“NSF/ANSI 61.”Ā NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Impeller wear ring
80 SeriesĀ® Engine Driven
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Figure 2. A simple sine wave with a period of 360Ā° and an amplitude of 1. In single phase power the x-intercepts are 180Ā° from each other. A full period is 360Ā°. 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.
Model 342A Single Stage End Suction
Model 411 Horizontal Split Case
Bowl wear ring
Horizontal Lathe
Schlumberger Pump Assembly
Submersible Turbine Pumps
Computer Numerical Control Machine (CNC) at Nickerson
Well Pump Installation
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Vertical Lathe
Close-Coupled Vertical Turbine
Figure 1. The general arrangement of a three phase waveform.
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
380 Series Vertical Inline Pump with VFD
Nickerson Field Crew
Horizontal Lathe
SF SeriesĀ®
Custom fabrication to a large part
Computer Numerical Control Machine (CNC) at Nickerson
Horizontal Lathe
Vertical Turbine Pumps, Deep Well
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2Ļ/3 radians or 120Ā°. When one phase reaches an x-intercept or node the next phase is only 30Ā° and approximately 5.6 milliseconds from reaching its crest.
