HALF stands for High Abrasive Loaded Fluids and means fluids with high abrasion. Abrasive fluids cause increased wear in the fluid system as surfaces erode due to physical interactions. The erosion caused by the simple flow over a surface or by the abrasive particles. These, in turn, disrupt the interaction of internal components in a pump. Abrasive fluids can be, for example, calcium carbonate in the paper industry or high-pressure cleaning with abrasive fluids.