Mechanical advantages: balanced axial load

The special design of our motorised pumps eliminates the main mechanical problem faced by all submersible pumps:  axial load.

The axial load created when the pressure of the fluid acts on rotors of the pumps is transmitted along the pump shafts to the bearings, shortening the useful life of electric submersible pumps or restricting the depth at which pumps powered by long mechanical shafts can be installed.

ADES pumping equipment does not have this problem, since the axial load is balanced out by another load in the opposite direction created by the pressure of the hydraulic fluid, thus maintaining balanced loads in any operating conditions. This special feature allows ADES to design and manufacture long-lasting motorised pumps (20,000 hours) that require no maintenance and can be installed at depths of up to 350 metres. On ADES systems, the hydraulic fluid acts not only as a means of transmitting power, but also as a lubricant and a coolant.

Furthermore, the option to perform gradual start and stop phases reduces hammering, extending the useful life of the system.

Diagram showing an example of a system for pumping from a free-flowing watercourse