The nomenclature below describes the standard pump frame size, capacity, pressure capability, drive shaft arrangement, application and the serial number. Other options are available. Most common are listed below. Example: The pump series described above is a large rotary pump with rated capacity of 266 gallons per 100 revolutions. The pump is for high pressure application with a bottom drive shaft, pumping an extremely abrasive material. This pump also features: LARS.D.EN.F Cartridge Seals, Regular Drain Plugs, ANSI Standard Steel Transition Fittings, AGI 600 Housing Segments, NBR Orings, AR500 Wear Plates, NBR 70 Coated 4 Wing Helix Lobes. The pump serial number is 123456.