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.
An electric motor is a device that turns electrical energy into motion, usually rotation. It changes electrical energy into mechanical or kinetic (movement) energy. This works using electromagnetism.A loop of wire containing a current is passed through an electromagnet's magnetic field.n electric motor contains a coil of wire (sometimes called a solenoid), that creates a magnetic field when electricity flows through it. This is collectively known as an electromagnet.