“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Nickerson Field Crew
Computer Numerical Control Machine (CNC) at Nickerson
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Bowl wear ring
Horizontal Lathe
Computer Numerical Control Machine (CNC) at Nickerson
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Schlumberger Pump Assembly
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
3800 Series, Single Stage End Suction
Ultra V Series® and UltraMate®
380 Series Vertical Inline Pump with VFD
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.
Impeller wear ring
SF Series®
Utah Lake Cascade Pump
Figure 1. The general arrangement of a three phase waveform.
Horizontal Lathe
Well Pump Installation
Super T Series® Engine Driven
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.
