What is the purpose of gaskets in low pressure joints?

The purpose of gaskets in low pressure joints is primarily to provide sealing and prevent leaks. Gaskets serve as a critical barrier that fills the space between two surfaces, ensuring a tight fit that prevents the escape of fluids or gases. This sealing function is essential in maintaining system pressure, preventing contamination, and ensuring operational efficiency.

When properly placed, gaskets can also accommodate minor imperfections or misalignments in joint surfaces, which contributes to their effectiveness in achieving a leak-proof seal. This capability is vital, especially in applications where low pressure systems are involved, as even minor leaks can lead to performance issues or system failures.

While gaskets may also provide some level of chemical resistance and contribute to the overall integrity of a joint, their primary, most important role is the sealing function to control leaks. Therefore, the correct answer emphasizes the gaskets’ fundamental purpose in low pressure applications.