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What is a Water Jetting Reaction Force?

Forces occur when there are a set of objects interacting with each other. These forces happen in pairs – when one object applies a force on another, it also experiences a force in return. This is known as Newton’s Third Law of Motion.

Newton’s Third Law of Motion

When one object applies a force onto another, the second body will exert a force as a counteraction. Research and experience have shown that pressures over 800 bar are capable of breaking up concrete.


Reaction Forces in hydrodemolition


What is a Hydrodemolition Reaction Force?

In basic terms, when the hydrodemolition water jetting gun is activated, the operator will feel as though the water is pushing them backwards.

As you can see from the image above, the action force comes from the water that is being pushed out of the nozzle. The reaction force is the water pushing back on the nozzle to create a counteracting force as a result of the surface blocking the waters path.

Why are Hydrodemolition Reaction Forces Important?

When you work with high-pressure equipment such as Hydrodemolition tools, it is important that you understand the reaction forces you will encounter. Preparation and understanding of equipment is key to ensuring you maintain a high level of health and safety.

Here at Hydroblast, we have a range of different pumps and equipment capable of different levels of pressure, meaning we can accomplish many different tasks. The speed of removal will be determined by the pressure and flow that is being used. The more pressure is applied, the quicker the work can be completed.

Our staff at Hydroblast are all fully qualified to use all Hydrodemoliton equipment. If you are considering using a piece of our equipment but are unsure of how to actually use it or of the reaction forces which it may cause, then speak to one of our members of staff. At Hydroblast we are more than happy to offer training on all of our equipment before use or if you’d prefer us to complete the task in hand then we can do that also. For more information on equipment use and health and safety then please contact Hydroblast today.