“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Bowl wear ring
National Pump Vertical Turbine Pumps, API 610
Horizontal Lathe
Model 411 Horizontal Split Case
Frame-mount Centrifugal Pumps
Machinist at Nickerson Company running a state-of-the-art CNC machine.
380 Series Vertical Inline Pump with VFD
Super T Series® Engine Driven
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Impeller wear ring
Computer Numerical Control Machine (CNC) at Nickerson
Horizontal Lathe
Close-Coupled Vertical Turbine
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Horizontal Lathe
Utah Lake Cascade Pump
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.
80 Series® Engine Driven
Submersible Turbine Pumps
SF Series®
Figure 1. The general arrangement of a three phase waveform.
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.
Computer Numerical Control Machine (CNC) at Nickerson
