Fire-Protection-pumps Sizes: 150 × 150 / 300 × 188 / 750 × 469 / 750 × 469 / 1,536 × 960 / 480 × 300 / 600 × 300 / 1,920 × 1,200 Gallery 3800 Series, Single Stage End Suction 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. Photo courtesy of On the slopes Machinist at Nickerson Company running a state-of-the-art CNC machine. CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools. Custom fabrication to a large part Impeller wear ring Gorman-Rupp SF Series® Submersible Solids-handling Pump Vertical Lathe Bowl wear ring Parley’s Water Treatment Plant. Photo credit SLCdocs.com Model 342A Single Stage End Suction Computer Numerical Control Machine (CNC) at Nickerson 80 Series® Engine Driven Super T Series® Engine Driven Figure 1. The general arrangement of a three phase waveform. Nickerson Field Crew SF Series® Bowl wear ring Horizontal Lathe Custom shapes cut from raw materials. 380 Series Vertical Inline Pump with VFD Model 411 Horizontal Split Case Frame-mount Centrifugal Pumps Ultra V Series® and UltraMate® National Pump Vertical Turbine Pumps, API 610 Submersible Turbine Pumps Computer Numerical Control Machine (CNC) at Nickerson 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. Horizontal Lathe Well Pump Installation Impeller wear ring Utah Lake Cascade Pump Horizontal Lathe Vertical Lathe “NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017. Vertical Turbine Pumps, Deep Well Schlumberger Pump Assembly Utah Lake Cascade Pump Close-Coupled Vertical Turbine Image Info Dimensions 1,920 × 1,200 Name Fire-Protection-pumps.jpg Mime Type image/jpeg Type JPG Size 249.65 KB