Patent ID: 9004444
Filing Date: 2015-04-14
Classification: F16K

Abstract:
1. Valve control device, comprising: a body of the device with a longitudinal axis; a control member of a valve, housed at least partially in the body in a bottom portion along the longitudinal axis; a piston, movable along the longitudinal axis, the piston being housed in a portion of the body forming with the piston a control chamber of the piston, the chamber being adapted to be connected to a pressurized fluid, the device being manufactured for the piston to be able to transmit its movement to the control member in view of controlling the valve; wherein the device further comprises: a movable element, that can be manipulated in rotation with respect to the longitudinal axis on a top portion of the body; the movable element comprising a connection port of the pressurized fluid off-centered with respect to the longitudinal axis; the control chamber comprising an outer planar surface vis-à-vis which the movable element moves in rotation, the outer planar surface comprising, facing the movable element, a passage, also off-centered, to the connection port; a joint between the movable element and the control chamber in the area of the connection port and/or of the passage, so as to provide sealing of the feedstream when the connection port and the passage are aligned by appropriate manipulation of the movable element; and wherein the disc-shaped portion of the movable element comprises a track moving by gliding on the joint during the rotation of the movable element.