The joint ring K 72331 is a precision sealing element designed for use with nipple K 72320 in the Sulzer ZV40/48 engine’s lubrication or auxiliary piping systems. Its primary role is to ensure a tight, leak-free interface between connected components, maintaining pressure integrity and preventing fluid loss. Engineered to withstand exposure to lubricating oil, temperature fluctuations, and vibration, this ring provides consistent sealing performance over extended service intervals. Manufactured from high-quality, application-specific materials, it compensates for minor surface irregularities and ensures uniform contact pressure. By safeguarding the connection points within the system, the K 72331 joint ring contributes to operational reliability, reduced maintenance, and efficient fluid handling.