Gorman-Rupp SF Series® Submersible Solids-handling Pump
Impeller wear ring
Utah Lake Cascade Pump
Utah Lake Cascade Pump
Vertical Turbine Pumps, Deep Well
Bowl wear ring
380 Series Vertical Inline Pump with VFD
Model 342A Single Stage End Suction
Schlumberger Pump Assembly
Figure 1. The general arrangement of a three phase waveform.
Computer Numerical Control Machine (CNC) at Nickerson
80 Series® Engine Driven
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Model 411 Horizontal Split Case
Super T Series® Engine Driven
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Well Pump Installation
Ultra V Series® and UltraMate®
National Pump Vertical Turbine Pumps, API 610
Impeller wear ring
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Bowl wear ring
Horizontal Lathe
Vertical Lathe
Submersible Turbine Pumps
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2π/3 radians or 120°. When one phase reaches an x-intercept or node the next phase is only 30° and approximately 5.6 milliseconds from reaching its crest.
Nickerson Field Crew
Horizontal Lathe
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Figure 2. A simple sine wave with a period of 360° and an amplitude of 1. In single phase power the x-intercepts are 180° from each other. A full period is 360°. A single phase motor has a crest approximately every 16.5 milliseconds giving the motors a tendency to vibrate more, which may contribute to a shortened bearing life.
3800 Series, Single Stage End Suction
Frame-mount Centrifugal Pumps
Computer Numerical Control Machine (CNC) at Nickerson
