NSF-ANSI-61-map Sizes: 150 × 150 / 300 × 243 / 750 × 607 / 480 × 300 / 600 × 300 / 828 × 671 Gallery Impeller wear ring National Pump Vertical Turbine Pumps, API 610 Custom shapes cut from raw materials. Horizontal Lathe 80 Series® Engine Driven Bowl wear ring Nickerson Field Crew Submersible Turbine Pumps 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. Horizontal Lathe Ultra V Series® and UltraMate® Horizontal Lathe Machinist at Nickerson Company running a state-of-the-art CNC machine. Close-Coupled Vertical Turbine Computer Numerical Control Machine (CNC) at Nickerson Bowl wear ring Gorman-Rupp SF Series® Submersible Solids-handling Pump Super T Series® Engine Driven Impeller wear ring 3800 Series, Single Stage End Suction Vertical Turbine Pumps, Deep Well 380 Series Vertical Inline Pump with VFD Parley’s Water Treatment Plant. Photo credit SLCdocs.com Computer Numerical Control Machine (CNC) at Nickerson SF Series® Photo courtesy of On the slopes Schlumberger Pump Assembly Vertical Lathe Model 342A Single Stage End Suction Utah Lake Cascade Pump Model 411 Horizontal Split Case Custom fabrication to a large part Frame-mount Centrifugal Pumps Well Pump Installation CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools. Vertical Lathe Utah Lake Cascade Pump 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. Figure 1. The general arrangement of a three phase waveform. Image Info Dimensions 828 × 671 Name NSF-ANSI-61-map.jpg Mime Type image/jpeg Type JPG Size 79.46 KB