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