Sehra polder pumps are particularly suitable for lifting water from canals and river beds, dam sites, disposal of waste water.
The construction of the pump is of pump below, and motor above, type and suction inlet is at the bottom, so that water is pumped from the lowest level. The pump is driven by water filled submersible electric motor, squirrel cage induction type. Water, which acts as a lubricant in. the motor and keep it cool. The motor is protected against the contamination from surrounding water by mechanical seal. All parts are made from specially selected material to suit high abrasion and corrosion.
The pump can be installed in vertical, horizontal or inclined position. It is portable pump easily shifted to alternative site for reinstallation and withdrawal of the unit as well as replacement of normal wearing parts on site with minimum labour.
Sehra polder pump is one or two stage, available in all material except that soft metal. such as lead or metal so hard as not to be readily machinable.