Centrifugal multistage pump

A low vibration, high frequency and low decibel pump using between 10 volts and 60 volts DC comprising:

• a. a pump body comprising a longitudinal axis, an inlet for receiving a fluid from a first location and an outlet for discharging a pressurized fluid to a second location;
• b. a low decibel hydraulic assembly disposed within the pump body and adapted to pressurize the fluid to form the pressurized fluid, wherein the hydraulic assembly comprises:
• i. a first diffuser comprising a first impeller;
• and
• ii. a second diffuser comprising a second impeller, wherein the pressurized fluid flows centrifugally from the first diffuser to the second diffuser and the impellers impart a high frequency to the pump;
• c. an induction motor operably connected to the first impeller and the second impeller, wherein the induction motor imparts a low vibration to the pump;
• d. a first circuit board inverter disposed within the pump body;
• e. a microcontroller disposed on the first circuit board inverter, wherein the microcontroller comprises an operating system with memory and is adapted to control the induction motor;
• f. a pressure transducer disposed within the pump body;
• g. a heat sink adjacent the first circuit board inverter adapted for removing heat from the first circuit board inverter and transferring it to the pressurized fluid;
• h. a control panel operably connected to the first circuit board inverter and the microcontroller;
• i. a mounting system adapted for rotation of the pump body around the longitudinal axis;
• and
• j. software imbedded within the memory comprising:
• i. protection features adapted for emergency shutoff;
• ii. monitoring features adapted for monitoring pressure, temperature and power levels;
• and
• iii. control features adapted for control of motor speed, start and stop of motor.