Dear team members, as we calculate Mean Time Between Failures (MTBF) for pumps, it is crucial to note that non-functional failures such as suction strainer clogging and driver upsets are not factored into the equation. Our goal is to achieve an MTBF of 60 months for centrifugal pumps. I am interested in learning if this methodology is utilized in other locations.
I believe you are on the right track with your approach to calculating the Mean Time Between Failures (MTBF) of the pump. If you are looking to assess the entire system, which could involve components such as pumps and strainers, it is important to take into account all potential failures within that system.
At my workplace, Y7, the Mean Time Between Failure (MTBF) for pumps is reported monthly. One of the biggest challenges we face is ensuring consistency in our criteria. A crucial step is establishing clear definitions for pump boundaries and ensuring all staff members adhere to the same guidelines. For instance, it's important to determine which components are considered part of a pump at your specific facility. This includes items such as shaft couplings, instrumentation like shaft vibration probes and bearing temperature elements, as well as base plates and gaskets at suction and discharge flanges. Regards, Ali M. Al-Shurafa.
Absolutely, we follow a similar methodology at our facility. However, alongside MTBF, we also consider ancillary factors such as regular maintenance schedules, environmental conditions, and overall usage patterns. While aiming for a higher MTBF is good, we believe in a holistic approach towards preventing failures - and not just calculating the time between them. The 60 months target for centrifugal pumps is quite rigorous but with a synergistic approach that includes proactive oversight, I believe it's indeed achievable!
That's an interesting point about excluding non-functional failures from the MTBF calculation! It seems like focusing on only the mechanical failures really helps in getting a clearer picture of the pump's reliability. I’ve seen some teams in other locations adopt similar methodologies to streamline their maintenance efforts and enhance performance metrics. It could be beneficial for us to share best practices across different teams to see how others approach this and maybe even refine our own strategy!
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Answer: Answer: Non-functional failures are often excluded from MTBF calculations as they are not directly related to the reliability of the pump itself, but rather external factors that can affect its performance.
Answer: Answer: A 60-month MTBF goal indicates a high level of reliability and performance for the centrifugal pumps, ensuring extended periods of operation without significant failures or downtime.
Answer: Answer: Yes, excluding non-functional failures from MTBF calculations is a common practice in many industries to focus on the inherent reliability of the equipment itself rather than external factors that can impact its performance.
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