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JJPellin, Thanks for your reply. regarding your first part, I will answer what I am sure about at the moment. The impellers are aligned and there is a balancing drum. The bearing is forced lubricated. not sure about a spring mechanism I need to double check. normal thrust is toward the NDE (why...

Dears, We have some issues with a multi-stage centrifugal pump. First of, The axial thrust is almost 0.2 mm. when the pump is off, the axial position does not read zero but it reads 0.2 mm, once the pump starts it reads 0.35 to 0.4 mm which is at the alarm. now we know the actual distance the...

have you ever got the line of plan 23 chocked? Plan 21M is 32 basically. 21M is taking the flush from the common discharge.

Dears, we are facing frequent seal failures in our hot service pumps. Their plans are 53B, 21 we observed coking in the barrier fluid so we have replaced it with another oil with higher flash point. with regards to plan 21, we observed chocking in the lines even when the cooler is isolated. my...