In the chemical industry, fabric expansion joints are utilized in various applications to accommodate movements, vibrations, and thermal expansion in piping systems while also ensuring chemical resistance and durability. Here are some common applications of fabric expansion joints in the chemical industry:

1. Process Piping:

   • Fabric expansion joints are installed in process piping systems to absorb movements resulting from thermal cycling, process fluctuations, and equipment vibrations. They provide flexibility to the piping system while maintaining a seal against corrosive chemicals and high temperatures.

2. Reactors and Vessels:

   • Fabric expansion joints are used in ducting systems connected to reactors, vessels, and tanks to accommodate movements caused by thermal expansion and contraction. They help prevent stress on the equipment and piping connections, reducing the risk of leaks or failures.

3. Corrosive Gas Handling:

   • Fabric expansion joints are employed in ducting systems handling corrosive gases, such as hydrogen chloride (HCl), sulfur dioxide (SO2), chlorine (Cl2), and other chemical byproducts. The joints provide resistance to chemical attack and prevent leaks in critical areas of the system.

4. Exhaust and Emission Control:

   • Fabric expansion joints are installed in exhaust and emission control systems, including scrubbers, precipitators, and stacks, to accommodate movements and vibrations while containing hazardous chemicals and pollutants. They provide flexibility and durability in harsh chemical environments.

5. Acid Plants:

   • Fabric expansion joints are used in ducting systems of acid plants, including sulfuric acid (H2SO4) production facilities, to handle corrosive acids and high temperatures. They absorb movements and vibrations while maintaining system integrity and preventing leaks.

6. Alkali Handling:

   • Fabric expansion joints are employed in ducting systems handling alkaline solutions, such as sodium hydroxide (NaOH) or potassium hydroxide (KOH), to accommodate movements and prevent stress on piping connections. They provide chemical resistance and flexibility in alkali-rich environments.

7. Tank Farm and Storage Facilities:

   • Fabric expansion joints are installed in piping systems connected to storage tanks, tank farms, and chemical storage facilities to absorb movements caused by temperature changes and fluid level fluctuations. They help prevent stress on piping connections and extend the service life of the equipment.

8. Mixing and Blending Systems:

   • Fabric expansion joints are used in ducting systems of mixing and blending units to accommodate movements and vibrations during the mixing process. They provide flexibility and resistance to chemical exposure, ensuring reliable operation of the equipment.

These are some of the key applications of fabric expansion joints in the chemical industry, where they play a crucial role in maintaining the integrity, safety, and efficiency of piping systems handling corrosive chemicals, high temperatures, and demanding operating conditions.