RadMax Pump

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RadMax® Pump

The RadMax positive-displacement pump pairs the high volume capacity of a positive-displacement pump with the simplicity and cost advantages of a centrifugal pump. 

Because of its unique design, a RadMax pump is able to utilize the volumetric displacement energy of the fluid and the kinetic energy of the vane action. This results in an extraordinarily energy efficient pump.  Additionally, since the RadMax pump’s operation and construction are similar to a centrifugal pump, its cost to manufacture and maintain are closer to that of a centrifugal pump than a positive-displacement pump. Together, this makes a RadMax pump a highly efficient and cost effective solution for many pumping applications.

The RadMax pump is characterized by:

  • Multiple smooth pumping actions per rotation creating high output volume
  • High efficiency & output for its size
  • Better handling of gas-entrained liquids
  • Self-priming & auto re-priming
  • Operation as a boost or lift pump
  • Operation as a metering pump
  • Scalability from small to very large devices

Additionally, the pump cycle cam has the potential to be combined with a RadMax prime-mover cycle cam to form one compact, combined-cycle, pumping unit.

RadMax Pump Cycle
The RadMax pump design is a combination of four distinct sections:  two complete suction and discharge cycles on each cam in the standard two cam configuration. Different porting options into and between the sections allow for the capability to have separate pumping actions and flow rates in one device or pump several different streams at once.

RadMax Pump Cycle

RadMax Pump Operation
In the RadMax positive displacement pump, the vanes move axially, driven by the rotor face, and the liquid is pumped when the adjacent vanes extend or retract. During rotor revolution, the ends of the vanes follow a path that approximates a sinusoidal wave. This path is uniquely designed so that during each revolution of the rotor, the chambers’ volumes move the fluid out of the pump.

This process is repeated in each of the pump sections, in each chamber, and on each side of the rotor. The rotor spins continuously in one direction rather than violently changing directions as with pistons in a reciprocating device. Because the upper and lower faces of the rotor are 90-degrees out of phase, the RadMax pump is always balanced and exhibits minimal vibration.

Because of its efficient, high-volume output, the RadMax positive-displacement pump is well suited for fire protection; water and flood control; irrigation; marine; water treatment; oil and gas industry down hole and subsea; industrial processes; heavy industry and construction; and portable pump applications.

Download a RadMax pump brochure here.