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.
National Pump Vertical Turbine Pumps, API 610
80 Series® Engine Driven
Bowl wear ring
Custom fabrication to a large part
Computer Numerical Control Machine (CNC) at Nickerson
Ultra V Series® and UltraMate®
Impeller wear ring
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.
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Model 411 Horizontal Split Case
3800 Series, Single Stage End Suction
Custom shapes cut from raw materials.
Model 342A Single Stage End Suction
Schlumberger Pump Assembly
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Super T Series® Engine Driven
Nickerson Field Crew
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Horizontal Lathe
Horizontal Lathe
Utah Lake Cascade Pump
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
