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Advantages and applications of 304 stainless steel outer ring graphite spiral wound gasket

Jiangsu Jintai Sealing Technology Co., Ltd. 2024.11.28
Jiangsu Jintai Sealing Technology Co., Ltd. Industry News

The core of 304 steel outer ring graphite spiral wound gasket is made of graphite and metal strips wound alternately. The metal strip generally uses stainless steel 304 or 316 materials, which have good corrosion resistance, high temperature resistance and mechanical strength. Graphite has good sealing performance and chemical stability, especially in high temperature and chemical media, which can effectively prevent leakage.

The outer ring is usually made of stainless steel or other alloy materials, which plays a role in enhancing the overall strength and stability of the gasket. With the support of the outer ring, the gasket can maintain a stable shape during the compression process to avoid deformation or failure under high temperature and high pressure conditions.

Performance characteristics
High temperature resistance: 304 steel outer ring graphite spiral wound gasket can withstand high temperatures up to 1000°C and is suitable for various high temperature environments.
Excellent sealing performance: The spiral winding structure gives the gasket an excellent sealing effect and can effectively prevent fluid leakage.
Corrosion resistance: The combination of 304 stainless steel and graphite makes it have good corrosion resistance to a variety of chemical media.
Strong pressure resistance: The gasket has high compression recovery performance and can maintain good sealing even in high-pressure environments.
Fatigue resistance: The spiral winding design makes the gasket have excellent anti-vibration and anti-fatigue properties, which is suitable for working environments with large vibrations.

Application areas
304 steel outer ring graphite spiral wound gaskets are widely used in petroleum, chemical, electric power, metallurgy and other industries, especially in heat exchangers, pumps, valves, boilers, pipelines and other equipment as sealing elements. Its excellent high temperature resistance, corrosion resistance and pressure resistance make it an ideal choice for ensuring the safe operation of equipment under extreme working conditions.

Specific application areas include:
Petrochemical: used for sealing of oil pipelines and chemical reactors to prevent leakage.
Power industry: used in high temperature and high pressure places such as boilers, heat exchangers, steam pipelines.
Metallurgical industry: used in high temperature environments such as furnace bodies, furnace tubes, cooling systems, etc.
Marine equipment: due to its excellent corrosion resistance, it is also widely used in the sealing of marine equipment.

Installation and maintenance
There are several key points to note when installing 304 steel outer ring graphite spiral wound gaskets:

Make sure the sealing surface is clean and free of debris to avoid poor sealing due to foreign matter.
Use appropriate clamping force. Too much or too little pressure may affect the sealing effect of the gasket.
Check the status of the gasket regularly, especially in high temperature or chemical medium environment, the gasket is prone to aging or damage.