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