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