WALD helical gear pumps are positive displacement pumps designed for handling liquids with low to high viscosity. They find applications across a wide range of industries including sugar, automotive, paper, livestock, paints, lubricants, and fuels, for tasks such as tank or tanker discharge, liquid injection, or transfer.

The helical design ensures greater overlap of successive discharges between the teeth, resulting in a more stable flow at the discharge. Additionally, this design allows for the implementation of a small number of large teeth, increasing capacity without disrupting flow stability.