Did the lubricant for the imported Praxair screw compressors run out while it was in use?
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As an aside, the internal structure of imported pumps is truly beautiful (I don’t see many of them). It was last overhauled by the pump; during these recent startups, it was found that there was no lubricating oil left. It disappears right after it’s added – what’s going on?
Is it possible that the oil seal is leaking oil? You can check whether there is oil at the exhaust port!
It doesn’t look like a centrifugal pump at all!
It is a screw compressor; however, it is classified under the centrifugal pump category according to equipment management classifications
The lubricating oil isn’t connected to the working chamber, right?
It’s just a speculation; no structural diagram available
Internal leakage occurs, with fluid leaking into the pump chamber and then being expelled along with the exhaust gas; this is due to poor sealing of the piston rings
There are no piston rings; this is a screw
What is used to seal those two end bearings and the rotor in the pump’s internal cavity?