| Turbine Drive - technology serving irrigation A wide range of flows - from 3 to 130 mc/hr - can be covered thanks to the three interchangeable aluminium turbines. The cast aluminium turbine body is made up of a straight square pipe carrying the main flow of water, and an impeller seat detour with low friction loss. The waterproof by-pass means very precise speed control using only as much pressure as is necessary for the power required. The speed compensation system keeps the hose winding in at a steady level via a "flap" system, independantly of the by-pass. The impeller is made in synthetic material with a special profile and varying height. This ensures high torque across a wide range of flows. These turbines can cope with some dirty water holding a small percentage of solid elements. |