Cornell Immersible Pumps

The immersible motor can operate in flooded conditions, submerged up to 30 feet, for up to a two-week period. The proven concept combines safety of a submersible with the ease of maintenance of an off-the shelf motor. The basic design incorporates a premium-efficiency, inverter-duty TECB (totally enclosed, blower-cooled) motor. If the motor becomes submerged, the blower shuts down without affecting the main motor. While submerged, the media cools the motor just like a true submersible. A special conduit box is used to prevent water leakage into the motor. The motor is designed to prevent infiltration of water along the shaft and into the motor using a patented hydro-seal design.

Cornell Immersible Pumps


  • Available on a range of pumps with discharge sizes from 4″ to 30″
  • Withstands up to 30′ subergence
  • Can be submerged up to two weeks
  • Available on N, NN and NH series pumps

Features and Benefits:

  • Ease of maintenance and serviceability
  • No level controls, monitors, recirculating pump or piping needed
  • Excellent efficiencies
  • No cooling jacket necessary
  • Designed to run submerged for limited time periods
  • Lower thrust due to bearing frame which means longer bearing life
  • The shaft penetrates the bottom only and is sealed using a triple redundant sealing system