The main safety technical problems of high-pressure water jet cutting is to prevent high-pressure water jet and splashing water droplets impact, noise and electric shock.
1, Noise and prevention
When the high-pressure water jet machining, water jet flow rate of up to 100 ~ 600m/s, which will produce a lot of noise in the air.
2, Hazards and prevention of high-pressure water jet on the human body
High pressure water jet has great impact, direct injection into the human body will cause great harm. Even if the water jet is used for flushing or stripping process, about 25MPa pressure water jet can penetrate the human body; and the water pressure used for cutting up to 196 ~ 294MPa, such a high-pressure water jets can easily cut off human bone. In addition, if the recoil scattering drops of water injected into the eye, but also make eye damage. Therefore, we must prevent high-pressure water jet sprayed onto the body, you can take the following safety measures:
1, The operator should wear protective glasses at least, it is best to wear a protective mask.
2, To check or replace the cutting nozzle, the pressure of the high-pressure water must be released to the safety level, otherwise the operation can not be performed, in order to avoid accidents.
3, In the surrounding area of high pressure water jet cutting should be set up isolation screen to prevent in the process of human suffering water jet ejected and scattering drops shock effect.
Source: http://www.waterjetnozzles.com High Pressure Waterjet Parts.
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