GR-CMYK-copy Sizes: 150 × 150 / 300 × 251 / 480 × 300 / 600 × 300 / 675 × 564 Gallery Bowl wear ring Bowl wear ring National Pump Vertical Turbine Pumps, API 610 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. Gorman-Rupp SF Series® Submersible Solids-handling Pump Horizontal Lathe Vertical Turbine Pumps, Deep Well Utah Lake Cascade Pump “NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017. 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. Vertical Lathe Utah Lake Cascade Pump Computer Numerical Control Machine (CNC) at Nickerson Parley’s Water Treatment Plant. Photo credit SLCdocs.com Impeller wear ring Schlumberger Pump Assembly Vertical Lathe Super T Series® Engine Driven Well Pump Installation Frame-mount Centrifugal Pumps Custom fabrication to a large part Photo courtesy of On the slopes 380 Series Vertical Inline Pump with VFD CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools. Nickerson Field Crew Ultra V Series® and UltraMate® Submersible Turbine Pumps Model 411 Horizontal Split Case Custom shapes cut from raw materials. Horizontal Lathe Computer Numerical Control Machine (CNC) at Nickerson 80 Series® Engine Driven Figure 1. The general arrangement of a three phase waveform. Horizontal Lathe Model 342A Single Stage End Suction Close-Coupled Vertical Turbine Machinist at Nickerson Company running a state-of-the-art CNC machine. SF Series® 3800 Series, Single Stage End Suction Image Info Dimensions 675 × 564 Name GR-CMYK-copy.png Mime Type image/png Type PNG Size 23.90 KB