Vertical shaft submersible pump
A vertical shaft submersible pump is a single-stage submersible pump. The vertical, radially split, seal-less pump set is fitted with a radial impeller or channel impeller.
Vertical shaft submersible pumps are used for a great diversity of applications, ranging from automatic drainage of water from pits (e.g. waste water) to tank-installed versions transporting condensate, heat transfer fluids or chemically aggressive fluids. See Figs. 1, 2 Vertical shaft submersible pump

Fig. 1 Vertical shaft submersible pump: Waste water pump with level control; pump and motor rigidly connected by support column
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Fig. 2 Vertical shaft submersible pump: Vertical shaft submersible pump for the chemical industry with discharge line extended to the mounting level