Seat Ring Valves Failure: The Causes and Impacts on The Cargo Oil Pump Performance on MT. Kirana Nawa
Keywords:
Discharging process, Cargo oil pump, Seat ring valveAbstract
Cargo discharging is one of the important activities in ship operations. MT. Kirana Nawa experienced a delay during cargo discharging in Batangas, Philippines, on 5 October 2023. Normally, the discharging process would only take one day, but at that time, it took two days to complete. This delay was caused by damaged seat ring valves. This study aimed to identify the factors causing the seat ring valve failure, their impact on the performance of the cargo oil pump, and the role of the ship’s crew in maintaining the seat ring valve to ensure that the cargo oil pump can operate optimally during the discharging process. The research used a qualitative method, in which triangulation techniques were used to obtain the data. The collected data were then analyzed using the Fishbone diagram. The study revealed the main factor causing seat ring valve failure on MT. Kirana Nawa was the over-running hours of the seat ring valves due to the lack of usage records. It then impacted the cargo oil pump performance, which became not optimal, leaving residual cargo in the ship’s tank and causing delays in the discharging process. Thus, the ship’s crew needs to ensure that cargo oil pump performance is optimal by keeping updated records of the seat ring valve’s usage and familiarizing the crew with the correct valve operation according to the manual.
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