NOV’s Mission Magnum has been the most popular centrifugal pump in the drilling industry since the 1970’s because of its proven reliability, durability, and economical structure.​The Magnum has an open impeller design that contains wide-tipped vanes and a more tangential circumference of the suction allowing the pump to create a smoother flow pattern when handling abrasive fluids. THe Magnum is available in Magnachrome, hard iron, stainless steel, and aluminum bronze fluid ends. The pumps can be unitized with electric motors, diesel engines, and hydraulic motors (horizontal, vertical, or close-coupled configuration).

Typical Applications:

  • Barite, ferric oxide, and mineral oil
  • Base drilling muds
  • Glass fibers
  • Sugar processing
  • Ash or coal conveyers
  • Cement
  • Mine de-watering
  • Lime slurries
  • Kaolin clay
  • Crystalline forms


  • Sizes from 3x2x13 to 10x8x14
  • Flow rates from a few gallons per minute of to 2,600 GPM
  • Head pressure up to 550 feet
  • Best utilized for applications requiring up to 200 HP


  • Versatile stuffing box
  • One piece casing
  • Casing gasket receded for protection
  • Back vanes reduce collection of solids at stuffing box
  • Long-life, no-adjustment mechanical seal available for near zero leakage
  • Replaceable shaft sleeve
  • Lip seals for maximum bearing protection (Labyrinth seals optional)
  • Duplex angular contact bearings
  • Thicker, stronger concentric casings
  • Full pipe diameter entrance for minimum turbulence and maximum efficiency
  • Single row roller bearings for increasing bearing life
  • Easily accessible front access drain
  • Reduced high bearing loads

When floor space is at a premium and performance is critical, the Vertical Magnum provides the solution. The Vertical includes virtually all of the features of the Magnum I. In addition, the versatile and unique design of the Vertical can be utilized in diverse applications. In a wet pit environment, the Vertical requires no bearings or sealing device below the waterline. Use of a vortex impeller allows the passage of any solid that can enter the suction inlet and minimizes the particle degradation. Concentric casing design minimizes shaft cyclical deflection and allows excellent slurry handling.

Common applications include:

    • Mud pumping – offshore/onshore
    • Solids control
    • Dredging
    • Leveling or Rig Platform (ballast)