Abstract: Hydraulic control comprising at least one hydraulic valve, each hydraulic valve comprising a hydraulic distributor and an electric actuator. The hydraulic distributor comprises a valve slide mounted with the ability to slide in a body comprising hydraulic ports. The electric actuator is fixed to the body of the hydraulic distributor and comprises an electric motor, an electronic circuit comprising a circuit board, a linear-displacement output member coupled to the control slide, reduction gearing comprising gear wheels coupling the motor to the output member, and a housing in which the electric motor, the electronic circuit and the reduction gearing are mounted.

Abstract: Hydraulic control comprising at least one hydraulic valve, each hydraulic valve comprising a hydraulic distributor and an electric actuator. The hydraulic distributor comprises a valve slide mounted with the ability to slide in a body comprising hydraulic ports. The electric actuator is fixed to the body of the hydraulic distributor and comprises an electric motor, an electronic circuit comprising a circuit board, a linear-displacement output member coupled to the control slide, reduction gearing comprising gear wheels coupling the motor to the output member, and a housing in which the electric motor, the electronic circuit and the reduction gearing are mounted.

Abstract: A membrane or piston pump drive comprises a stepping motor (2) and a rotary-to-linear conversion mechanism for converting the rotary movement into a translation movement (6). The rotary-to-linear conversion mechanism comprises a rotary member (4) and a piston member (7) intended to move a piston or a membrane of the pump. The stepping motor comprises a rotor coupled to the rotary member which engages the piston member (7) in order to drive it in an essentially linear reciprocating movement.