The pump type EHT a single stage, Axially split, Axial flow pump and is also known as a "elbow pump" at Rodelta. This design make use of the siphon principle saving energy and minimize valves in system. The pumps are used where low heads and high capacities are needed, mostly to bring polder water over a dike or dam.
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Features: EHT (elbow pump)
Pumpcasing, suction and discharge
The pump casing and discharge are axial split type and together with suction pipe semi installed in the concrete.
Impeller & shaft
The impeller is axial (propeller) type mounted to the horizontal pump shaft.
Thrust & radial bearing assembly
The axial thrust bearing assembly provided with radial roller and ball or spherical thrust bearings. The radial pump bearing is lubricated by the pump liquid.
Push here for explanation of the use of a EHT pump for irrigation and drainage.