphite and stainless steel insert graphite gaskets can handle up to 140 bar.

Q3: What industries commonly use graphite gaskets?
A3: Graphite gaskets are widely used in refineries, chemical and petrochemical plants, paper mills, steam service, and electrochemical applications.

Q4: How resistant are graphite gaskets to corrosion?
A4: Graphite gaskets have excellent chemical resistance, effectively resisting corrosion caused by various chemicals, making them suitable for harsh chemical environments.

Q5: How does Nanjing Yuhang Rubber offer customization services?
A5: Nanjing Yuhang Rubber provides customized graphite gaskets based on customers' working environments and application needs, including material selection, thickness, and size options.

7. Conclusion

Graphite gaskets are widely used in various industrial sectors due to their excellent high-temperature resistance, pressure endurance, low friction, and chemical corrosion resistance. Nanjing Yuhang Rubber Co., Ltd., with its rich experience and professional technology, offers high-quality, reliable graphite gaskets to meet various application needs. Whether in high-temperature, high-pressure, chemical medium applications or those requiring strict tolerance, Nanjing Yuhang Rubber provides the best solutions for customers.