UL Field Inspections. Yesterday we were greeted at the front door by our UL Inspector for an unannounced field inspectionâ¦surprise! At another facility there might be a cry for alarm, but at Coast Label Company there was no mad scramble, no rush to hide this, or go find that. We just sat him down and asked what he was checking today.
Jet pumps create suction in a rather novel way. The pump is powered by an electric motor that drives an impeller, or centrifugal pump. The impeller moves water, called drive water, from the well through a narrow orifice, or jet, mounted in the housing in front of the impeller.
How does a submersible pump work? Quick Answer. A submersible pump uses a motor in a watertight housing to drive a pumping mechanism that pushes a column of liquid to move to another location. The sealed housing allows the pump and motor to be placed inside the fluid it pumps without damaging the electric motor. Continue Reading.