Abstract: A mixer for desedimentation of the precipitate in a containment vat of at least one suspension for agricultural use, which comprises dispenser for at least one pressurized fluid for washing the bottom of the vat to lift and disperse the precipitate. The dispensers comprise a first plurality of nozzles which generate concentrated jets of washing fluid which are mutually separate and at least directed toward the vat bottom. Spacers are provided for spacing the dispensers from the vat bottom, that are jointly associatable inside the vat proximate to the bottom. The dispensers comprise a box-shaped body, internally hollow, and provided with at least one inlet for washing fluid, connected with an inflow for introducing the washing fluid under pressure. A plurality of first seats are arranged at least on the lower wall of the body that is directed toward the bottom for accommodating at least the first plurality of nozzles.

Abstract: A universal head for fixing a nozzle to a fluid distribution duct comprises a cap-like sleeve adapted to be associated with the outlet of the duct, a nozzle insertion slot formed at the top of the sleeve, and wings for locking the nozzle that can expand radially and are formed proximate to the slot.

Abstract: A universal head for fixing a nozzle to a fluid distribution duct comprises a cap-like sleeve adapted to be associated with the outlet of the duct, a nozzle insertion slot formed at the top of the sleeve, and wings for locking the nozzle that can expand radially and are formed proximate to the slot.

Abstract: A pneumatically-actuated membrane valve for fluid branching ducts comprises an internally hollow cylinder associable with an end of the duct that is substantially coaxial thereto and inside which a plunger is slidingly accommodated, the head of the plunger being adapted to interact with a circular membrane for closing the end of the duct. The plunger is actuated pneumatically between a closed or open configuration, and an open or closed configuration of the end of the branching duct, at least one abutment for stopping the stroke of said plunger being formed inside the cylinder.