For the pumping unit, its hitherto abrasion-prone casing and casing plate are now made of abrasion-resistant material. Mechanical seal protects the shaft from the ingress of muddy water to make the bearings last longer. Hitherto divided into a clean water type and a muddy water type, the EFP is now more durable than before and usable in both applications.

The impeller has been reshaped from its current three-vane type into a five-vane one to increase the head and discharge. As a result, for a discharge of 200 L/min, the head used to be 16 m and can now rise to nearly 19 m. (Maximum head has gone up by 19% and maximum discharge by 42% from our earlier HFP models.) Wear that is increased by the higher performance is combatted by using wear-resistant material.

The flexible hose shaft assembly is of a simple hexagonal joint system that facilitates detachment and reattachment. The pump, on the other hand, is equipped with an oil-sealed holder joint to prevent reverse water flow into the shaft. The result is longer lives of the shaft and the bearings in the pump.

A shaft break by bending is prevented by using an outliner in the middle of the flexible hose shaft assembly.

Strainers in older models used to be of SS400. Corrosion-prone, they used to be a cause of damage. The EFP and its successors, however, are made of stainless steel, resulting in considerably higher corrosion resistance. With a changed opening area, the new model has risen in suction rate.

Discharge pipes, which used to be of glass-fiber-reinforced nylon, are now of aluminum. As a result, they are easier to sort out at disposal.

The frame structure of the HVE - HS engine can be stacked and can be stored compactly in a warehouse.