“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Horizontal Lathe
Custom shapes cut from raw materials.
Impeller wear ring
Computer Numerical Control Machine (CNC) at Nickerson
Horizontal Lathe
Model 342A Single Stage End Suction
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.
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Submersible Turbine Pumps
Machinist at Nickerson Company running a state-of-the-art CNC machine.
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.
Impeller wear ring
National Pump Vertical Turbine Pumps, API 610
Custom fabrication to a large part
Frame-mount Centrifugal Pumps
Nickerson Field Crew
Figure 1. The general arrangement of a three phase waveform.
