Seals are very important devices to prevent leakage of fluid. In rotary mechanisms, seals of different types are used as sealing devices. Mechanical seals are employed when they operate under critically severe conditions. In this paper, failure modes ...
Seals are very important devices to prevent leakage of fluid. In rotary mechanisms, seals of different types are used as sealing devices. Mechanical seals are employed when they operate under critically severe conditions. In this paper, failure modes and types of pumps installed in commercial ships and problems of rnecharu, al seal adopted are investigated to improve pumping performances and sealing reliabilities. Life cycle of mechanical seals used for fuel oil supply pumps are very short because they used heavy fuel oil which contains very high foreign materials. Leakage in mechanical seal is caused mainly by failure of sealing face.