historical-pump-circa-1940’s Sizes: 150 × 150 / 300 × 221 / 750 × 553 / 480 × 300 / 600 × 300 / 950 × 700 Gallery Vertical Lathe Schlumberger Pump Assembly 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. 380 Series Vertical Inline Pump with VFD Utah Lake Cascade Pump Gorman-Rupp SF Series® Submersible Solids-handling Pump Custom fabrication to a large part Frame-mount Centrifugal Pumps Model 342A Single Stage End Suction Horizontal Lathe CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools. Horizontal Lathe Bowl wear ring Impeller wear ring Well Pump Installation Impeller wear ring National Pump Vertical Turbine Pumps, API 610 Photo courtesy of On the slopes 80 Series® Engine Driven Bowl wear ring Super T Series® Engine Driven Computer Numerical Control Machine (CNC) at Nickerson Submersible Turbine Pumps “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. Custom shapes cut from raw materials. SF Series® Ultra V Series® and UltraMate® Computer Numerical Control Machine (CNC) at Nickerson Vertical Turbine Pumps, Deep Well Close-Coupled Vertical Turbine Parley’s Water Treatment Plant. Photo credit SLCdocs.com Figure 1. The general arrangement of a three phase waveform. 3800 Series, Single Stage End Suction Utah Lake Cascade Pump Vertical Lathe Model 411 Horizontal Split Case Horizontal Lathe Machinist at Nickerson Company running a state-of-the-art CNC machine. Nickerson Field Crew Image Info Dimensions 950 × 700 Name historical-pump-circa-1940s.jpg Mime Type image/jpeg Type JPG Size 97.65 KB