Pump Upgrades

AVI is the leader in pump rebuilding...

AVI is the leader in pump rebuilding, and pump upgrades. with thousands of our modified pumps operating around the world.  We take your old pump and give it performance and efficiency upgrades by Implementing our exclusive OEE Technology.  

Our implementation of OEE Techhnology (Optimal Electrical Efficiency) can modify your existing BWCP to produce more energy, with less friction and have longer service life while helping reduce your operational costs making it a superior value over the competition.

Below are some of the upgrade services we offer.



Motor Characteristics:


  • Change voltage: AVI can modify your existing motor to a higher or lower operating AC voltage all while maintaining, if not exceeding, the standard efficiencies. All the BWCP's we have modified to increase the operating voltage have had a significant extended service life.

  • Change Torque Curve: AVI can improve starting torque where it has been found that the current design is stalling during start up.

  • Terminal Glands: 100% perfect track record. No one else in the industry can say that. Our super safe terminal glands have never failed to operate as designed in service and continue to withstand the test of time without a single failure. Our super safe design will also seal should a catastrophic temperature excursing in the motor cavity occur causing all the plastic to melt the gland will move forward pressing the safety cone into the inner casing, plugging any potential major leak.

  • Motor Windings: Most of our cable is manufactured to exact AVI requirements from USA sources; where specific cable design is not available from the USA, Germany is our alternative source. Our experience and craftsmanship provides our customer with a motor whose coils are formed to perfection, stabilized in the slot to prevent reeding and placed to allow for maximum efficiency all while allowing the proper water cooling flow to pass. We use a minimum of connections which are insulated with the finest irritated XLP available. We boast the most experienced winding team in the industry and provide comprehensive training for the future of this exceptional level of skill.

  • Radial Bearings: AVI can offer a variety of designs to overcome specific problems be it increased load, electrolytic action, high wear, or any other condition that requires specialized consideration.

  • Axial Bearings: A change in boiler operation increase flow rates can cause thrust conditions not considered during the original design or your unit. We can work with your operations and engineering staff to offer new designs that will work in your existing unit and solve the problem.



Pump Characteristics:


  • Impellers: More flow, less flow, higher head capacities, lower NPSH . We can assist your staff in trending for your specific requirements and offer an engineered solution.

  • Overall efficiency: AVI can take your existing pump and tune it to offer every advantage currently available to increase efficiency and reliability.

Boiler Water Circulating Pump motor windings.

AVI's Wet Stators are crafted to exacting specifications.  Our high quality winding cable is American made and our BWCP windings have minimal connections results in eliminating points of failure.  AVI's submersible coils are hand formed by Master Craftsmen creating an optimally efficient stator from 250 hp thru 1,400 hp 50 and 60 cycle 440vac thru 7,300vac.

AVI maintains emergency spare parts for winding many styles of Boiler Water Circulating pumps from 250 hp -1400 hp Hayward Tyler KSB Ingersoll Rand and Flowserve. Our processes and protocols allow for maximum cooling while maintaining the integrity of the coils against reeding cold flow and other detrimental effects . Our winding team is one of the most experienced teams in the industry.  AVI's Super Safe Terminal glands have never failed in service due to workmanship or materials. We can provide new BWCP stator laminations and new BWCP Stator cores. We will repair and refurbish Boiler Water Circulating Pump stators on an emergency basis.


AVI maintains an inventory of Hastelloy winding cans commonly found in General Electric or Westinghouse BWCPs for the power plants that require a dry winding BWCP.

AVI International, Inc - 3240 Winsted Road - Torrington, CT 06790  USA - 800.376.7867

Part of Pleuger Industries and Flacks Group