Submersible Pump

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Also called a submerged turbine pump (STP).

A pumping unit located inside a storage tank. Because the pump is positioned near the bottom of the tank, below the liquid level, it is normally submerged in the fuel; thus, a submersible pump.

Installations in which submersible pumps are used to transfer gasoline from the storage tanks to pump island dispensers are usually referred to as remote systems.

See also Remote pumping system and Pressurized system.