| 摘要 |
This jet for spraying contaminated liquids at variable pressures has on the shell of the jet a screwed case closed by a plug (3) and equipped with bypass holes (8) and, in the expanded part, there is seat (7) in which there is the cone of a hollow needle (6), equipped on the other end with a piston (4), the diameter of which smaller than the radius of the seat (7) which creates the necessary pressure difference to relocate the needle (6) while decreasing the outlet gap filled with impurities.<IMAGE>
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