The present application relates to a hydraulic assembly (100) of a generator of medium-pressure and high-pressure pulsed or non-pulsed jets comprising a hydraulic pipe: (101) comprising a flexible deformable zone (103) that can have a state of rest and a shut-off state, and a unit (102) configured to hold the hydraulic pipe (101) and comprising a first clamp (110) and a second clamp (111) holding the hydraulic pipe (101) on each side of the flexible deformable zone (103), and an open space (112) defined between the first clamp (110) and the second clamp (111).
