General product information Vertical immersible pumps
Vertical pump structure:
Construction versions of Vertical pump
An arrangement: Lubricated by means of the pumped fluid. The pumped fluid lubricates all the bearing bushes; the liquid must be clean, otherwise, solids could clog the small pipes for intermediate bearing bush lubrication.
B arrangement: Lubricated by external lubricating source. A clean external source, clean liquid or grease, lubricates all the bearing bushes. Used when the liquid is dirty, sticky or with suspended solids. This arrangement allows the pump to work without liquid in the sump or with suction extension. The external fluid is pumped together with the main fluid.
E arrangement: Lubricated by fluid into the pipe column. Used when the liquid is aggressive, dirty, sticky, or with suspended solids; a mechanical seal is placed between the shaft and the casing cover to fill the pipe column. All the bearing bushes are lubricated by flushing fluid.
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