Safe use of ultra-high-pressure waterjetting

Experts share their views on the safe use of ultra-high-pressure water-jetting (UHP WJ). UHP WJ systems consist of a high-pressure pump, hoses and various tools. The tools used in field surface preparation consist of a control valve, lance and nozzle assembly. The main safety hazards associated with UHP WJ are injection and fatigue. Fatigue is another problem associated with water-jetting, which results from the back thrust of the equipment. Proper personal protective equipment (PPE) should be worn when using UHP WJ equipment. This includes head, eye, body, foot, hand, hearing and respiratory protection. The head protection should include a full face shield and/or eye protection such as goggles for visibility.