O-Ring seals are widely used in BSP fittings to create a tight seal between two connected components. These seals are made from rubber or other elastomeric materials and are designed to prevent leaks and ensure a secure connection. O-Ring seals come in various sizes and materials to suit different applications and environments.

When choosing O-Ring seals for BSP fittings, it is important to consider factors such as the material compatibility, temperature resistance, and pressure rating. It is also essential to ensure that the O-Ring seal is the correct size for the fitting to prevent any gaps or leakage. Proper installation and maintenance of O-Ring seals are crucial to ensure their effectiveness and longevity.