“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Bowl wear ring
Close-Coupled Vertical Turbine
Nickerson Field Crew
Model 411 Horizontal Split Case
Utah Lake Cascade Pump
Super T Series® Engine Driven
Well Pump Installation
National Pump Vertical Turbine Pumps, API 610
Frame-mount Centrifugal Pumps
SF Series®
Horizontal Lathe
Vertical Lathe
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Computer Numerical Control Machine (CNC) at Nickerson
Submersible Turbine Pumps
Utah Lake Cascade Pump
3800 Series, Single Stage End Suction
Horizontal Lathe
Horizontal Lathe
Figure 1. The general arrangement of a three phase waveform.
Model 342A Single Stage End Suction
Impeller wear ring
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Vertical Lathe
Gorman-Rupp SF Series® Submersible Solids-handling 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.
Bowl wear ring
Vertical Turbine Pumps, Deep Well
Ultra V Series® and UltraMate®
Custom shapes cut from raw materials.
Computer Numerical Control Machine (CNC) at Nickerson
Impeller wear ring
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.
