How do Wettable Powders (WP) affect pumps and nozzles?

How do Wettable Powders (WP) affect pumps and nozzles?

• A. Abrasive to pumps and nozzles; cause equipment wear.
• B. Lubricate pumps and nozzles.
• C. Have no effect on equipment.
• D. Protect nozzles from wear.

Answer: (A)

Wettable powders are solid particles suspended in water for spraying. As these particles move through the pump and pass out of the nozzle, they act as abrasives against metal surfaces. This abrasive action wears pump components—like seals, plungers, and cylinders—and erodes nozzle orifices, leading to reduced spray performance, leaks, and clogged or irregular spray patterns. They are not lubricants, so they don’t reduce wear or protect equipment. In short, the abrasive nature of the powder causes wear on pumps and nozzles, which is why this option is the best choice. Keeping filters clean and flushing lines after application helps minimize these effects.

Wettable powders are solid particles suspended in water for spraying. As these particles move through the pump and pass out of the nozzle, they act as abrasives against metal surfaces. This abrasive action wears pump components—like seals, plungers, and cylinders—and erodes nozzle orifices, leading to reduced spray performance, leaks, and clogged or irregular spray patterns. They are not lubricants, so they don’t reduce wear or protect equipment. In short, the abrasive nature of the powder causes wear on pumps and nozzles, which is why this option is the best choice. Keeping filters clean and flushing lines after application helps minimize these effects.